第1页 / 共884页
第2页 / 共884页
第3页 / 共884页
第4页 / 共884页
第5页 / 共884页
第6页 / 共884页
第7页 / 共884页
第8页 / 共884页
ANSYS_Fluent_Tutorial_Guide_19.2.pdf
ANSYS Fluent Tutorial Guide
Table of Contents
Using This Manual
1. What’s In This Manual
2. How To Use This Manual
2.1. For the Beginner
2.2. For the Experienced User
3. Typographical Conventions Used In This Manual
Chapter 1: Introduction to Using ANSYS Fluent: Fluid Flow and Heat Transfer in a Mixing Elbow
1.1. Introduction
1.2. Prerequisites
1.3. Problem Description
1.4. Setup and Solution
1.4.1. Preparation
1.4.2. Launching ANSYS Fluent
1.4.3. Reading the Mesh
1.4.4. Setting Up Domain
1.4.5. Setting Up Physics
1.4.6. Solving
1.4.7. Displaying the Preliminary Solution
1.4.8. Using the Coupled Solver
1.4.9. Adapting the Mesh
1.5. Summary
Chapter 2: Postprocessing
2.1. Introduction
2.2. Prerequisites
2.3. Problem Description
2.4. Setup and Solution
2.4.1. Preparation
2.4.2. Reading the Mesh
2.4.3. Manipulating the Mesh in the Viewer
2.4.4. Adding Lights
2.4.5. Creating Isosurfaces
2.4.6. Generating Contours
2.4.7. Generating Velocity Vectors
2.4.8. Creating an Animation
2.4.9. Displaying Pathlines
2.4.10. Creating a Scene With Vectors and Contours
2.4.11. Advanced Overlay of Pathlines on a Scene
2.4.12. Creating Exploded Views
2.4.13. Animating the Display of Results in Successive Streamwise Planes
2.4.14. Generating XY Plots
2.4.15. Creating Annotation
2.4.16. Saving Picture Files
2.4.17. Generating Volume Integral Reports
2.5. Summary
Chapter 3: Modeling Periodic Flow and Heat Transfer
3.1. Introduction
3.2. Prerequisites
3.3. Problem Description
3.4. Setup and Solution
3.4.1. Preparation
3.4.2. Mesh
3.4.3. General Settings
3.4.4. Models
3.4.5. Materials
3.4.6. Cell Zone Conditions
3.4.7. Periodic Conditions
3.4.8. Boundary Conditions
3.4.9. Solution
3.4.10. Postprocessing
3.5. Summary
3.6. Further Improvements
Chapter 4: Modeling External Compressible Flow
4.1. Introduction
4.2. Prerequisites
4.3. Problem Description
4.4. Setup and Solution
4.4.1. Preparation
4.4.2. Mesh
4.4.3. Solver
4.4.4. Models
4.4.5. Materials
4.4.6. Boundary Conditions
4.4.7. Operating Conditions
4.4.8. Solution
4.4.9. Postprocessing
4.5. Summary
4.6. Further Improvements
Chapter 5: Modeling Transient Compressible Flow
5.1. Introduction
5.2. Prerequisites
5.3. Problem Description
5.4. Setup and Solution
5.4.1. Preparation
5.4.2. Reading and Checking the Mesh
5.4.3. Solver and Analysis Type
5.4.4. Models
5.4.5. Materials
5.4.6. Operating Conditions
5.4.7. Boundary Conditions
5.4.8. Solution: Steady Flow
5.4.9. Enabling Time Dependence and Setting Transient Conditions
5.4.10. Specifying Solution Parameters for Transient Flow and Solving
5.4.11. Saving and Postprocessing Time-Dependent Data Sets
5.5. Summary
5.6. Further Improvements
Chapter 6: Modeling Flow Through Porous Media
6.1. Introduction
6.2. Prerequisites
6.3. Problem Description
6.4. Setup and Solution
6.4.1. Preparation
6.4.2. Mesh
6.4.3. General Settings
6.4.4. Models
6.4.5. Materials
6.4.6. Cell Zone Conditions
6.4.7. Boundary Conditions
6.4.8. Solution
6.4.9. Postprocessing
6.5. Summary
6.6. Further Improvements
Chapter 7: Modeling Radiation and Natural Convection
7.1. Introduction
7.2. Prerequisites
7.3. Problem Description
7.4. Setup and Solution
7.4.1. Preparation
7.4.2. Reading and Checking the Mesh
7.4.3. Solver and Analysis Type
7.4.4. Models
7.4.5. Defining the Materials
7.4.6. Operating Conditions
7.4.7. Boundary Conditions
7.4.8. Obtaining the Solution
7.4.9. Postprocessing
7.4.10. Comparing the Contour Plots after Varying Radiating Surfaces
7.4.11. S2S Definition, Solution, and Postprocessing with Partial Enclosure
7.5. Summary
7.6. Further Improvements
Chapter 8: Using a Single Rotating Reference Frame
8.1. Introduction
8.2. Prerequisites
8.3. Problem Description
8.4. Setup and Solution
8.4.1. Preparation
8.4.2. Mesh
8.4.3. General Settings
8.4.4. Models
8.4.5. Materials
8.4.6. Cell Zone Conditions
8.4.7. Boundary Conditions
8.4.8. Solution Using the Standard k- ε Model
8.4.9. Postprocessing for the Standard k- ε Solution
8.4.10. Solution Using the RNG k- ε Model
8.4.11. Postprocessing for the RNG k- ε Solution
8.5. Summary
8.6. Further Improvements
8.7. References
Chapter 9: Using Multiple Reference Frames
9.1. Introduction
9.2. Prerequisites
9.3. Problem Description
9.4. Setup and Solution
9.4.1. Preparation
9.4.2. Reading and Checking the Mesh and Setting the Units
9.4.3. Specifying Solver and Analysis Type
9.4.4. Specifying the Models
9.4.5. Specifying Materials
9.4.6. Specifying Cell Zone Conditions
9.4.7. Setting Boundary Conditions
9.4.8. Defining Mesh Interfaces
9.4.9. Obtaining the Solution
9.4.10. Step 9: Postprocessing
9.5. Summary
9.6. Further Improvements
Chapter 10: Using Sliding Meshes
10.1. Introduction
10.2. Prerequisites
10.3. Problem Description
10.4. Setup and Solution
10.4.1. Preparation
10.4.2. Mesh
10.4.3. General Settings
10.4.4. Models
10.4.5. Materials
10.4.6. Cell Zone Conditions
10.4.7. Boundary Conditions
10.4.8. Operating Conditions
10.4.9. Mesh Interfaces
10.4.10. Solution
10.4.11. Postprocessing
10.5. Summary
10.6. Further Improvements
Chapter 11: Using Overset and Dynamic Meshes
11.1. Prerequisites
11.2. Problem Description
11.3. Preparation
11.4. Mesh
11.5. Overset Interface Creation
11.6. Steady-State Case Setup
11.6.1. General Settings
11.6.2. Models
11.6.3. Materials
11.6.4. Operating Conditions
11.6.5. Boundary Conditions
11.6.6. Reference Values
11.6.7. Solution
11.7. Unsteady Setup
11.7.1. General Settings
11.7.2. Compile the UDF
11.7.3. Dynamic Mesh Settings
11.7.4. Report Generation for Unsteady Case
11.7.5. Run Calculations for Unsteady Case
11.7.6. Overset Solution Checking
11.7.7. Postprocessing
11.7.8. Diagnosing an Overset Case
11.8. Summary
Chapter 12: Modeling Species Transport and Gaseous Combustion
12.1. Introduction
12.2. Prerequisites
12.3. Problem Description
12.4. Background
12.5. Setup and Solution
12.5.1. Preparation
12.5.2. Mesh
12.5.3. General Settings
12.5.4. Models
12.5.5. Materials
12.5.6. Boundary Conditions
12.5.7. Initial Reaction Solution
12.5.8. Postprocessing
12.5.9. NOx Prediction
12.6. Summary
12.7. Further Improvements
Chapter 13: Using the Non-Premixed Combustion Model
13.1. Introduction
13.2. Prerequisites
13.3. Problem Description
13.4. Setup and Solution
13.4.1. Preparation
13.4.2. Reading and Checking the Mesh
13.4.3. Specifying Solver and Analysis Type
13.4.4. Specifying the Models
13.4.5. Defining Materials and Properties
13.4.6. Specifying Boundary Conditions
13.4.7. Specifying Operating Conditions
13.4.8. Obtaining Solution
13.4.9. Postprocessing
13.4.10. Energy Balances Reporting
13.5. Summary
13.6. References
13.7. Further Improvements
Chapter 14: Modeling Surface Chemistry
14.1. Introduction
14.2. Prerequisites
14.3. Problem Description
14.4. Setup and Solution
14.4.1. Preparation
14.4.2. Reading and Checking the Mesh
14.4.3. Solver and Analysis Type
14.4.4. Specifying the Models
14.4.5. Defining Materials and Properties
14.4.6. Specifying Boundary Conditions
14.4.7. Setting the Operating Conditions
14.4.8. Simulating Non-Reacting Flow
14.4.9. Simulating Reacting Flow
14.4.10. Postprocessing the Solution Results
14.5. Summary
14.6. Further Improvements
Chapter 15: Modeling Evaporating Liquid Spray
15.1. Introduction
15.2. Prerequisites
15.3. Problem Description
15.4. Setup and Solution
15.4.1. Preparation
15.4.2. Mesh
15.4.3. Solver
15.4.4. Models
15.4.5. Materials
15.4.6. Boundary Conditions
15.4.7. Initial Solution Without Droplets
15.4.8. Creating a Spray Injection
15.4.9. Solution
15.4.10. Postprocessing
15.5. Summary
15.6. Further Improvements
Chapter 16: Using the VOF Model
16.1. Introduction
16.2. Prerequisites
16.3. Problem Description
16.4. Setup and Solution
16.4.1. Preparation
16.4.2. Reading and Manipulating the Mesh
16.4.3. General Settings
16.4.4. Models
16.4.5. Materials
16.4.6. Phases
16.4.7. Operating Conditions
16.4.8. User-Defined Function (UDF)
16.4.9. Boundary Conditions
16.4.10. Solution
16.4.11. Postprocessing
16.5. Summary
16.6. Further Improvements
Chapter 17: Modeling Cavitation
17.1. Introduction
17.2. Prerequisites
17.3. Problem Description
17.4. Setup and Solution
17.4.1. Preparation
17.4.2. Reading and Checking the Mesh
17.4.3. Solver Settings
17.4.4. Models
17.4.5. Materials
17.4.6. Phases
17.4.7. Boundary Conditions
17.4.8. Operating Conditions
17.4.9. Solution
17.4.10. Postprocessing
17.5. Summary
17.6. Further Improvements
Chapter 18: Using the Mixture and Eulerian Multiphase Models
18.1. Introduction
18.2. Prerequisites
18.3. Problem Description
18.4. Setup and Solution
18.4.1. Preparation
18.4.2. Mesh
18.4.3. General Settings
18.4.4. Models
18.4.5. Materials
18.4.6. Phases
18.4.7. Boundary Conditions
18.4.8. Operating Conditions
18.4.9. Solution Using the Mixture Model
18.4.10. Postprocessing for the Mixture Solution
18.4.11. Higher Order Solution using the Mixture Model
18.4.12. Setup and Solution for the Eulerian Model
18.4.13. Postprocessing for the Eulerian Model
18.5. Summary
18.6. Further Improvements
Chapter 19: Modeling Solidification
19.1. Introduction
19.2. Prerequisites
19.3. Problem Description
19.4. Setup and Solution
19.4.1. Preparation
19.4.2. Reading and Checking the Mesh
19.4.3. Specifying Solver and Analysis Type
19.4.4. Specifying the Models
19.4.5. Defining Materials
19.4.6. Setting the Cell Zone Conditions
19.4.7. Setting the Boundary Conditions
19.4.8. Solution: Steady Conduction
19.4.9. Solution: Transient Flow and Heat Transfer
19.5. Summary
19.6. Further Improvements
Chapter 20: Using the Eulerian Granular Multiphase Model with Heat Transfer
20.1. Introduction
20.2. Prerequisites
20.3. Problem Description
20.4. Setup and Solution
20.4.1. Preparation
20.4.2. Mesh
20.4.3. Solver Settings
20.4.4. Models
20.4.5. UDF
20.4.6. Materials
20.4.7. Phases
20.4.8. Boundary Conditions
20.4.9. Solution
20.4.10. Postprocessing
20.5. Summary
20.6. Further Improvements
20.7. References
Chapter 21: Using the Adjoint Solver – 2D Laminar Flow Past a Cylinder
21.1. Introduction
21.2. Prerequisites
21.3. Problem Description
21.4. Setup and Solution
21.4.1. Step 1: Preparation
21.4.2. Step 2: Define Observables
21.4.3. Step 3: Compute the Drag Sensitivity
21.4.4. Step 4: Postprocess and Export Drag Sensitivity
21.4.4.1. Boundary Condition Sensitivity
21.4.4.2. Momentum Source Sensitivity
21.4.4.3. Shape Sensitivity
21.4.4.4. Exporting Drag Sensitivity Data
21.4.5. Step 5: Compute Lift Sensitivity
21.4.6. Step 6: Modify the Shape
21.5. Summary
Chapter 22: Simulating a Single Battery Cell Using the MSMD Battery Model
22.1. Introduction
22.2. Prerequisites
22.3. Problem Description
22.4. Setup and Solution
22.4.1. Preparation
22.4.2. Reading and Scaling the Mesh
22.4.3. Loading the MSMD battery Add-on
22.4.4. NTGK Battery Model Setup
22.4.4.1. Specifying Solver and Models
22.4.4.2. Defining New Materials for Cell and Tabs
22.4.4.3. Defining Cell Zone Conditions
22.4.4.4. Defining Boundary Conditions
22.4.4.5. Specifying Solution Settings
22.4.4.6. Obtaining Solution
22.4.5. Postprocessing
22.4.6. Simulating the Battery Pulse Discharge Using the ECM Model
22.4.7. Using the Reduced Order Method (ROM)
22.4.8. External and Internal Short-Circuit Treatment
22.4.8.1. Setting up and Solving a Short-Circuit Problem
22.4.8.2. Postprocessing
22.5. Summary
22.6. Appendix
22.7. References
Chapter 23: Simulating a 1P3S Battery Pack Using the MSMD Battery Model
23.1. Introduction
23.2. Prerequisites
23.3. Problem Description
23.4. Setup and Solution
23.4.1. Preparation
23.4.2. Reading and Scaling the Mesh
23.4.3. Loading the MSMD battery Add-on
23.4.4. Battery Model Setup
23.4.4.1. Specifying Solver and Models
23.4.4.2. Defining New Materials
23.4.4.3. Defining Cell Zone Conditions
23.4.4.4. Defining Boundary Conditions
23.4.4.5. Specifying Solution Settings
23.4.4.6. Obtaining Solution
23.4.5. Postprocessing
23.5. Summary
ANSYS Fluent Tutorial Guide
ANSYS, Inc.
Southpointe
2600 ANSYS Drive
Canonsburg, PA 15317
ansysinfo@ansys.com
http://www.ansys.com
(T) 724-746-3304
(F) 724-514-9494
Release 19.2
August 2018
ANSYS, Inc. and
ANSYS Europe,
Ltd. are UL
registered ISO
9001: 2015
companies.
Copyright and Trademark Information
© 2018 ANSYS, Inc. Unauthorized use, distribution or duplication is prohibited.
ANSYS, ANSYS Workbench, AUTODYN, CFX, FLUENT and any and all ANSYS, Inc. brand, product, service and feature
names, logos and slogans are registered trademarks or trademarks of ANSYS, Inc. or its subsidiaries located in the
United States or other countries. ICEM CFD is a trademark used by ANSYS, Inc. under license. CFX is a trademark
of Sony Corporation in Japan. All other brand, product, service and feature names or trademarks are the property
of their respective owners. FLEXlm and FLEXnet are trademarks of Flexera Software LLC.
Disclaimer Notice
THIS ANSYS SOFTWARE PRODUCT AND PROGRAM DOCUMENTATION INCLUDE TRADE SECRETS AND ARE CONFID-
ENTIAL AND PROPRIETARY PRODUCTS OF ANSYS, INC., ITS SUBSIDIARIES, OR LICENSORS. The software products
and documentation are furnished by ANSYS, Inc., its subsidiaries, or affiliates under a software license agreement
that contains provisions concerning non-disclosure, copying, length and nature of use, compliance with exporting
laws, warranties, disclaimers, limitations of liability, and remedies, and other provisions. The software products
and documentation may be used, disclosed, transferred, or copied only in accordance with the terms and conditions
of that software license agreement.
ANSYS, Inc. and ANSYS Europe, Ltd. are UL registered ISO 9001: 2015 companies.
U.S. Government Rights
For U.S. Government users, except as specifically granted by the ANSYS, Inc. software license agreement, the use,
duplication, or disclosure by the United States Government is subject to restrictions stated in the ANSYS, Inc.
software license agreement and FAR 12.212 (for non-DOD licenses).
Third-Party Software
See the legal information in the product help files for the complete Legal Notice for ANSYS proprietary software
and third-party software. If you are unable to access the Legal Notice, contact ANSYS, Inc.
Published in the U.S.A.
Table of Contents
Using This Manual ...................................................................................................................................... xxi
1. What’s In This Manual ........................................................................................................................ xxi
2. How To Use This Manual .................................................................................................................... xxi
2.1. For the Beginner ....................................................................................................................... xxi
2.2. For the Experienced User .......................................................................................................... xxi
3.Typographical Conventions Used In This Manual ................................................................................ xxi
1. Introduction to Using ANSYS Fluent: Fluid Flow and Heat Transfer in a Mixing Elbow .......................... 1
1.1. Introduction ..................................................................................................................................... 1
1.2. Prerequisites ..................................................................................................................................... 1
1.3. Problem Description ......................................................................................................................... 1
1.4. Setup and Solution ........................................................................................................................... 2
1.4.1. Preparation .............................................................................................................................. 3
1.4.2. Launching ANSYS Fluent .......................................................................................................... 3
1.4.3. Reading the Mesh .................................................................................................................... 6
1.4.4. Setting Up Domain .................................................................................................................. 9
1.4.5. Setting Up Physics .................................................................................................................. 12
1.4.6. Solving .................................................................................................................................. 24
1.4.7. Displaying the Preliminary Solution ........................................................................................ 34
1.4.8. Using the Coupled Solver ....................................................................................................... 48
1.4.9. Adapting the Mesh ................................................................................................................. 50
1.5. Summary ........................................................................................................................................ 63
2. Postprocessing ...................................................................................................................................... 65
2.1. Introduction ................................................................................................................................... 65
2.2. Prerequisites ................................................................................................................................... 66
2.3. Problem Description ....................................................................................................................... 66
2.4. Setup and Solution ......................................................................................................................... 66
2.4.1. Preparation ............................................................................................................................ 67
2.4.2. Reading the Mesh .................................................................................................................. 67
2.4.3. Manipulating the Mesh in the Viewer ...................................................................................... 67
2.4.4. Adding Lights ........................................................................................................................ 69
2.4.5. Creating Isosurfaces ............................................................................................................... 73
2.4.6. Generating Contours .............................................................................................................. 76
2.4.7. Generating Velocity Vectors .................................................................................................... 80
2.4.8. Creating an Animation ........................................................................................................... 86
2.4.9. Displaying Pathlines ............................................................................................................... 91
2.4.10. Creating a Scene With Vectors and Contours ......................................................................... 96
2.4.11. Advanced Overlay of Pathlines on a Scene ............................................................................ 98
2.4.12. Creating Exploded Views .................................................................................................... 100
2.4.13. Animating the Display of Results in Successive Streamwise Planes ....................................... 105
2.4.14. Generating XY Plots ............................................................................................................ 107
2.4.15. Creating Annotation ........................................................................................................... 111
2.4.16. Saving Picture Files ............................................................................................................. 113
2.4.17. Generating Volume Integral Reports ................................................................................... 113
2.5. Summary ...................................................................................................................................... 114
3. Modeling Periodic Flow and Heat Transfer ......................................................................................... 115
3.1. Introduction ................................................................................................................................. 115
3.2. Prerequisites ................................................................................................................................. 115
3.3. Problem Description ..................................................................................................................... 116
3.4. Setup and Solution ....................................................................................................................... 116
3.4.1. Preparation .......................................................................................................................... 117
Release 19.2 - © ANSYS, Inc. All rights reserved. - Contains proprietary and confidential information
of ANSYS, Inc. and its subsidiaries and affiliates.
iii
Tutorial Guide
3.4.2. Mesh .................................................................................................................................... 117
3.4.3. General Settings ................................................................................................................... 120
3.4.4. Models ................................................................................................................................. 120
3.4.5. Materials .............................................................................................................................. 121
3.4.6. Cell Zone Conditions ............................................................................................................ 122
3.4.7. Periodic Conditions .............................................................................................................. 123
3.4.8. Boundary Conditions ............................................................................................................ 123
3.4.9. Solution ............................................................................................................................... 124
3.4.10. Postprocessing ................................................................................................................... 129
3.5. Summary ...................................................................................................................................... 137
3.6. Further Improvements .................................................................................................................. 137
4. Modeling External Compressible Flow ............................................................................................... 139
4.1. Introduction ................................................................................................................................. 139
4.2. Prerequisites ................................................................................................................................. 139
4.3. Problem Description ..................................................................................................................... 139
4.4. Setup and Solution ....................................................................................................................... 140
4.4.1. Preparation .......................................................................................................................... 140
4.4.2. Mesh .................................................................................................................................... 140
4.4.3. Solver .................................................................................................................................. 142
4.4.4. Models ................................................................................................................................. 143
4.4.5. Materials .............................................................................................................................. 144
4.4.6. Boundary Conditions ............................................................................................................ 145
4.4.7. Operating Conditions ........................................................................................................... 148
4.4.8. Solution ............................................................................................................................... 149
4.4.9. Postprocessing ..................................................................................................................... 165
4.5. Summary ...................................................................................................................................... 171
4.6. Further Improvements .................................................................................................................. 171
5. Modeling Transient Compressible Flow .............................................................................................. 173
5.1. Introduction ................................................................................................................................. 173
5.2. Prerequisites ................................................................................................................................. 173
5.3. Problem Description ..................................................................................................................... 173
5.4. Setup and Solution ....................................................................................................................... 174
5.4.1. Preparation .......................................................................................................................... 174
5.4.2. Reading and Checking the Mesh ........................................................................................... 174
5.4.3. Solver and Analysis Type ....................................................................................................... 177
5.4.4. Models ................................................................................................................................. 178
5.4.5. Materials .............................................................................................................................. 179
5.4.6. Operating Conditions ........................................................................................................... 180
5.4.7. Boundary Conditions ............................................................................................................ 180
5.4.8. Solution: Steady Flow ........................................................................................................... 183
5.4.9. Enabling Time Dependence and Setting Transient Conditions ............................................... 196
5.4.10. Specifying Solution Parameters for Transient Flow and Solving ............................................ 199
5.4.11. Saving and Postprocessing Time-Dependent Data Sets ....................................................... 202
5.5. Summary ...................................................................................................................................... 215
5.6. Further Improvements .................................................................................................................. 215
6. Modeling Flow Through Porous Media ............................................................................................... 217
6.1. Introduction ................................................................................................................................. 217
6.2. Prerequisites ................................................................................................................................. 217
6.3. Problem Description ..................................................................................................................... 218
6.4. Setup and Solution ....................................................................................................................... 218
6.4.1. Preparation .......................................................................................................................... 218
6.4.2. Mesh .................................................................................................................................... 219
iv
Release 19.2 - © ANSYS, Inc. All rights reserved. - Contains proprietary and confidential information
of ANSYS, Inc. and its subsidiaries and affiliates.
Tutorial Guide
6.4.3. General Settings ................................................................................................................... 221
6.4.4. Models ................................................................................................................................. 221
6.4.5. Materials .............................................................................................................................. 222
6.4.6. Cell Zone Conditions ............................................................................................................ 224
6.4.7. Boundary Conditions ............................................................................................................ 227
6.4.8. Solution ............................................................................................................................... 230
6.4.9. Postprocessing ..................................................................................................................... 234
6.5. Summary ...................................................................................................................................... 248
6.6. Further Improvements .................................................................................................................. 248
7. Modeling Radiation and Natural Convection ..................................................................................... 249
7.1. Introduction ................................................................................................................................. 249
7.2. Prerequisites ................................................................................................................................. 249
7.3. Problem Description ..................................................................................................................... 249
7.4. Setup and Solution ....................................................................................................................... 250
7.4.1. Preparation .......................................................................................................................... 250
7.4.2. Reading and Checking the Mesh ........................................................................................... 251
7.4.3. Solver and Analysis Type ....................................................................................................... 251
7.4.4. Models ................................................................................................................................. 252
7.4.5. Defining the Materials .......................................................................................................... 256
7.4.6. Operating Conditions ........................................................................................................... 257
7.4.7. Boundary Conditions ............................................................................................................ 258
7.4.8. Obtaining the Solution ......................................................................................................... 262
7.4.9. Postprocessing ..................................................................................................................... 269
7.4.10. Comparing the Contour Plots after Varying Radiating Surfaces ............................................ 282
7.4.11. S2S Definition, Solution, and Postprocessing with Partial Enclosure ...................................... 287
7.5. Summary ...................................................................................................................................... 291
7.6. Further Improvements .................................................................................................................. 291
8. Using a Single Rotating Reference Frame ........................................................................................... 293
8.1. Introduction ................................................................................................................................. 293
8.2. Prerequisites ................................................................................................................................. 293
8.3. Problem Description ..................................................................................................................... 293
8.4. Setup and Solution ....................................................................................................................... 294
8.4.1. Preparation .......................................................................................................................... 295
8.4.2. Mesh .................................................................................................................................... 295
8.4.3. General Settings ................................................................................................................... 295
8.4.4. Models ................................................................................................................................. 297
8.4.5. Materials .............................................................................................................................. 299
8.4.6. Cell Zone Conditions ............................................................................................................ 299
8.4.7. Boundary Conditions ............................................................................................................ 300
8.4.8. Solution Using the Standard k- ε Model ................................................................................. 303
8.4.9. Postprocessing for the Standard k- ε Solution ........................................................................ 310
8.4.10. Solution Using the RNG k- ε Model ...................................................................................... 319
8.4.11. Postprocessing for the RNG k- ε Solution ............................................................................. 321
8.5. Summary ...................................................................................................................................... 326
8.6. Further Improvements .................................................................................................................. 326
8.7. References .................................................................................................................................... 327
9. Using Multiple Reference Frames ....................................................................................................... 329
9.1. Introduction ................................................................................................................................. 329
9.2. Prerequisites ................................................................................................................................. 330
9.3. Problem Description ..................................................................................................................... 330
9.4. Setup and Solution ....................................................................................................................... 330
9.4.1. Preparation .......................................................................................................................... 331
Release 19.2 - © ANSYS, Inc. All rights reserved. - Contains proprietary and confidential information
of ANSYS, Inc. and its subsidiaries and affiliates.
v
Tutorial Guide
9.4.2. Reading and Checking the Mesh and Setting the Units .......................................................... 331
9.4.3. Specifying Solver and Analysis Type ...................................................................................... 333
9.4.4. Specifying the Models .......................................................................................................... 333
9.4.5. Specifying Materials ............................................................................................................. 334
9.4.6. Specifying Cell Zone Conditions ........................................................................................... 335
9.4.7. Setting Boundary Conditions ................................................................................................ 338
9.4.8. Defining Mesh Interfaces ...................................................................................................... 339
9.4.9. Obtaining the Solution ......................................................................................................... 340
9.4.10. Step 9: Postprocessing ........................................................................................................ 344
9.5. Summary ...................................................................................................................................... 349
9.6. Further Improvements .................................................................................................................. 349
10. Using Sliding Meshes ........................................................................................................................ 351
10.1. Introduction ............................................................................................................................... 351
10.2. Prerequisites ............................................................................................................................... 351
10.3. Problem Description ................................................................................................................... 351
10.4. Setup and Solution ..................................................................................................................... 352
10.4.1. Preparation ........................................................................................................................ 352
10.4.2. Mesh .................................................................................................................................. 353
10.4.3. General Settings ................................................................................................................. 353
10.4.4. Models ............................................................................................................................... 356
10.4.5. Materials ............................................................................................................................ 356
10.4.6. Cell Zone Conditions .......................................................................................................... 357
10.4.7. Boundary Conditions .......................................................................................................... 360
10.4.8. Operating Conditions ......................................................................................................... 366
10.4.9. Mesh Interfaces .................................................................................................................. 367
10.4.10. Solution ........................................................................................................................... 368
10.4.11. Postprocessing ................................................................................................................. 385
10.5. Summary .................................................................................................................................... 389
10.6. Further Improvements ................................................................................................................ 389
11. Using Overset and Dynamic Meshes ................................................................................................. 391
11.1. Prerequisites ............................................................................................................................... 392
11.2. Problem Description ................................................................................................................... 392
11.3. Preparation ................................................................................................................................. 393
11.4. Mesh .......................................................................................................................................... 393
11.5. Overset Interface Creation ........................................................................................................... 396
11.6. Steady-State Case Setup .............................................................................................................. 399
11.6.1. General Settings ................................................................................................................. 399
11.6.2. Models ............................................................................................................................... 399
11.6.3. Materials ............................................................................................................................ 400
11.6.4. Operating Conditions ......................................................................................................... 401
11.6.5. Boundary Conditions .......................................................................................................... 401
11.6.6. Reference Values ................................................................................................................ 402
11.6.7. Solution ............................................................................................................................. 403
11.7. Unsteady Setup .......................................................................................................................... 408
11.7.1. General Settings ................................................................................................................. 408
11.7.2. Compile the UDF ................................................................................................................ 409
11.7.3. Dynamic Mesh Settings ...................................................................................................... 409
11.7.4. Report Generation for Unsteady Case ................................................................................. 411
11.7.5. Run Calculations for Unsteady Case .................................................................................... 412
11.7.6. Overset Solution Checking ................................................................................................. 414
11.7.7. Postprocessing ................................................................................................................... 414
11.7.8. Diagnosing an Overset Case ............................................................................................... 417
vi
Release 19.2 - © ANSYS, Inc. All rights reserved. - Contains proprietary and confidential information
of ANSYS, Inc. and its subsidiaries and affiliates.
Tutorial Guide
11.8. Summary .................................................................................................................................... 424
12. Modeling Species Transport and Gaseous Combustion ................................................................... 425
12.1. Introduction ............................................................................................................................... 425
12.2. Prerequisites ............................................................................................................................... 425
12.3. Problem Description ................................................................................................................... 425
12.4. Background ................................................................................................................................ 426
12.5. Setup and Solution ..................................................................................................................... 426
12.5.1. Preparation ........................................................................................................................ 426
12.5.2. Mesh .................................................................................................................................. 427
12.5.3. General Settings ................................................................................................................. 427
12.5.4. Models ............................................................................................................................... 430
12.5.5. Materials ............................................................................................................................ 433
12.5.6. Boundary Conditions .......................................................................................................... 436
12.5.7. Initial Reaction Solution ...................................................................................................... 442
12.5.8. Postprocessing ................................................................................................................... 448
12.5.9. NOx Prediction ................................................................................................................... 456
12.6. Summary .................................................................................................................................... 468
12.7. Further Improvements ................................................................................................................ 469
13. Using the Non-Premixed Combustion Model ................................................................................... 471
13.1. Introduction ............................................................................................................................... 471
13.2. Prerequisites ............................................................................................................................... 471
13.3. Problem Description ................................................................................................................... 472
13.4. Setup and Solution ..................................................................................................................... 473
13.4.1. Preparation ........................................................................................................................ 473
13.4.2. Reading and Checking the Mesh ......................................................................................... 474
13.4.3. Specifying Solver and Analysis Type .................................................................................... 477
13.4.4. Specifying the Models ........................................................................................................ 478
13.4.5. Defining Materials and Properties ....................................................................................... 485
13.4.6. Specifying Boundary Conditions ......................................................................................... 486
13.4.7. Specifying Operating Conditions ........................................................................................ 494
13.4.8. Obtaining Solution ............................................................................................................. 494
13.4.9. Postprocessing ................................................................................................................... 498
13.4.10. Energy Balances Reporting ............................................................................................... 501
13.5. Summary .................................................................................................................................... 503
13.6. References .................................................................................................................................. 503
13.7. Further Improvements ................................................................................................................ 503
14. Modeling Surface Chemistry ............................................................................................................. 505
14.1. Introduction ............................................................................................................................... 505
14.2. Prerequisites ............................................................................................................................... 505
14.3. Problem Description ................................................................................................................... 506
14.4. Setup and Solution ..................................................................................................................... 507
14.4.1. Preparation ........................................................................................................................ 507
14.4.2. Reading and Checking the Mesh ......................................................................................... 507
14.4.3. Solver and Analysis Type ..................................................................................................... 509
14.4.4. Specifying the Models ........................................................................................................ 510
14.4.5. Defining Materials and Properties ....................................................................................... 511
14.4.6. Specifying Boundary Conditions ......................................................................................... 522
14.4.7. Setting the Operating Conditions ....................................................................................... 528
14.4.8. Simulating Non-Reacting Flow ............................................................................................ 529
14.4.9. Simulating Reacting Flow ................................................................................................... 532
14.4.10. Postprocessing the Solution Results .................................................................................. 538
14.5. Summary .................................................................................................................................... 545
Release 19.2 - © ANSYS, Inc. All rights reserved. - Contains proprietary and confidential information
of ANSYS, Inc. and its subsidiaries and affiliates.
vii
Tutorial Guide
14.6. Further Improvements ................................................................................................................ 545
15. Modeling Evaporating Liquid Spray ................................................................................................. 547
15.1. Introduction ............................................................................................................................... 547
15.2. Prerequisites ............................................................................................................................... 547
15.3. Problem Description ................................................................................................................... 547
15.4. Setup and Solution ..................................................................................................................... 548
15.4.1. Preparation ........................................................................................................................ 548
15.4.2. Mesh .................................................................................................................................. 549
15.4.3. Solver ................................................................................................................................. 552
15.4.4. Models ............................................................................................................................... 552
15.4.5. Materials ............................................................................................................................ 555
15.4.6. Boundary Conditions .......................................................................................................... 556
15.4.7. Initial Solution Without Droplets ......................................................................................... 562
15.4.8. Creating a Spray Injection ................................................................................................... 572
15.4.9. Solution ............................................................................................................................. 579
15.4.10. Postprocessing ................................................................................................................. 589
15.5. Summary .................................................................................................................................... 599
15.6. Further Improvements ................................................................................................................ 599
16. Using the VOF Model ......................................................................................................................... 601
16.1. Introduction ............................................................................................................................... 601
16.2. Prerequisites ............................................................................................................................... 601
16.3. Problem Description ................................................................................................................... 601
16.4. Setup and Solution ..................................................................................................................... 603
16.4.1. Preparation ........................................................................................................................ 603
16.4.2. Reading and Manipulating the Mesh ................................................................................... 604
16.4.3. General Settings ................................................................................................................. 608
16.4.4. Models ............................................................................................................................... 610
16.4.5. Materials ............................................................................................................................ 611
16.4.6. Phases ................................................................................................................................ 613
16.4.7. Operating Conditions ......................................................................................................... 615
16.4.8. User-Defined Function (UDF) .............................................................................................. 616
16.4.9. Boundary Conditions .......................................................................................................... 617
16.4.10. Solution ........................................................................................................................... 620
16.4.11. Postprocessing ................................................................................................................. 627
16.5. Summary .................................................................................................................................... 631
16.6. Further Improvements ................................................................................................................ 631
17. Modeling Cavitation .......................................................................................................................... 633
17.1. Introduction ............................................................................................................................... 633
17.2. Prerequisites ............................................................................................................................... 633
17.3. Problem Description ................................................................................................................... 633
17.4. Setup and Solution ..................................................................................................................... 634
17.4.1. Preparation ........................................................................................................................ 634
17.4.2. Reading and Checking the Mesh ......................................................................................... 635
17.4.3. Solver Settings ................................................................................................................... 636
17.4.4. Models ............................................................................................................................... 637
17.4.5. Materials ............................................................................................................................ 639
17.4.6. Phases ................................................................................................................................ 642
17.4.7. Boundary Conditions .......................................................................................................... 645
17.4.8. Operating Conditions ......................................................................................................... 650
17.4.9. Solution ............................................................................................................................. 650
17.4.10. Postprocessing ................................................................................................................. 655
17.5. Summary .................................................................................................................................... 660
viii
Release 19.2 - © ANSYS, Inc. All rights reserved. - Contains proprietary and confidential information
of ANSYS, Inc. and its subsidiaries and affiliates.
相关推荐
2023年江西萍乡中考道德与法治真题及答案.doc
2012年重庆南川中考生物真题及答案.doc
2013年江西师范大学地理学综合及文艺理论基础考研真题.doc
2020年四川甘孜小升初语文真题及答案I卷.doc
2020年注册岩土工程师专业基础考试真题及答案.doc
2023-2024学年福建省厦门市九年级上学期数学月考试题及答案.doc
2021-2022学年辽宁省沈阳市大东区九年级上学期语文期末试题及答案.doc
2022-2023学年北京东城区初三第一学期物理期末试卷及答案.doc
2018上半年江西教师资格初中地理学科知识与教学能力真题及答案.doc
2012年河北国家公务员申论考试真题及答案-省级.doc
2020-2021学年江苏省扬州市江都区邵樊片九年级上学期数学第一次质量检测试题及答案.doc
2022下半年黑龙江教师资格证中学综合素质真题及答案.doc
