bladegen教程.pdf

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TurboSystem

Table of Contents

Introduction to TurboSystem

TurboSystem Workflows

Geometry Sources

Mesh Sources

Solution Sources

Examples of TurboSystem Workflows

Usage Notes for Specific Workflows

Tips on using ANSYS Workbench

Using BladeGen

Changing the Active Document in BladeGen

Using BladeEditor

Loading versus Importing a BladeGen Geometry

Restarting a BladeEditor Session

Modifying Spline Curves

Adding a Hub Fillet to an Imported BladeGen Geometry

Creating a Full 360-Degree Fluid Zone for an Impeller

Using ANSYS TurboGrid

Using ANSYS CFX

Connecting from a Turbo Mesh Cell

Changing the Geometry

Quick Pump Tutorial

ANSYS BladeGen

ANSYS BladeEditor

The BladeEditor User Interface

Tree View and Details View

Contour Sketch Management

BladeEditor Toolbars

Feature Creation Toolbar

Active Selection Toolbar

Display Control Toolbar

Angle and Thickness Views

Angle View

Thickness View

User Preferences and Properties

Blade Editing Features

Flow Path Contour Creation

FlowPath Feature

Flow Cut

Camberline/Thickness Definition Feature

Importing and Exporting Angle Definition Data

Importing and Exporting Thickness Definition Data

Converting Curves to Bezier or Spline

Converting Angle Definition Data

Forcing Interpolation of the Definition Data

Blade Feature

Splitter Feature

Cloned Splitter

Independent Splitter

Stage Fluid Zone Feature

Throat Area Feature

Importing Blades from ANSYS BladeGen

Loading and Modifying Blades from ANSYS BladeGen

Using and Exporting Blades

Export to Vista TF (.geo)

Export as Meanline Data (.rtzt file)

Export to ANSYS TurboGrid

Configuring the BladeModeler License

ANSYS TurboGrid

ANSYS CFX-Pre

ANSYS CFD-Post

Vista TF

Vista TF User's Guide

Vista TF Setup Cell Properties

Customizing the Vista TF Template Files

Vista TF Context Menu Commands

Vista TF Reference Guide

Running Vista TF from the Command Line

Input and Output Data Files for Vista TF

The Auxiliary File with the Default Name: vista_tf.fil

Overview of Input Files

Overview of Output Files

Specification of the Control Data File (*.con)

Specification of the Geometry Data File (*.geo)

Specification of Aerodynamic Data File (*.aer)

Specification of Correlations Data File (*.cor)

Specification of the Output Data File (*.out)

Specification of the Text Data Files (*.txt)

Specification of the CFD-Post Output Files (*.csv)

Specification of Convergence History Data File (*.hst)

Software Limitations

Streamline Curvature Throughflow Theory

The Equations

The Mean Stream Surface

The Grid

Ductflow and Throughflow

Iterative Solution Procedure

Initial Estimate

Radial Equilibrium Equation

Combination of Velocity Gradient and Continuity Equations

Relaxation Factors

Streamline curvature

Equations for Enthalpy and Angular Momentum

Boundary Conditions

Empirical Data

Blade-to-blade Solution

Spanwise Mixing

Streamline Curvature Throughflow Theory: Bibliography

Appendices

Appendix A: A Note on Sign Convention for Angles and Velocities

Definition of Blade Lean Angles

Definition of Meridional Streamline Inclination Angle or Pitch Angle

Definition of Blade Angle

Appendix B: Example of a Control Data File (*.con)

Appendix C: Example of a Geometry Data File (*.geo) for a Radial Impeller

Appendix D: Example of an Aerodynamic Data File (*.aer)

Appendix E: Examples of Correlations Data Files (*.cor)

Appendix F: Troubleshooting

Input-output Errors

Convergence

Reverse Flow

Choking

Computational Grid

Other Numerical Issues

Appendix G: The RTZTtoGEO Program

Index

TurboSystem ANSYS, Inc. Southpointe 275 Technology Drive Canonsburg, PA 15317 ansysinfo@ansys.com http://www.ansys.com (T) 724-746-3304 (F) 724-514-9494 Release 12.0 April 2009 ANSYS, Inc. is certified to ISO 9001:2008.

Copyright and Trademark Information © 2009 SAS IP, Inc. All rights reserved. Unauthorized use, distribution or duplication is prohibited. ANSYS, ANSYS Workbench, Ansoft, AUTODYN, EKM, Engineering Knowledge Manager, CFX, FLUENT, HFSS 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 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. Disclaimer Notice THIS ANSYS SOFTWARE PRODUCT AND PROGRAM DOCUMENTATION INCLUDE TRADE SECRETS AND ARE CONFIDENTIAL AND PROPRIETARY PRODUCTS OF ANSYS, INC., ITS SUBSIDIARIES, OR LICENSORS. The software products and document- ation are furnished by ANSYS, Inc., its subsidiaries, or affiliates under a software license agreement that contains pro- visions 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. is certified to ISO 9001:2008. U.S. Government Rights For U.S. Government users, except as specifically granted by the ANSYS, Inc. software license agreement, the use, du- plication, 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, please contact ANSYS, Inc. Published in the U.S.A.

Table of Contents Introduction to TurboSystem ..................................................................................................................... 1 TurboSystem Workflows ............................................................................................................................. 3 Geometry Sources .................................................................................................................................. 3 Mesh Sources ......................................................................................................................................... 3 Solution Sources ..................................................................................................................................... 3 Examples of TurboSystem Workflows ...................................................................................................... 4 Usage Notes for Specific Workflows ......................................................................................................... 5 Tips on using ANSYS Workbench ....................................................................................................... 5 Using BladeGen ................................................................................................................................ 6 Changing the Active Document in BladeGen ............................................................................... 6 Using BladeEditor ............................................................................................................................. 6 Loading versus Importing a BladeGen Geometry ......................................................................... 6 Restarting a BladeEditor Session ................................................................................................. 7 Modifying Spline Curves ............................................................................................................. 7 Adding a Hub Fillet to an Imported BladeGen Geometry ............................................................. 7 Creating a Full 360-Degree Fluid Zone for an Impeller .................................................................. 8 Using ANSYS TurboGrid .................................................................................................................... 8 Using ANSYS CFX .............................................................................................................................. 8 Connecting from a Turbo Mesh Cell ............................................................................................ 9 Changing the Geometry ............................................................................................................. 9 Quick Pump Tutorial ............................................................................................................................... 9 ANSYS BladeGen ....................................................................................................................................... 13 ANSYS BladeEditor ................................................................................................................................... 19 The BladeEditor User Interface .............................................................................................................. 19 Tree View and Details View .............................................................................................................. 19 Contour Sketch Management ......................................................................................................... 20 BladeEditor Toolbars ....................................................................................................................... 21 Feature Creation Toolbar ........................................................................................................... 21 Active Selection Toolbar ............................................................................................................ 23 Display Control Toolbar ............................................................................................................. 24 Angle and Thickness Views ............................................................................................................. 24 Angle View ............................................................................................................................... 24 Thickness View ......................................................................................................................... 25 User Preferences and Properties ...................................................................................................... 25 Blade Editing Features .......................................................................................................................... 26 Flow Path Contour Creation ............................................................................................................ 27 FlowPath Feature ............................................................................................................................ 28 Flow Cut ................................................................................................................................... 29 Camberline/Thickness Definition Feature ........................................................................................ 30 Importing and Exporting Angle Definition Data ........................................................................ 32 Importing and Exporting Thickness Definition Data ................................................................... 33 Converting Curves to Bezier or Spline ........................................................................................ 33 Converting Angle Definition Data ............................................................................................. 34 Forcing Interpolation of the Definition Data .............................................................................. 34 Blade Feature ................................................................................................................................. 34 Splitter Feature ............................................................................................................................... 36 Cloned Splitter ......................................................................................................................... 36 Independent Splitter ................................................................................................................ 36 Stage Fluid Zone Feature ................................................................................................................ 38 Throat Area Feature ........................................................................................................................ 39 Release 12.0 - © 2009 SAS IP, Inc. All rights reserved. - Contains proprietary and confidential information of ANSYS, Inc. and its subsidiaries and affiliates. iii

TurboSystem Importing Blades from ANSYS BladeGen ............................................................................................... 41 Loading and Modifying Blades from ANSYS BladeGen ........................................................................... 45 Using and Exporting Blades .................................................................................................................. 45 Export to Vista TF (.geo) .................................................................................................................. 46 Export as Meanline Data (.rtzt file) ................................................................................................... 47 Export to ANSYS TurboGrid ............................................................................................................. 48 Configuring the BladeModeler License .................................................................................................. 50 ANSYS TurboGrid ...................................................................................................................................... 53 ANSYS CFX-Pre ......................................................................................................................................... 57 ANSYS CFD-Post ........................................................................................................................................ 59 Vista TF ..................................................................................................................................................... 61 Vista TF User's Guide ............................................................................................................................. 61 Vista TF Setup Cell Properties .......................................................................................................... 62 Customizing the Vista TF Template Files ........................................................................................... 66 Vista TF Context Menu Commands .................................................................................................. 67 Vista TF Reference Guide ....................................................................................................................... 68 Running Vista TF from the Command Line ....................................................................................... 68 Input and Output Data Files for Vista TF ........................................................................................... 69 The Auxiliary File with the Default Name: vista_tf.fil ................................................................... 69 Overview of Input Files ............................................................................................................. 70 Overview of Output Files .......................................................................................................... 72 Specification of the Control Data File (*.con) .............................................................................. 74 Specification of the Geometry Data File (*.geo) .......................................................................... 83 Specification of Aerodynamic Data File (*.aer) ............................................................................ 91 Specification of Correlations Data File (*.cor) ............................................................................ 101 Specification of the Output Data File (*.out) ............................................................................. 111 Specification of the Text Data Files (*.txt) ................................................................................. 114 Specification of the CFD-Post Output Files (*.csv) ..................................................................... 116 Specification of Convergence History Data File (*.hst) .............................................................. 117 Software Limitations ..................................................................................................................... 118 Streamline Curvature Throughflow Theory .................................................................................... 118 The Equations ......................................................................................................................... 119 The Mean Stream Surface ....................................................................................................... 119 The Grid ................................................................................................................................. 120 Ductflow and Throughflow ..................................................................................................... 121 Iterative Solution Procedure .................................................................................................... 121 Initial Estimate ........................................................................................................................ 122 Radial Equilibrium Equation .................................................................................................... 122 Combination of Velocity Gradient and Continuity Equations .................................................... 122 Relaxation Factors ................................................................................................................... 123 Streamline curvature .............................................................................................................. 123 Equations for Enthalpy and Angular Momentum ..................................................................... 123 Boundary Conditions .............................................................................................................. 123 Empirical Data ........................................................................................................................ 124 Blade-to-blade Solution .......................................................................................................... 124 Spanwise Mixing .................................................................................................................... 124 Streamline Curvature Throughflow Theory: Bibliography ......................................................... 125 Appendices .................................................................................................................................. 126 Appendix A: A Note on Sign Convention for Angles and Velocities ............................................ 127 Definition of Blade Lean Angles ......................................................................................... 128 Definition of Meridional Streamline Inclination Angle or Pitch Angle .................................. 129 Definition of Blade Angle .................................................................................................. 129 iv Release 12.0 - © 2009 SAS IP, Inc. All rights reserved. - Contains proprietary and confidential information of ANSYS, Inc. and its subsidiaries and affiliates.

TurboSystem Appendix B: Example of a Control Data File (*.con) ................................................................... 130 Appendix C: Example of a Geometry Data File (*.geo) for a Radial Impeller ............................... 130 Appendix D: Example of an Aerodynamic Data File (*.aer) ........................................................ 132 Appendix E: Examples of Correlations Data Files (*.cor) ............................................................ 133 Appendix F: Troubleshooting .................................................................................................. 138 Input-output Errors ........................................................................................................... 139 Convergence .................................................................................................................... 140 Reverse Flow .................................................................................................................... 142 Choking ........................................................................................................................... 142 Computational Grid .......................................................................................................... 144 Other Numerical Issues ..................................................................................................... 145 Appendix G: The RTZTtoGEO Program ..................................................................................... 147 Index ........................................................................................................................................................ 151 Release 12.0 - © 2009 SAS IP, Inc. All rights reserved. - Contains proprietary and confidential information of ANSYS, Inc. and its subsidiaries and affiliates. v

Introduction to TurboSystem TurboSystem is a set of software applications and software features for designing turbomachinery in the ANSYS Workbench environment. It consists of the following components: • ANSYS BladeGen: a geometry creation tool that is specialized for turbomachinery blades. For details, see "ANSYS BladeGen" (p. 13). • ANSYS DesignModeler: a general purpose geometry preparation tool that is integrated in ANSYS Workbench. This CAD-like program is primarily used to prepare CAD geometry models for analysis by other ANSYS Workbench based tools. For details, see DesignModeler Help. • ANSYS BladeEditor: a plugin for DesignModeler for creating blade geometry. ANSYS BladeEditor provides the geometry link between BladeGen and DesignModeler, and therefore links BladeGen with other ANSYS Workbench based applications. For details, see "ANSYS BladeEditor" (p. 19). • ANSYS TurboGrid: a meshing tool that is specialized for CFD analyses of turbomachinery blade rows. For details, see "ANSYS TurboGrid" (p. 53). • ANSYS CFX-Pre: a general-purpose CFD preprocessor that has a turbomachinery setup wizard for facilit- ating the setup of turbomachinery CFD simulations. For details, see "ANSYS CFX-Pre" (p. 57). • ANSYS CFD-Post: a general-purpose CFD postprocessor that has features for facilitating the post-pro- cessing of turbomachinery CFD simulations. For details, see "ANSYS CFD-Post" (p. 59). • Vista TF: a streamline curvature throughflow program for the analysis of turbomachinery. This program enables you to rapidly evaluate radial blade rows (pumps, compressors and turbines) at the early stages of the design. For details, see "Vista TF" (p. 61). For information about using TurboSystem in various workflows, see "TurboSystem Workflows" (p. 3). Release 12.0 - © 2009 SAS IP, Inc. All rights reserved. - Contains proprietary and confidential information of ANSYS, Inc. and its subsidiaries and affiliates. 1

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