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ANSYS CFD-Post User's Guide
ANSYS, Inc.
Release 14.0
Southpointe
275 Technology Drive
Canonsburg, PA 15317
November 2011
ANSYS, Inc. is
certified to ISO
9001:2008.
ansysinfo@ansys.com
http://www.ansys.com
(T) 724-746-3304
(F) 724-514-9494
Copyright and Trademark Information
© 2011 SAS IP, Inc. All rights reserved. Unauthorized use, distribution or duplication is prohibited.
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and feature names or trademarks are the property of their respective owners.
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Published in the U.S.A.
Table of Contents
Preface ...................................................................................................................................................... xxi
1. About this Manual ............................................................................................................................ xxi
2. Document Conventions ................................................................................................................... xxii
2.1. Spelling Conventions .............................................................................................................. xxiii
3. Accessing Help ................................................................................................................................ xxiii
4. Contact Information ........................................................................................................................ xxiv
1. Overview of CFD-Post
............................................................................................................................. 1
1.1. CFD-Post Features and Functionality ................................................................................................. 1
1.2. Advanced Features ........................................................................................................................... 2
1.3. Next Steps... ...................................................................................................................................... 2
2. Starting CFD-Post
.................................................................................................................................... 3
2.1. Starting CFD-Post with the ANSYS CFX Launcher ............................................................................... 3
2.1.1. Valid Syntax in CFD-Post ........................................................................................................... 4
2.2. Starting CFD-Post from the Command Line ....................................................................................... 4
2.2.1. Optional Command Line Arguments ........................................................................................ 4
2.3. Setting CFD-Post Operation Through Environment Variables ............................................................. 6
2.4. Running in Batch Mode ..................................................................................................................... 9
2.4.1. Example: Pressure Calculation on Multiple Files using Batch Mode ............................................ 9
3. CFD-Post Graphical Interface
................................................................................................................ 11
3.1. Graphical Objects ........................................................................................................................... 12
3.1.1. Creating and Editing New Objects .......................................................................................... 12
3.1.2. Selecting Objects ................................................................................................................... 13
3.1.3. Object Visibility ...................................................................................................................... 13
3.2. Common Outline View Shortcuts .................................................................................................... 14
3.3. Details Views .................................................................................................................................. 14
3.4. Outline Workspace .......................................................................................................................... 15
3.4.1. Outline Tree View Shortcuts .................................................................................................... 16
3.4.2. Outline Details View ............................................................................................................... 17
3.4.2.1. Geometry Details Tab .................................................................................................... 17
3.4.2.1.1. Selecting Domains ................................................................................................ 17
3.4.2.2. Color Details Tab ............................................................................................................ 17
3.4.2.2.1. Mode: Constant ..................................................................................................... 17
3.4.2.2.2. Mode: Variable and Use Plot Variable ..................................................................... 17
3.4.2.2.3. Range ................................................................................................................... 18
3.4.2.2.4. Hybrid/Conservative ............................................................................................. 18
3.4.2.2.5. Color Scale ............................................................................................................ 18
3.4.2.2.6. Color Map ............................................................................................................. 18
3.4.2.2.6.1. Accessing the CFD-Post Color Map Editor ...................................................... 18
3.4.2.2.7. Undefined Color ................................................................................................... 19
3.4.2.3. Symbol Details Tab ........................................................................................................ 19
3.4.2.3.1. Symbol ................................................................................................................. 19
3.4.2.3.2. Symbol size .......................................................................................................... 19
3.4.2.4. Render Details Tab ......................................................................................................... 19
3.4.2.4.1. Show Faces ........................................................................................................... 19
3.4.2.4.2. Show Faces: Transparency ..................................................................................... 20
3.4.2.4.3. Show Faces: Draw Mode ........................................................................................ 20
3.4.2.4.4. Show Faces: Face Culling ....................................................................................... 20
3.4.2.4.5. Show Faces: Lighting ............................................................................................. 21
3.4.2.4.6. Show Faces: Specular Lighting ............................................................................... 22
3.4.2.4.7. Show Mesh Lines .................................................................................................. 22
Release 14.0 - © SAS IP, Inc. All rights reserved. - Contains proprietary and confidential information
of ANSYS, Inc. and its subsidiaries and affiliates.
iii
ANSYS CFD-Post User's Guide
3.4.2.4.8. Show Mesh Lines: Edge Angle ............................................................................... 22
3.4.2.4.9. Show Mesh Lines: Line Width ................................................................................. 22
3.4.2.4.10. Show Mesh Lines: Color Mode ............................................................................. 22
3.4.2.4.11. Show Mesh Lines: Line Color ................................................................................ 22
3.4.2.4.12. Apply Texture ...................................................................................................... 22
3.4.2.4.13. Apply Texture: Predefined Textures ...................................................................... 22
3.4.2.4.14. Apply Texture: Custom Textures ........................................................................... 22
3.4.2.4.15. Apply Texture: Texture Examples .......................................................................... 23
3.4.2.5. View Details Tab ............................................................................................................ 24
3.4.2.5.1. Apply Rotation Check Box ..................................................................................... 24
3.4.2.5.1.1. Method, Axis, From, To .................................................................................. 24
3.4.2.5.1.2. Angle ........................................................................................................... 24
3.4.2.5.2. Apply Translation Check Box ................................................................................. 24
3.4.2.5.3. Apply Reflection/Mirroring Check Box ................................................................... 24
3.4.2.5.4. Apply Scale Check Box .......................................................................................... 24
3.4.2.5.5. Apply Instancing Transform Check Box .................................................................. 24
3.4.3. Case Branch ........................................................................................................................... 24
3.4.3.1. Domain Details View ...................................................................................................... 25
3.4.3.1.1. Instancing Details Tab ........................................................................................... 25
3.4.3.1.2. Info Details Tab ..................................................................................................... 25
3.4.3.2. Boundary and Subdomain ............................................................................................. 25
3.4.3.3. Mesh Regions ................................................................................................................ 26
3.4.4. User Locations and Plots ......................................................................................................... 26
3.4.4.1. Wireframe ..................................................................................................................... 26
3.4.4.1.1. Wireframe: Definition Tab ...................................................................................... 26
3.4.4.1.2. Wireframe: View Tab .............................................................................................. 27
3.4.5. Report ................................................................................................................................... 27
3.4.5.1. Omitting Default Report Sections .................................................................................. 30
3.4.5.2. Changing the Default Report Sections ........................................................................... 30
3.4.5.3. Adding New Sections to a Report ................................................................................... 31
3.4.5.4. Report Templates .......................................................................................................... 31
3.4.5.4.1. Turbo Report Templates ........................................................................................ 32
3.4.5.4.1.1. Procedures for Using Turbo Reports when Turbomachinery Data is Miss-
ing ............................................................................................................................... 35
3.4.5.4.2. Choosing a Turbo Report ....................................................................................... 35
3.4.5.5. Creating, Viewing, and Publishing Reports ...................................................................... 37
3.4.5.5.1. Report Object ....................................................................................................... 38
3.4.5.5.1.1. Figures: File Type .......................................................................................... 38
3.4.5.5.1.2. Figures: Figure Size ....................................................................................... 38
3.4.5.5.1.3. Figures: Width and Height ............................................................................. 38
3.4.5.5.1.4. Figures: Fit All Figures in the Viewport Before Generation Check Box .............. 38
3.4.5.5.1.5. Charts: File Type ........................................................................................... 38
3.4.5.5.1.6. Charts: Chart Size ......................................................................................... 38
3.4.5.5.1.7. Charts: Width and Height .............................................................................. 38
3.4.5.5.2. Title Page Object ................................................................................................... 38
3.4.5.5.2.1. Custom Logo Check Box ............................................................................... 38
3.4.5.5.2.2. Custom Logo ............................................................................................... 38
3.4.5.5.2.3. ANSYS Logo Check Box ................................................................................. 38
3.4.5.5.2.4. Title ............................................................................................................. 39
3.4.5.5.2.5. Author ......................................................................................................... 39
3.4.5.5.2.6. Current Date Check Box ................................................................................ 39
3.4.5.5.2.7. Table of Contents Check Box ......................................................................... 39
Release 14.0 - © SAS IP, Inc. All rights reserved. - Contains proprietary and confidential information
of ANSYS, Inc. and its subsidiaries and affiliates.
iv
ANSYS CFD-Post User's Guide
3.4.5.5.2.8. Table of Contents Check Box: Captions in Table of Contents Check Box ........... 39
3.4.5.5.3. File Report Object ................................................................................................. 39
3.4.5.5.4. Mesh Report Object .............................................................................................. 39
3.4.5.5.5. Physics Report Object ........................................................................................... 39
3.4.5.5.6. Solution Report Object ......................................................................................... 39
3.4.5.5.7. Adding Objects to the Report ................................................................................ 40
3.4.5.5.8. Controlling the Content in the Report .................................................................... 40
3.4.5.5.9. Refreshing the Report ........................................................................................... 40
3.4.5.5.10. Viewing the Report ............................................................................................. 41
3.4.5.5.11. Publishing the Report ......................................................................................... 41
3.4.5.5.11.1. Format ....................................................................................................... 41
3.4.5.5.11.2. File ............................................................................................................. 41
3.4.5.5.11.3. Save Images in Separate Directory Check Box .............................................. 41
3.4.5.5.11.4. Generate CFD Viewer files (CVF) for Figures Check Box ................................ 41
3.4.5.5.11.5. More Options Button .................................................................................. 41
3.4.6. Display Properties and Defaults .............................................................................................. 42
3.5. Variables Workspace ....................................................................................................................... 42
3.5.1. Variables Tree View ................................................................................................................. 42
3.5.2. Variables Details View ............................................................................................................. 43
3.5.2.1. Fundamental Variables .................................................................................................. 44
3.5.2.1.1. Saving Variables Back to the Results File ................................................................ 44
3.5.2.2. Radius and Theta ........................................................................................................... 45
3.5.2.3. Boundary-Value-Only Variables ...................................................................................... 45
3.5.2.4. User Variables ................................................................................................................ 45
3.5.3. Variables: Example .................................................................................................................. 46
3.6. Expressions Workspace ................................................................................................................... 47
3.6.1. Expressions Tree View ............................................................................................................. 48
3.6.2. Expressions Workspace: Expressions Details View .................................................................... 48
3.6.2.1. Expression Definition Tab ............................................................................................... 48
3.6.2.2. Plot Expression Tab ........................................................................................................ 49
3.6.2.3. Evaluate Expression Tab ................................................................................................. 49
3.6.3. Expressions Workspace: Example ............................................................................................ 50
3.6.3.1. Further Expressions ....................................................................................................... 50
3.7. Calculators Workspace .................................................................................................................... 51
3.8. Turbo Workspace ............................................................................................................................ 51
4. CFD-Post in ANSYS Workbench
............................................................................................................. 53
4.1. The ANSYS Workbench Interface ..................................................................................................... 53
4.1.1. Toolbox .................................................................................................................................. 54
4.1.2. Project Schematic: Introduction .............................................................................................. 55
4.1.3. View Bar ................................................................................................................................. 55
4.1.4. Properties View ...................................................................................................................... 56
4.1.5. Files View ............................................................................................................................... 56
4.1.6. Sidebar Help .......................................................................................................................... 57
4.1.7. Shortcuts (Context Menu Options) .......................................................................................... 57
4.2. File Operation Differences ............................................................................................................... 57
4.3. An Introduction to Workflow within ANSYS CFX in ANSYS Workbench .............................................. 57
4.4. Using ANSYS Workbench Journaling and Scripting with CFD-Post .................................................... 61
4.4.1. Acquiring a Journal File with CFD-Post in ANSYS Workbench ................................................... 61
4.4.1.1. Journal of an Operation That Creates a Plane in CFD-Post ............................................... 61
4.4.2. Scripting ................................................................................................................................ 62
4.4.2.1. Example: Using a Script to Change an Existing Locator .................................................... 63
4.5. Tips on Using ANSYS Workbench ..................................................................................................... 63
Release 14.0 - © SAS IP, Inc. All rights reserved. - Contains proprietary and confidential information
of ANSYS, Inc. and its subsidiaries and affiliates.
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