The document provides an overview and summary of enhancements to ANSYS' turbomachinery CFD system (TurboSystem) in release 14.5. Key updates include new capabilities in Vista design tools, BladeModeler, TurboGrid, and CFD-Post for turbomachinery analysis. The system provides an integrated workflow for simulations from 1D sizing to 3D CFD.

1. © 2012 ANSYS, Inc. June 24, 20131
ANSYS Turbomachinery CFD System
- 14.5 Update (BladeModeler, TurboGrid,
Vista, Vista-TF, CFD Solver, Turbo Post-processing)
Satish Patange
Convergence – UK, 13 June 2013

2. © 2012 ANSYS, Inc. June 24, 20132
• Turbo System Overview
• Vista Design Tool enhancements
• BladeModeler enhancements
• TurboGrid ATM template enhancements
• CFD-Post enhancements for turbo
• Beta Features
TurboSystem Release 14.5 Update

3. © 2012 ANSYS, Inc. June 24, 20133
R14 Turbo Overview

4. © 2012 ANSYS, Inc. June 24, 20134
• ANSYS offers a complete suite of software tools
for comprehensive turbomachinery design and
analysis
• ANSYS Turbo system
– Streamlined workflow using Integrated, easy to use
environment for all engineering simulations
1D Sizing Tools (“Meanline” Analysis)
2D Rapid “ThroughFlow” Analysis
Blade and Volute Geometry Design
Turbomachinery Specific Mesh Generation
3D CFD Analysis with Turbo Pre- and Post-
processing
Thermal and Structural Stress Analysis
Parameterization and Design Exploration
ANSYS TurboSystem v14.5
Turbine Cooling, Courtesy Wood
Group Heavy Industrial Turbines
AG, Switzerland

5. © 2012 ANSYS, Inc. June 24, 20135
ANSYS Workbench
Geometry Mesh Analysis
ANSYS
Meshing
Turbogrid
ICEM CFD
BladeModeler
BladeGen
DesignModeler
with
BladeEditor
ANSYS CFX
Vista TF
FLUENT
ANSYS FEA
Meanline Tools
Parameterization
Design Exploration
ANSYS Turbo system – R 14.5

6. © 2012 ANSYS, Inc. June 24, 20136
ANSYS Workbench Project Sheet
CFD Analysis FEA Simulation
FSI:
Bi-Directional
Coupling
FSI:
Uni-Directional
Coupling
BladeGen Turbogrid
Design Modeler
Parameterization
Design Exploration
ANSYS Turbo system Environment

7. © 2012 ANSYS, Inc. June 24, 20137
Turbomachinery Design and Analysis Using the
TurboSystem
ANSYS Vista CCD, CPD, RTD or
AFD
ANSYS Vista TF
ANSYS BladeEditor
ANSYS Mechanical
ANSYS BladeGen
CAD Package
ANSYS TurboGrid
ANSYS CFX/Fluent

8. © 2012 ANSYS, Inc. June 24, 20138
Vista Design Tool R14.5
Enhancements

9. © 2012 ANSYS, Inc. June 24, 20139
Vista CPD in Workbench
Vista CPD added as Component System

10. © 2012 ANSYS, Inc. June 24, 201310
Vista CPD: Operating Conditions
Specify pump duty and efficiency

11. © 2012 ANSYS, Inc. June 24, 201311
Vista CPD: Geometry
Specify geometric parameters such as hub diameter and blade angles
New: Optionally specify tip diameter

12. © 2012 ANSYS, Inc. June 24, 201312
Vista CPD: Results
Improved tabulated output

13. © 2012 ANSYS, Inc. June 24, 201313
Vista CPD in Workbench
Vista CPD input parameters available
directly in WB
Useful for parametric studies, or goal
driven optimization

14. © 2012 ANSYS, Inc. June 24, 201314
Vista CPD to Geometry
Create new pump impeller design in
BladeGen or BladeEditor in one step, for
further design optimization and analysis
Create new pump volute model and
mesh in one step

15. © 2012 ANSYS, Inc. June 24, 201315
New Vista TF System
From the Vista Design Tool, Create new Throughflow Analysis
System to automatically do the following :
• Create blade geometry (BladeEditor)
• Run throughflow analysis at design conditions (Vista TF)
• Generate analysis report (CFD-Post)

16. © 2012 ANSYS, Inc. June 24, 201316
BladeEditor R14.5
Enhancements

17. © 2012 ANSYS, Inc. June 24, 201317
Continued Project to Migrate and
Improve BladeGen features to
BladeEditor
• Model Full Turbo machine assembly
compared to single components in
BladeGen
• Create FEA and CFD geometries
using a single source
• Add geometry features like hub,
fillets, intakes, volutes …
• Parameterization and exposure to
Design Explorer
BladeEditor – Migration from BladeGen

18. © 2012 ANSYS, Inc. June 24, 201318
BladeEditor: Design Comparison
Create “snapshot” of existing design; use as
visual reference for subsequent design
changes
Reference design visible in meridional
sketches, angle/thickness views, blade-to-
blade view and 3D view

19. © 2012 ANSYS, Inc. June 24, 201319
Add support for Linux platforms for BladeEditor
Provide ability to run parametric updates in batch on
Linux clusters
Remote Solver Manager (RSM) support limited due to
DesignModeler constraint
BladeEditor: Linux Platform Support

20. © 2012 ANSYS, Inc. June 24, 201320
BladeEditor: Theta with LE/TE Beta
Create camberline Theta angle distributions
with Beta constraints at the leading and
trailing edges
Improved control of camberline shape:
constrain leading/trailing edge angles, wrap
angle simultaneously
Parameterize Beta values at leading/trailing
edges

21. © 2012 ANSYS, Inc. June 24, 201321
TurboGrid R14.5
Enhancements

22. © 2012 ANSYS, Inc. June 24, 201322
TurboGrid: ATM Topology Selection
ATM topology style can be previewed in Topology Viewer
User selectable topologies for specific blade styles

23. © 2012 ANSYS, Inc. June 24, 201323
TurboGrid: Blade Tip Size Factor
Improved control over tip mesh distribution (pressure side to suction side)

24. © 2012 ANSYS, Inc. June 24, 201324
On-going R&D project on supporting CAD geometry in
TurboGrid
Goals:
• Improve geometry fidelity
• Simplify connectivity to BladeEditor
• Provide path to ANSYS Meshing integration for
hybrid, multi-zone meshing
TurboGrid R&D: CAD Geometry Support

25. © 2012 ANSYS, Inc. June 24, 201325
TurboGrid: Enhanced ATM Templates
New templates added to improve
mesh resolution near rounded leading
and trailing edges
Original Template

26. © 2012 ANSYS, Inc. June 24, 201326
TurboGrid: Enhanced ATM Templates
New “Refined” templates added to
improve mesh resolution near
rounded leading and trailing edges
Refined Template

27. © 2012 ANSYS, Inc. June 24, 201327
Enhancement for Cut-off Blades
V14.5 V14.0

28. © 2012 ANSYS, Inc. June 24, 201328
TurboGrid: Option to Prefix Name to
Mesh Regions
New region name prefix
Workbench project schematic
• Specified in TurboGrid mesh properties panel
Mesh Export
• Name specified in Save Mesh panel
No name specified by default
• No change to default behaviour

29. © 2012 ANSYS, Inc. June 24, 201329
Ability to start TurboGrid with topology suspended (WB
context menu for TurboMesh) – avoids time spent
generating the mesh when changes are intended
Release of “Beta status” templates from R14.0
Release of region name prefix “Beta” feature from R14.0
Added WB preference for inlet/outlet block creation –
better support for mesh automation
TurboGrid: Misc.

30. © 2012 ANSYS, Inc. June 24, 201330
CFD-Post R14.5
Enhancements (Turbo)

31. © 2012 ANSYS, Inc. June 24, 201331
• New Results cell options to improve automation:
• Clear State – user can choose to erase the existing CFD-
Post state prior to editing or update (useful when report is
selected)
• Load Report – user can select (from drop-down list) specific
report to load in CFD-Post when editing or updating.
• Custom Report Path – optionally, a custom report may be
selected
• Publish Report – user can choose to have the report
published to html when the cell is updated
• Report Output Filename and Location – user can specify or
use defaults
CFD-Post Automatic Report Load

32. © 2012 ANSYS, Inc. June 24, 201332
R14.5 Advanced or Beta
Features

33. © 2012 ANSYS, Inc. June 24, 201333
New Turbo Fluid Flow System (Beta)
From Vista CCD, Create new Turbo Fluid Flow System to
automatically do the following :
• Create blade geometry (BladeEditor)
• Setup and run CFD analysis at design conditions (CFX)
• Generate analysis report (CFD-Post)

34. © 2012 ANSYS, Inc. June 24, 201334
• Automate hub geometry creation with cyclic
symmetry
• User specifies hub sketch and (native) blade
feature
• StageFluidZone feature required to specify the cut
line on the hub surface
• User can specify style of hub:
– Axial
– Radial
– Transitional
BladeEditor Sector Cut Feature (Beta)

35. © 2012 ANSYS, Inc. June 24, 201335
• BladeEditor supports parameterization of the blade
camberlines via script
• Useful for setup of blades with many profiles/parameters
• Email UK Support for details of the script interface
BladeEditor: Parameterize via script
(Beta)

36. © 2012 ANSYS, Inc. June 24, 201336
• Manual (Advanced) mode for
ATM Topology
– Enable under Edit > Options
> Enable Advanced Features
– Select Method > Manual
– Use to select custom ATM
templates
– Use to view existing
template topology id’s
(vertices and edges) for
advanced CCL properties
TurboGrid Custom Template Selection

37. © 2012 ANSYS, Inc. June 24, 201337
• Advanced Feature
• ATM supports having the periodic boundary cut along any
(appropriate) topology line defined within the template
• User can override the cut line by specifying a different vertex
• Choose vertex id from Topology Viewer
• Example:
– For Single Round Round template, want to use vertex 8
(see screenshot on previous slide)
– CCL changes
TOPOLOGY SET:
ATM Periodic Start Vertex = LECircleLow_TECircleHigh, 8
Conglomeration Retained Vertices List = LECircleLow_TECircleHigh, 13,
LECircleLow_TECircleHigh, 20, LECircleLow_TECircleHigh, 8
Override Conglomeration Retained Vertices List = True
END
TurboGrid Periodic Boundary Shift

38. © 2012 ANSYS, Inc. June 24, 201338
• Equalize theta in periodic boundary with inlet/outlet block to reduce mesh skew
• CCL parameters:
– Inlet Theta Equalization Factor (range 0.0-1.0, default 0.0)
– Inlet Theta Equalization Length Factor (range 0.01-1.0, default 1.0)
– Outlet Theta Equalization Factor (range 0.0-1.0, default 0.0)
– Outlet Theta Equalization Length Factor (range 0.01-1.0, default 1.0)
TurboGrid Inlet/Outlet Theta Equalization
(Beta)
Example:
MESH DATA:
Outlet Theta Equalization Factor = 1
Outlet Theta Equalization Length Factor = 0.5
END

39. © 2012 ANSYS, Inc. June 24, 201339
• TurboGrid can export structured CGNS mesh format from
File > Export Mesh...
• Choose File type: Structured CGNS (v3.1)
TurboGrid Structured CGNS Output (Beta)