2012 ANSYS, Inc. June 24, 2013 1

ANSYS Turbomachinery CFD System - 14.5 Update (BladeModeler, TurboGrid, Vista, Vista-TF, CFD Solver, Turbo Post-processing)

Satish Patange

Convergence UK, 13 June 2013

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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

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R14 Turbo Overview

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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

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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

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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

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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

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Vista Design Tool R14.5 Enhancements

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Vista CPD in Workbench

Vista CPD added as Component System

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Vista CPD: Operating Conditions

Specify pump duty and efficiency

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Vista CPD: Geometry

Specify geometric parameters such as hub diameter and blade angles

New: Optionally specify tip diameter

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Vista CPD: Results

Improved tabulated output

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Vista CPD in Workbench

Vista CPD input parameters available directly in WB

Useful for parametric studies, or goal driven optimization

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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

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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)

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BladeEditor R14.5 Enhancements

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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

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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

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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

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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

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TurboGrid R14.5 Enhancements

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TurboGrid: ATM Topology Selection

ATM topology style can be previewed in Topology Viewer

User selectable topologies for specific blade styles

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TurboGrid: Blade Tip Size Factor

Improved control over tip mesh distribution (pressure side to suction side)

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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

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TurboGrid: Enhanced ATM Templates

New templates added to improve mesh resolution near rounded leading and trailing edges

Original Template

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TurboGrid: Enhanced ATM Templates

New Refined templates added to improve mesh resolution near rounded leading and trailing edges

Refined Template

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Enhancement for Cut-off Blades

V14.5 V14.0

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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

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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.

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CFD-Post R14.5 Enhancements (Turbo)

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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

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R14.5 Advanced or Beta Features

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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)

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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)

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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)

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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 ids (vertices and edges) for advanced CCL properties

TurboGrid Custom Template Selection

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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

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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

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TurboGrid can export structured CGNS mesh format from File > Export Mesh...

Choose File type: Structured CGNS (v3.1)

TurboGrid Structured CGNS Output (Beta)