BladeModeler 12.0 Lecture 1 Introduction

1-1ANSYS, Inc. Proprietary© 2009 ANSYS, Inc. All rights reserved.

April 30, 2009Inventory #002693

Chapter 1

Introduction

BladeModeler

Introduction



Training ManualANSYS Software for Turbomachinery

• ANSYS offers a complete suite of software tools for comprehensive turbomachinery design and analysis

– 1D sizing (“meanline” tools)

– 2D rapid “throughflow” analysis

– 3D CFD with turbo pre- and post-processing

– Blade geometry design tools

– Turbomachinery specific mesh generation

– Integrated thermal and stress analysis (“FSI”)

• ANSYS tools have been widely used by leading turbomachinery manufacturers for many years

Introduction



Training ManualANSYS Turbo System 12 Workflow

ANSYS Workbench

GeometryGeometry MeshMesh AnalysisAnalysisTurboGridTurboGrid

Unified MeshUnified MeshBladeModelerBladeModeler

BladeGenBladeGen

DM with DM with BladeEditorBladeEditor

CFXCFX

ANSYSANSYS

FLUENTFLUENT

Vista TFVista TF

Meanline ToolsMeanline Tools

CFX-MeshCFX-Mesh

TGridTGrid

ICEM CFDICEM CFD

OthersOthers

Introduction



Training ManualTurboSystem: CFD Simulation

BladeModeler

TurboGrid

TurboPre

CFX Solver

TurboPost

Introduction



Training ManualWhy Use BladeModeler?

• BladeModeler is a specialized, easy-to-use tool for the rapid 3-D design of rotating machinery components

Introduction



Training ManualWhy Use BladeModeler?


BladeModeler

AutoCAD

Pro/ENGINEER

IGES

Introduction



Training ManualBladeModeler

• BladeModeler consists of three components:– BladeGen

• Initial Sizing Tools– Vista AFD – Vista CCD – Vista CPD – Vista RTD

• Blade design for a single stage

– DesignModeler• CAD tool to add additional features to blade• Fillets, blade trimming, shroud covers• Generation of fluid volume• Creation of scrolls, housings, volutes, etc.

– BladeEditor• Eventual replacement for BladeGen

– Many functions available in BladeGen now available in BladeEditor

• DesignModeler add-on that provides seamless geometry connection between BladeGen and DesignModeler

• Blade designs of multiple stages can be created at once

Introduction




• BladeGen– Define machine geometry

• Meridional flow path definition• Blade definition on spanwise layers

– Leading/Trailing Edge definition

– Blade Trimming

– Report generation

– Geometry modification

– User can start from• Built in 1D sizing tools• Templates• Data Files

Introduction




• BladeGen– Four initial sizing tools included

1) Vista AFD (Axial Fan Design)2) Vista CCD (Centrifugal Compressor Design)3) Vista CPD (Centrifugal Pump Design)4) Vista RTD (Radial Turbine Design)

– Input performance requirements to create a meridional flow path and blade design

– Covered separately in Appendices

Introduction



Training Manual

• Input Duty, Efficiency correlations, gas properties (real gasses available)

Vista CCD: Duty and Aerodynamic Data

Introduction




• DesignModeler– A 3D CAD modeler with analysis modeling goals– Performs unique geometry modification capabilities for simulation:

• Fluid Simulations:– Feature Simplification– Quickly and easily create fluid volume from solid part

• Enclosure Operation• Fill Operation

• Mechanical Simulations– Feature Simplification– Spot Welds– Split Surfaces– Surface Model Extraction– Planar Body Extraction– Beam Modeling

• Parametric Models– Dimensions and other parameters can be exposed in Workbench for design exploration

• Bi-directional CAD associativity with all major CAD vendors– No need for third party translators

– Can update CAD model from Workbench

Introduction




• DesignModeler– Automatic Fluid

Zone Creation

– Create assemblies including “non-turbo” components

Introduction




Revolved Trim

Blade Fillets

Shroud Cover

• DesignModeler–Additional modifications to

turbomachinery components

Introduction




• BladeEditor– DesignModeler Add-In

• Create bladed components– Create meridional flow path for multiple stages– Create blades for multiple stages

• Eventually all BladeGen functionality will be migrated to BladeEditor• Some parameters can be exposed in Workbench for design

exploration/optimization

• Provides geometry connection between BladeGen and DesignModeler• Allows for the import of multiple BladeGen models into one DesignModeler

session• Allows for easy editing of blade geometry• Components from another CAD source can be imported and combined with

blade geometry (i.e. A volute)

Introduction




BladeGen

DesignModeler

BladeEditor

• BladeEditor– Can import or load .bgd file created

from BladeGen into DesignModeler

Introduction




• VistaTF (Through-Flow)– Separate product from

BladeModeler– Streamline curvature code

(2D) for rapid analysis of blade

– Uses CFD Post for post-processing

– Covered in Appendix

Introduction



Training ManualVista TF - Through-Flow

• Integration of through-flow solver – VISTA-TF

– PCA Engineers, Lincoln

• Rapid blade row analysis• Complementary to CFD simulation

– Flow path optimisation

– Initial condition

Blade Rows

Interface Locations Automatically

Computed for Fluid Zone Creation

B1B2

B3B4

Inlet Contour

Outlet Contour

Hub Contour

Shroud Contour

Layer Contours

Introduction



Training ManualVista TF - Through-Flow

• Through-flow captures the key features

– Velocity gradients

• CFD adds more precise details– Purer prediction of performance

– Clearance flows

• Use through-flow to ‘seed’ CFD– Reduced run-times

• Mixed Flow Pump Stage

Introduction





– 1D sizing (“meanline” tools)• Vista AFD• Vista CCD• Vista CPD• Vista RTD

– 2D rapid “through-flow” analysis• Vista TF

– Blade geometry design tools• BladeGen• BladeEditor• DesignModeler

BladeModeler 12.0 Lecture 1 Introduction

Documents

rotating machinery

vista tf

multiple stages

vista ccd

blade fillets

rights reserved

meanline tools

training manual