BladeModeler 12.0 Lecture 1 Introduction

Chapter 1 Introduction

BladeModeler

Introduction 

ANSYS Software for Turbomachinery •

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

1D sizing (“meanline” tools)

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2D rapid “throughflow” analysis

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Training Manual 

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 

ANSYS Turbo System 12 Workflow

Geometry BladeModeler Meanline Tools BladeGen DM with BladeEditor

Training Manual 

Mesh

Analysis

TurboGrid

ANSYS

Unified Mesh

CFX

CFX-Mesh TGrid ICEM CFD Others

ANSYS Workbench

FLUENT Vista TF

Introduction 

TurboSystem: CFD Simulation

Training Manual 

BladeModeler  TurboGrid  TurboPre  CFX Solver  TurboPost 

Introduction 

Why Use BladeModeler? •

Training Manual 

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

Introduction 

Why Use BladeModeler? •

Training Manual 

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

AutoCAD

IGES

BladeModeler

Pro/ENGINEER

Introduction 

BladeModeler •

Training Manual 

BladeModeler consists of three components:  –

BladeGen •

Initial Sizing Tools  –

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Blade design for a single stage

DesignModeler •

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Vista AFD Vista CCD Vista CPD Vista RTD

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  –

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Many functions available in BladeGen now available in i n BladeEditor

DesignModeler add-on that provides seamless geometry connection between BladeGen and DesignModeler Blade designs of multiple stages can be created at once

Introduction 

BladeModeler •

BladeGen  –

Define machine geometry •

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Meridional flow path definition Blade definition on spanwise layers

Leading/Trailing Edge definition Blade Trimming Report generation Geometry modification User can start from •

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Built in 1D sizing tools Templates Data Files

Training Manual 

Introduction 

BladeModeler •

Training Manual 

BladeGen  –

Four initial sizing tools included 1) 2) 3) 4)

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Vista AFD (Axial Fan Design) Vista CCD (Centrifugal Compressor Design) Vista CPD (Centrifugal Pump Design) Vista RTD (Radial Turbine Design)

Input performance requirements to create a meridional flow path and blade design Covered separately in Appendices

Introduction 

Vista CCD: Duty and Aerodynamic Data •

Training Manual 

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

Introduction 

BladeModeler •

Training Manual 

DesignModeler  –

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

Fluid Simulations:  –

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Feature Simplification Quickly and easily create fluid volume from solid soli d part •

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Mechanical Simulations  –

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Feature Simplification Spot Welds Split Surfaces Surface Model Extraction Planar Body Extraction Beam Modeling

Parametric Models  –

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Enclosure Operation Fill Operation

Dimensions and other parameters can be exposed in Workbench for design exploration

Bi-directional CAD associativity with all major CAD vendors  –

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No need for third party translators Can update CAD model from Workbench

Introduction 

BladeModeler •

DesignModeler  –

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Automatic Fluid Zone Creation Create assemblies including “nonturbo” components

Training Manual 

Introduction 

BladeModeler •

Training Manual 

DesignModeler Additional modifications to turbomachinery components  –

Revolved Trim

Blade Fillets

Shroud Cover

Introduction 

BladeModeler •

Training Manual 

BladeEditor DesignModeler Add-In  –

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Create bladed components  –

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Create meridional flow path for multiple multipl e 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 

BladeModeler •

Training Manual 

BladeEditor  –  Can import or load .bgd file created from BladeGen into DesignModeler

BladeGen

BladeEditor

DesignModeler

Introduction 

BladeModeler •

VistaTF (Through-Flow)  –  Separate product from BladeModeler  –  Streamline curvature code (2D) for rapid analysis of blade  –  Uses CFD Post for postprocessing  –  Covered in Appendix

Training Manual 

Introduction 

Vista TF - Through-Flow •

Integration of through-flow solver  –

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Training Manual 

VISTA-TF PCA Engineers, Lincoln

Rapid blade row analysis Complementary to CFD simulation  –

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Flow path optimisation Initial condition

Shroud Contour Inlet Contour

Layer Contours

B1

B2

Blade Rows

B3

B4

Interface Locations Automatically Computed for Fluid Zone Creation

Outlet Contour

Hub Contour

Introduction 

Vista TF - Through-Flow •

Through-flow captures the key features  –

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CFD adds more precise details  –

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Purer prediction of performance Clearance flows

Use through-flow to „seed‟ CFD  –

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Velocity gradients

Reduced run-times

Mixed Flow Pump Stage

Training Manual 

Introduction 

BladeModeler •

Training Manual 

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

1D sizing (“meanline” tools) •

•

•

•

 –

2D rapid “through -flow” analysis •

 –

Vista AFD Vista CCD Vista CPD Vista RTD Vista TF

Blade geometry design tools •

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BladeGen BladeEditor DesignModeler