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Advanced CFD Automisation and Optimisation

© CADFEM 2015

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Objectives

© © CADFEM CADFEM 2014 2015

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Objectives • • • •

Automisation of workflow for Simple CFD problem Apply different design parameters in automated manner Use this workflow for a sensitivity (DOE) analysis Extend this to optimise the design

© © CADFEM CADFEM 2014 2015

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Background to Problem Vortex Tube

Used for: Cooling cutting tools,

© © CADFEM CADFEM 2014 2015

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Background to Problem • STEP Geometry Low-Temperature Outlet

Inlet

Inlet

High-Temperature Outlet

© © CADFEM CADFEM 2014 2015

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Workflow Process • Workflow

© © CADFEM CADFEM 2014 2015

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Workflow Process - Spaceclaim • “Dumb Geometry” - Parametrised in Spaceclaim Inlet Radius –R1

Outlet radius – R3

Inlet Radius –R2

Tube Length - L

Outlet Radius – R4

© © CADFEM CADFEM 2014 2015

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Workflow Process - CFX • Create CFD analysis • Define input parameters – Inlet Pressure • Define output parameters – Mass flow rate & outlet temperatures

© © CADFEM CADFEM 2014 2015

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Workflow Process - Excel • Compressor power Calculation • Use inputs & outputs from CFD analysis to calculate shaft power to compressor

© © CADFEM CADFEM 2014 2015

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Workflow Process - OptiSLang • Run sensitivity analysis to examine influence of design parameters on outlet temperatures • Correlations • Response surface

© © CADFEM CADFEM 2014 2015

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Workflow Process - OptiSLang • Find Optimum design • Based on MOP • Minimise Tout1 • Minimise shaft power from compressor

© © CADFEM CADFEM 2014 2015

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Live Workshop

© CADFEM 2014

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1400 TS2 Advanced CFD - Automatisation and Optimisation.pdf ...

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