Microsoft PowerPoint - Fluent for Optimization

Microsoft PowerPoint - Fluent for Optimization - Fluent for...

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Fluent for Optimization Course By : Prof. Hosseini prepared by: S.M. rafigh Department of chemical engineering 2011
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Outline CFD in design Problem statement Duct parametrization Flow solution Results Conclusion FLUENT CFD Conference 2003 2
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Using CFD in Design Simulation Time CFD is takes huge amounts of time for real life problems Design requires repetitive runs of disciplinary analyses Integration With optimizer With other disciplinary analyses (e.g. grid generator) Automation No user interaction should be required for simulation Gradient Information No commercial CFD solvers provide gradient information Computationally expensive and problematic ( ) to get gradient information for CFD solvers (finite difference, automatic differentiation) FLUENT CFD Conference 2003 3
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Methodology Problem Specification Parametrization New parameters eometry Generation FLUENT CFD Conference 2003 4 Geometry Generation Grid Generation CFD problem setup Flow Solution Optimization using Surrogate Models (RSM, DACE)
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Methodology Problem Specification Parametrization New parameters eometry Generation FLUENT CFD Conference 2003 5 Geometry Generation Grid Generation CFD problem setup Flow Solution Optimization using Surrogate Models (RSM, DACE) FLUENT
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3-D Duct Design Problem c Pressure Recovery • Distortion • Swirl FLUENT CFD Conference 2003 6 Entry Exit Location and shape known Geometry of duct from Entry to Exit ?
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Parametrization Y Z FLUENT CFD Conference 2003 7 X X Duct Centerline A X Control / Design Variables • Y m , Z m • A L/3 , A 2L/3 Cross Sectional Area
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Parametrization (contd.) Y Z FLUENT CFD Conference 2003 8 X X Duct Centerline A X Control / Design Variables • Y m , Z m • A L/3 , A 2L/3 Cross Sectional Area
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Typical 3D-Ducts FLUENT CFD Conference 2003 9
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Grid Generation Generation of entry and exit sections using GAMBIT Clustering Parameters onversion of file format to Mesh file s Complete grid generation process is automated and does not require human intervention
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Microsoft PowerPoint - Fluent for Optimization - Fluent for...

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