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Old   June 23, 2006, 16:51
Default Auto-optimization?
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JD
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Hey all

In some recent CFD readings, it seems some packages offer a mechanism for auto-optimization of a component. I want to do a wing study, where a few variables exist (i.e. angle of incidence/attack, various flap angles), and wonder if CFX has any ability to support this type of automated effort? Ideally, I would like to define edge conditions, and it could run through various combinations using those parameters, and a deformable mesh of some type, to either self-optimize, or to at least generate a results file for each variation.

Any guidance here for a newbie is appreciated.
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Old   June 24, 2006, 18:58
Default Re: Auto-optimization?
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Joe
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matlab + matlab optimisation toolbox + proE + CFXpre + CFXsolve + CFXpost = powerfull optimisation combination
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Old   June 26, 2006, 02:20
Default Re: Auto-optimization?
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Michael Bo Hansen
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Look at this PDF file. It uses Fluent, but it could probably be done for CFX as well.

http://www.dansis.dk/download/Fuldautomatisk%20Optimering%20-%20Steen%20Lauridsen.pdf

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Old   June 26, 2006, 02:22
Default Re: Auto-optimization?
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Michael Bo Hansen
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http://www.dansis.dk/download/MUST%20-%20Erik%20Lund.pdf
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Old   June 26, 2006, 05:43
Default Re: Auto-optimization?
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Joe
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Using traditional gradient based optimisation in CFD applications is often troublesome. Non-gradient based algorithms .e.g. direct search are much more robust.

Generating geometry within optimisation loops loops is often made easier by simply manipulating a CAD package's text based journal file.
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