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February 24, 2014, 06:06 |
adjoint Shape Optimization
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#1 |
Senior Member
Join Date: Jun 2011
Posts: 163
Rep Power: 15 |
Hi all
I need an adjoint shape optimization solver in openfoam which can moves the geometry. in other words it uses grid points as the design parameters( instead of porosity in adjointShapeOptimizationFoam ) does this solver exist ? If not I need some references which explain its algorithm with more details specially about calculating the gradient of object function any help will be appreciated. |
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March 7, 2014, 06:20 |
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#2 |
New Member
George Karpou
Join Date: Oct 2010
Posts: 1
Rep Power: 0 |
Hi,
Basically, you need the surface sensitivities. The ones at the adjointShapeOptimizationFoam are volumetric sensitivities (design variables = porosity). You can calculate the surface sensitivities very easily. Just google surface sensitivities and you will definitely find it. This field will be calculated at walls and then you can move the points with a mesh motion tool or something similar (in-house). Note: The adjointShapeOptimizationFoam implementation is not actually right from the mathematical point of view. So before you calculate the sensitivities you have to correct the solver first. G |
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March 7, 2014, 06:22 |
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#3 |
Senior Member
Samuele Z
Join Date: Oct 2009
Location: Mozzate - Co - Italy
Posts: 520
Rep Power: 19 |
Hi,
I am gonna use the adjointShapeOptimizationFoam solver, too. What's wrong with it? |
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March 7, 2014, 12:18 |
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#4 |
Member
Brugiere Olivier
Join Date: Mar 2009
Posts: 34
Rep Power: 17 |
Hi,
I'm using a solver which comes from Chalmers : http://www.tfd.chalmers.se/~hani/kur...seFiles.tar.gz I've no problem with this new version. But I don't find how I can calculate surface sensitivities. I read Othmer's paper but I don't understand how I can implement this equation. So If somebody can give some informations thanks a lot. |
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March 9, 2014, 15:19 |
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#5 | |
Senior Member
Join Date: Jun 2011
Posts: 163
Rep Power: 15 |
Quote:
can you tell me what is wrong in adjointShapeOptimizationFoam ? |
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August 5, 2014, 12:18 |
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#6 |
New Member
Join Date: Oct 2013
Posts: 12
Rep Power: 13 |
Hi I'm also interested in adjoint and I'm trying to implement the surface sensitivity, can you post again the Chalmers link to the solver because seem than now doesn't work.
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August 14, 2014, 09:27 |
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#7 |
Senior Member
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August 19, 2014, 04:59 |
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#8 |
Member
Christian
Join Date: Apr 2014
Posts: 74
Rep Power: 12 |
Hi all,
wanted to reopen this topic to inform you about the Sig Numerical Optimization. http://openfoamwiki.net/index.php/Si...l_Optimization https://www.linkedin.com/groups?gid=8137157 We are willing to improve the adjointShapeOptimizationFoam solver, so if anyone is working on that and would like to give its contribution feel free to join the group! |
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September 5, 2014, 13:39 |
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#9 | |
Super Moderator
Francisco Palacios
Join Date: Jan 2013
Location: Long Beach, CA
Posts: 404
Rep Power: 15 |
Quote:
Cheers, Francisco |
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September 5, 2014, 14:27 |
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#10 |
Member
Christian
Join Date: Apr 2014
Posts: 74
Rep Power: 12 |
Not yet but will start soon! Thanks for the update, I wasn't aware that SU2 could perform adjoint optimization!
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May 5, 2017, 02:21 |
boxWindCase download for adjointSensitivityFoam
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#11 |
Member
le
Join Date: Nov 2009
Location: seoul
Posts: 34
Rep Power: 17 |
Hello All,
Anyone have boxWindCase file ? I want to test adjointSensitivityFoam solver in OF 2.3.0. Thanks |
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June 19, 2017, 10:05 |
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#12 |
Member
Brugiere Olivier
Join Date: Mar 2009
Posts: 34
Rep Power: 17 |
Hi Le,
you can find Simon Lindberg's work on : http://www.tfd.chalmers.se/~hani/kurser/OS_CFD_2014/ On this site you will find solvers and report. Regards |
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