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#1 |
New Member
Erik Swanson
Join Date: Mar 2009
Posts: 2
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Does anyone have any experience with/has anyone tried applying automatic differentiation to OpenFoam to get parameter sensitivities for a solution?
I would like to use OpenFoam to solve a flowfield with a movable boundary. The thing I really need though, is the partial derivative of the integrated pressure on the surface with respect to movement of the surface (i.e., a linearized stiffness). The easy answer is a finite difference approximation, but automatic differentiation seems like a more elegant (possibly more efficient) approach. Thanks |
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#2 |
Senior Member
Hrvoje Jasak
Join Date: Mar 2009
Location: London, England
Posts: 1,906
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Yup, I have done work along those lines with good results. The biggest problem is funding: this is a kind of work with wide implications and applicability but requires proficiency along many lines. If you have backing to set up a serious project or fund a PhD student, please talk to me.
I have to say that doing this requires profound knowledge of C++, OpenFOAM, mathematics involved etc. and I would not jump into it lightly. Hrv
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Hrvoje Jasak Providing commercial FOAM/OpenFOAM and CFD Consulting: http://wikki.co.uk |
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#3 |
New Member
Erik Swanson
Join Date: Mar 2009
Posts: 2
Rep Power: 0 ![]() |
Thanks for the reply. I'm not quite to the point of getting serious about this project - I'm still trying to develop funding and(or) a huge block of time.
If I get something going, I will probably be in touch. Thanks, Erik |
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Thread | Thread Starter | Forum | Replies | Last Post |
Automatic Differentiation | Frauke Ramseck | Main CFD Forum | 8 | March 5, 2008 06:19 |
Automatic Differentiation (AD) for PDE's | dav | Main CFD Forum | 4 | February 4, 2003 16:26 |