Advection-diffusion for existing velocity data

[Karoline Bornemann]

Hi all, 

I would like to run an advection-diffusion simulation for an existing velocity field (which I computed from an FSI simulation with IBAMR). Is there any capability in the solver to set this up?

Thanks a lot, 

Karoline

[Boyce Griffith]

David / Aaron, I think we added some support for this kind of workflow for the project with Redbud Labs — is that something that we ever merged into IBAMR itself?

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[Aaron Barrett]

I haven't written any code for Redbud, so I don't know the state of that project. Unless David has something, you'll have to write a CartGridFunction extension that can evaluate the FSI velocity fields on the advection-diffusion patch hierarchy. There are already tools to interpolate from one patch hierarchy to another (see convergence_tester.cpp examples or SnapshotCache), so if the velocity field is saved directly from SAMRAI, it should not be too hard.

[Boyce Griffith]

OK, I checked, and I think this is something that is in the Redbud module. I’m going to work with the main developer of that and try to get it into IBAMR later this month/early next month.

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