I am using compressible solver in addition to a special type of boundary condition that we define. When implementing this BC, we split the field at that boundary into wave components - one going in and other going out. The wave going in is provided externally and OpenFOAM gives the wave going out. N…

@Makis Yes, I was able to solve this problem. I explain my problem here once again with an example. In my Boundary condition code, I calculate a scalar value ‘f’/‘g’ that needs to be coupled to other domain/solver and a scalar ‘g’/‘f’ is received from the other domain/solver. Boundary condition its…

This is an interesting use case, @namanpurwar93 ! The OpenFOAM adapter assumes that the user sets a “simple” boundary condition (e.g. fixedValue, fixedGradient, mixed), sets a dummy value, and then it overwrites it after each advance(), to be used in the next timestep. How do your code changes look…

We are ultimately using mixed time-varying boundary condition with mixedFvPatchScalarField::updateCoeffs(). We calculate refValue(), valueFraction() and refGrad(). For a particular boundary, for example, current time step field values gives wave component g and reads another wave component f provide…

If I understand correctly, it looks like this is possible and that you can follow a similar approach to what we use for our robin-robin (i.e. mixed BC) coupling in CHT (see Sink Temperature and Heat Transfer Coefficient ). You don’t need to couple the field variables. You could move your computation…

The boundary condition I want to use is modified every PIMPLE loop because of correctBoundaryCondition and also at every iteration of time loop. As far as I understood, precice couples only every iteration of the time loop. Is it correct? If so, then how can I make changes in the fields of the inter…

I think that function objects are not called in every internal iteration of the PIMPLE loop (this would actually be a good OpenFOAM-specific question for CFD Online). However, you could maybe modify your solver to explicitly trigger all function objects’ execute(). I could expect this to explode, ho…

OpenFOAM adapter with special Boundary Condition

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Makis April 28, 2020, 8:01pm 7

@namanpurwar93 do you by any chance have any news regarding this, or suggestions for future readers? Which approach did you choose?

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OpenFOAM adapter with special Boundary Condition

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