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Mapping Heat Flux from File

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Old   December 14, 2023, 09:10
Default Mapping Heat Flux from File
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Lasse K.
Join Date: Dec 2023
Location: Germany
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kreuze is on a distinguished road
Hey, I am working on a case where I want to couple 3 domains (cold fluid, solid and hot fluid).
First of all: Using a multiRegionSolver is not an option.
I set up the 3 cases and want to couple them via their coupling-surfaces.
It is important for me that I handle the data myself as I want to show the coupling capabilites with other programs. This is what I want to do:

  1. Calculate the wallHeatFlux coming from hot and cold flow to solid domain using rhoSimpleFoam with initial temperature boundary condition at the solid domain.
  2. Reading the obtained wallHeatFluxes from flow to solid
  3. Mapping the heat fluxes to the solid domain
  4. Calculate Temperature field in solid domain
  5. Map wall temperatures back to fluid domains
  6. and so on
The problem lies in step 3. I would like to map the heat flux q to the solid domain. For that I have the obtained heat fluxes from the fluid cases and the corresponding coordinates on the walls.
Having X,Y,Z and wallHeatFlux it seems pretty straight forward for me to apply this data to the temperature field T. But it is not as straight forward as I thought it would be. I am missing the right boundary condition.

I tried out to map my data via the timeVaryingMappedFixedValue BC. It works fine when coupling the solid temperature back to the fluid fields. However it doesn't work with the heat fluxes. If I use externalWallHeatFluxTemperature I can not use the obtained X,Y,Z Data and I would have to have consistent meshes.

Is there something similar as the timeVaryingMappedFixedValue BC that can map wallHeatFlux Data to the T-File?

Thanks in advance!
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coupling, heatflux, mapping, temperature

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