How to evaluate the force of particles to the fluid in Lagrangian method
Dear all,
I'm using a Eulerian-Lagrangian solver to simulate gas-solid flow. And in the UEqn.H file of the solver, there is a term of parcels.SU(U). I know that this term is used to expand the momentum equation for two-way coupling. But how to evaluate this term? Thanks in advance. Maria |
Hi, maria, regarding your thread, seems what I do is similar to your issue.
How is your case going now? |
Hi, I just read the source code of kinematicCloudI.H which has the implementation of SU(volVectorField& U).
In the implementation of SU(), a switch named coupled determines the two-way coupling works indeed. What does Vdt() mean in this function? |
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About Vdt, I think it is related to the time step, but don't know the specific meaning either... |
Hi, maria, nice to see your response.
I have no clue to the terms in the implementation of SU() in kinematicCloudI.H, in fact I don't know how the coupling works. But I have a model to describe the interactions between the gas and the liquid, what I need to do is to write a new function/routine in kinematicCloudI.H to implement my model, and replace the parcels.SU(U) with my new function. I do hope it's a successful attempt. |
Hi, Maria, do you understand dimensionedField and 'dimForce' in KinematicCloudI.H?
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fvOptions seems another option to hold the source?
https://openfoam.org/release/2-2-0/fv-options/ |
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