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Boussinesq Approximation on twoLiquidMixingFoam

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Old   April 16, 2018, 11:36
Post Boussinesq Approximation on twoLiquidMixingFoam
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Fantastic Boy
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Greeting everyone,

I'm currently conduct study using twoLiquidMixingFoam to study mixing of liquid. Unfortunately, the solver is non-boussinesq aprroximation. Is there anyone implement boussinesq approx successfully into twoLiquidMixingFoam solver?

I tried modify UEqn file by removing rho term in the equation and multiply with a constantRho, the solver works but the result is incorrect compare to journal study.

Thank You.
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Old   April 16, 2018, 16:16
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Uwe Pilz
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You may set the thermophysical properties in a way that is practical identical to the Boussinesq approximation. I did it not for the solver you mentioned, but compared buoyancyBoussinesqPimpleFoam with buoyancyPimpleFoam. They were nearly identical.
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