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August 11, 2017, 03:14 |
multiphaseInterFoam vs multiphaseEulerFoam
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Dear Foamers
I am running a multiphase case with two solvers as mentioned. The phases are air, water, light density solids and high density solids. In the case of multiphaseInterFoam solids are assumed as liquid phase of similar densities. My doubt arises at the moment I set the inlet conditions: For multiphaseInterFoam I set fractional inlet values of all phases in 0/alpha.* files. e.g. for water as: Code:
inlet { type fixedValue; value uniform 0.85; } Code:
inlet { type flowRateInletVelocity; volumetricFlowRate 0.001354; } However, I have played with the various combination of inlet conditions for the case of multiphaseEulerFoam, but only one is working, which is described here: In this case, I have to define the phases fraction in 0/alpha.* files as: Code:
inlet { type fixedValue; value 0.92; } Code:
inlet { type flowRateInletVelocity; volumetricFlowRate 1250E-6; } In simplicity, my question is what OpenFoam is doing in case of multiphaseEulerFoam, which values are actually being considered, in 0/alpha.* files or 0/U.* files? P.S.: Doubtful on first option (i.e. of 0/alpha.* values being sole and primary) as it will require total flow rate value which I am not providing anywhere as I did in 0/U file in multiphaseInterFoam case. Regards Rahul K Soni Scientist, CSIR, India |
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multiphaseeulerfoam, multiphaseinterfoam |
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