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Modify dsmcMassFlowRateInlet in dsmcFoamPlus

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Old   December 8, 2017, 10:46
Default Modify dsmcMassFlowRateInlet in dsmcFoamPlus
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P. H.
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Hello Foamers,

I am trying to set up a case in Openfoam-2.4.-MNF, specifically I want to use dsmcFoam+. In my simulation I am trying to model a gas flow emerging from a thruster into near-vacuum. For the inlet I am using the boundary condition "dsmcMassFlowRateInlet" which is specific to dsmcFoam+. The setup within the "boundariesDict" is the following:

Code:
boundary
    {
        generalBoundaryProperties
        {
            patchName            inlet;
        }

        boundaryModel         dsmcMassFlowRateInlet; 

        dsmcMassFlowRateInletProperties
          {
        moleFractions
            {
                N2 1;    
            };
        typeIds                (N2);
        massFlowRate         0.003; 
        inletTemperature    1000;
        initialVelocity        (2600 240 0);

        };
This allows me to specify the overall massflow going through the surface (3 g/s). However, I would like to apply a massflow-profile (and temperature/velocity-profile) over the surface; i.e. have a specified massflow for every cell of the inlet patch.

Does anyone know some good advice on this?

Thank you very much in advance!
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Old   June 20, 2018, 08:45
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Sadegh
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Hi proff
Please help me. How to give a boundary condition rotational in dsmcfoamplus?
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