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which formula used in drag force in dragModel.C? |
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#1 |
Senior Member
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Hi, everyone. I am confused that the expression of drag force used in Openfoam, as shown in the following codes. Why there is nu and divided by square of particle diameter. I saw the formula is without nu and only divided by diameter in some literature. Do you have any tip for me? Thanks a lot. By the way, After I deleted pair_.continuous().nu() and only divided by diameter. The results I obtained are totally the same.
Foam::tmp<Foam::volScalarField> Foam::dragModel::Ki() const { return 0.75 *CdRe() *swarmCorrection_->Cs() *pair_.continuous().rho() *pair_.continuous().nu() /sqr(pair_.dispersed().d()); } |
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#2 |
Senior Member
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I understood the formula because CdRe already multiplied by a Re, so it should time nu and divide the other diameter in dragModel.C.
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Tags |
drag model, twophaseeuelrfoam |
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