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June 19, 2017, 05:53 |
Linearized momentum source terms
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New Member
Anders Simonsen
Join Date: Sep 2013
Posts: 18
Rep Power: 13 |
Hi
I'm facing a problem with implementing a linearized source term for the momentum equations. The U-equation in my solver states (Turbulence+Steady state): Code:
tmp<fvVectorMatrix> tUEqn ( fvm::div(phi, U) + turbulence->divDevRhoReff(U) ); // [N/m^3] Code:
p[0] = p_Su[0] + p_Sp[0] * (U[0] - U_Ref[0]) p[1] = p_Su[1] + p_Sp[1] * (U[1] - U_Ref[1]) p[2] = p_Su[2] + p_Sp[2] * (U[2] - U_Ref[2]) Code:
tmp<fvVectorMatrix> tUEqn ( fvm::div(phi, U) + turbulence->divDevRhoReff(U) == p_Su - fvc::Sp(p_Sp,U) - fvm::SuSp(-p_Sp,U) ); // [N/m^3] The format shown above works for scalar equations, where I've successfully implemented it for scalar species as shown below: Code:
fvScalarMatrix YiEqn ( mvConvection->fvmDiv(phi, Yi) - fvm::laplacian(turbulence->muEff(), Yi) == Yi_Su - fvc::Sp(Yi_Sp,Yi) - fvm::SuSp(-Yi_Sp,Yi) ); // [kg/s-m^3] Can someone help me with my problem? I'd like to avoid using fvOptions, as I can't specify the source terms for each cell individually. Best regards Anders |
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momentum equation, source term |
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