1 volVectorField Ur(Ua - Ub);
2 volScalarField magUr(mag(Ur));
4 volScalarField Ka(draga->K(magUr));
9 volScalarField Kb(dragb->K(magUr));
12 else if (dragPhase == "blended")
14 volScalarField Kb(dragb->K(magUr));
15 K = (beta*Ka + alpha*Kb);
18 volVectorField liftCoeff(Cl*(beta*rhob + alpha*rhoa)*(Ur ^ fvc::curl(U)));