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));