[idrees khan]

Hi Dear's.

I'm going to Add temperature Equation to viscoelasticFluidFoam solver.



there is a material derivative term of log(T) (screenshot of the equation is attached )in the constitutive equation(I.e in this case Olroyd-B)



kindly if any one could guide me how to write that term in OldoydB.C file.



I add it like


volScalarField logT = log(T);
fvm::ddt(tau_,logT) + fvc::div(phi()*tau_,logT)



but getting error like(screenshot is also attached)



viscoelasticLaws/Oldroyd-B/Oldroyd_B.C:124:27: error: no matching function for call to ‘ddt(Foam::volSymmTensorField&, Foam::volScalarField&)’
fvm::ddt(tau_,logT) + fvc::div(phi()*tau_,logT)





Note:I change to fvc and fvm respectively but getting same error's.



regards

Idrees khan