[ARUN K RAJ]

Hi Members

I'm trying to add certain enthalpy equations to twoPhaseEulerFoam 2.2 version. I am getting an error like this as given below
TEqns.H:14:32: error: no matching function for call to ‘ddt(Foam::tmp<Foam::GeometricField<double, Foam::fvPatchField, Foam::volMesh> >)’
Similarly an error related with div scheme also.

The error is associated with fvm schemes i added in the TEqn.H file. But what does it refer to ? any valuable suggestions??
The energy equation is smthng like this:

ddt(rho1*u1*cp1*T1)+ div(rho1*u1*v*cp1*T1)= laplacian(k*T)

k thermal conductivity

I have rather not much knowledge with openfoam and the coding stuffs

[mprinkey]

ddt, div, and laplacian exist in (at least) two namespaces. fvc::laplacian does the explicit finite volume calculation (hence fvc) and produces a field. fvm::laplacian creates a linear system (matrix A and right-hand-side vector b) involving the laplacian of the variable. (fvm is "finite volume matrix.")

There are plenty of examples of energy equations in other openfoam solvers. I suggest that you study those.

[ARUN K RAJ]

Sure i would take a look into the other solvers where the energy equations are added. And thanks for the details

[ARUN K RAJ]

Could somebody explain me more about thermo.(). It is related with thermophysical properties bt hw can i define it onto a solver. what is the proper format for it.

[nimasam]

Dear ARUN

i suggest you to get familiar to C++ programming at first, specially how to work with classes , then you can easily find answers for all your simple questions