Incompatible Field of operation

tayo · December 11, 2012, 14:46

I want to include pressure in my energy eqn in the form below. It compiles fine but whenever I run it the case, it gives an error
"incompatible fields of operation
[T] + [p_rgh]"

I guess it means I can only solve for one field per scalar matrix. How can I go around this to include pressure in the energy eqn? Thanks.

fvScalarMatrix TEqn
(
fvm::ddt(rhoCp,T)
+ fvm::div(rhoPhiCpf,T)
+ fvm::div(phi,p_rgh)
- fvm::laplacian(kappa,T)
);

mturcios777 · December 11, 2012, 15:41

Including it explicitly might work, but I don't think that is what you are after.

tayo · December 11, 2012, 16:04

Quote:

Originally Posted by mturcios777

Including it explicitly might work, but I don't think that is what you are after.

Thanks. it works when I solve it explicitly but according to your statement, what should I look out for?

December 11, 2012, 14:46	Incompatible Field of operation	#1
tayo Member Tayo Join Date: Aug 2012 Posts: 94 Rep Power: 14	I want to include pressure in my energy eqn in the form below. It compiles fine but whenever I run it the case, it gives an error "incompatible fields of operation [T] + [p_rgh]" I guess it means I can only solve for one field per scalar matrix. How can I go around this to include pressure in the energy eqn? Thanks. fvScalarMatrix TEqn ( fvm::ddt(rhoCp,T) + fvm::div(rhoPhiCpf,T) + fvm::div(phi,p_rgh) - fvm::laplacian(kappa,T) );

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December 11, 2012, 15:41		#2
mturcios777 Senior Member Marco A. Turcios Join Date: Mar 2009 Location: Vancouver, BC, Canada Posts: 740 Rep Power: 28	Including it explicitly might work, but I don't think that is what you are after.