body force
 

fvVectorMatrix UEqn
(
fvm::ddt(U)
+ fvm::div(phi, U)
- fvm::laplacian(nu, U)

-beta*(T - T0)*g
;



fvScalarMatrix TEqn(
fvm::ddt(T)
+ fvm::div(phi, T)
- fvm::laplacian(DT, T)
;




I add body force with the momentum equation, when I run my problem,

I am getting the value of p, T and U. only problem is, no variation is found

for U. I consider g as (9.71 0 0). moving top wall temp is 1, cold bottom

wall temp is 0. others walls temp is zeroGradient. its a simple 2D case.

body force
 

fvVectorMatrix UEqn
(
fvm::ddt(U)
+ fvm::div(phi, U)
- fvm::laplacian(nu, U)

-beta*(T - T0)*g
);

fvScalarMatrix TEqn(
fvm::ddt(T)
+ fvm::div(phi, T)
- fvm::laplacian(DT, T)
);


I add body force with the momentum equation, when I run my problem,
I am getting the value of p, T and U. only problem is, no variation is found
for U. I consider g as (9.71 0 0). moving top wall temp is 1, cold bottom
wall temp is 0. others walls temp is zeroGradient. its a simple 2D case.