Hi all;

How to compute mass imbalance in fluent?

Has anybody access to a udf for calculation of mass imbalance and send it for me ?

Thanks in advance;

Does following udf calculate mass imbalance in each cell?

thread_loop_c (t,domain)

{

begin_c_loop(c,t)

{

int i=1;

C_UDMI(c,t,4)=0.0;

c_face_loop(c,t,i)

{

f=C_FACE(c,t,i);

tf=C_FACE_THREAD(c,t,i);

if(BOUNDARY_FACE_THREAD_P(tf)) {

face_flux=F_FLUX(f,tf) ;

} else{

if(F_C0(f,tf)==c) {

face_flux =F_FLUX(f,tf); /*method is first order upwind*/

}

else {

face_flux =-F_FLUX(f,tf);

} } }

C_UDMI(c,t,4)=C_UDMI(c,t,4)+face_flux ;

}

}

end_c_loop(c,t) }

Thank's in advance