udf for fuel release and combustion

Nils Kersting

Hello at the moment i have a fluid zone where at a cetrain temperature the cell release fuel...(udf see below) how can i extend the udf for a request at the cell that at a certain energy load the cells release fuel.

thanks for answering

#include "udf.h" #define CON 0.38

DEFINE_SOURCE(cell_m_source, cell, thread, dS, eqn) {

real source;

if (C_T (cell, thread) <=800.)

{

/* source term */

source=CON;

/* derivative of source term w.r.t. x-velocity. */

dS[eqn]=0;

}

else

source=dS[eqn]=0.;

return source; }