Hi to all

Can anybody enlighten me in the writing of an UDF to define unsteady mass flow rate in a spray? I have tried the subroutine below but it does not want to compile.

#include "udf.h" #include "surf.h" #include "dpm.h"

DEFINE_DPM_INJECTION_INIT(pulse_spray, I) {

real spray;

Particle *p;

cell_t cell;

Thread *cthread;

loop(p, I->p_init)

{

cell = P_CELL(p);

cthread = P_CELL_THREAD(p);

real t=RP_Get_Real("flow-time");

P_FLOW_RATE(p) = 0.00011+0.00009*cos(200*M_PI*t);

spray=P_FLOW_RATE(p);

}

return spray

Thanks

Fernando

Hi, i think your problem is in the definition of the pointer 'p'. in subroutine you're using *p need to be passed to macros as Tracked_Particle type, so let's try to declare: 'Tracked_Particle *p' instead of 'Particle *p

I might be wrong but, It could be a solution.

Seeu Adriano Z

Thanks Adriano. I tried it but it still does not want to compile.

I'm working in a similar code and I've similar problems... so mahh?!?!

Adriano, I have corrected the UDF and it is compiling fine. If you see this send me an e-mail and I will send you the file. lopar30@hotmail.com

Regards

Fernando