I am working with DPM and using UDF. Without UDF my model is working good. When I compiled my UDF I got a warning (image attached) but opened the file. After compilation when I run the simulation, it stopped with n fatal signal error. Here is my UDF
/**************************************************************************************/
/* UDF for computing cell co-ordinates */
/**************************************************************************************/
#include "udf.h"
#include "sg.h"
#include "prop.h"
#include "dpm.h"
#include "surf.h"
#define WALL_ID 8
DEFINE_DPM_SCALAR_UPDATE(particle_coords, c, ct, initialize, p)
{
real A[ND_ND];
int n;
face_t f;
Thread *ft;
c_face_loop(c, ct, n)
{
f=C_FACE(c, ct,n);
ft=C_FACE_THREAD(c, ct, n);
if (NNULLP(ft))
{
if (THREAD_ID(ft)== WALL_ID)
{
p->user[0] = p->state.pos[0];
p->user[1] = p->state.pos[1];
p->user[2] = p->state.pos[2];
}
}
}
}
DEFINE_DPM_OUTPUT(Particle_coords_output, header, fp, p, thread, plane)
{
char name[100];
if (header)
{
if (NNULLP(thread))
fprintf(fp,"(%s %d)\n",THREAD_HEAD(thread)-> dpm_summary.sort_file_name,3);
else
fprintf(fp,"(%s %d)\n",plane->sort_file_name,3);
fprintf(fp,"(%10s %10s %10s %s)\n",
"X", "Y", "Z");
}
else
{
sprintf(name,"%s:%d",p->injection->name,p->part_id);
fprintf(fp,
"((%10.6g %10.6g %10.6g) %s)\n", p->state.pos[0], p->state.pos[1], p->state.pos[2]);
}
}
Could you please help me?
Saeed
Sorry, I am a graph theorist not familiar wth the problem you are interested in.
Hello,
Hope this helps
http://www.cfd-online.com/Forums/fluent-udf/125428-udf-error-concerning-math-h.html
Andrea C. Landazuri thanks. I have solved that problem and now it's running. The problem is, i am not getting the output. It only prints x,y,z but not the coordinates.
Just remove the line face_t f; and change the fprintf. You can use par_fprintf_head instead of fprintf. Set the number of scalar from the DPM UDF tab and then it will not show any fatal signal. Hope it might be helpful.
Dear friend
can you tell the means of P_USER_REAL(p,0) = P_USER_REAL(p,0) + 1.
P_USER_REAL(p,1) = 1. in the macros DEFINE_DPM_SCALAR_UPDATE.
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