I run a case using UDF compiled by C++. every thing is OK. I made the calculations, save data/case. Now if I want to continiue calculations appears this problem.

Error: FLUENT received fatal signal (ACCESS_VIOLATION) 1. Note exact events leading to error. 2. Save case/data under new name. 3. Exit program and restart to continue. 4. Report error to your distributor. Error Object: ()

What is going on??? I was reading advices on the forum and found nothing what could help me.If someboy has some ideas, please help me!

This is my udf:

#include "udf.h"

DEFINE_PROPERTY(cell_density_poly, c, t) { real ro_lam; real temp = C_T(c, t);

if (temp > 273.15) ro_lam = 530.848381+3.38899*temp-0.006121*temp*temp;

return ro_lam; }

i had the same error a couple weeks ago. don't remember how it was solved in the end. but i know i was using an old version of udf.h maybe that's the problem. i'll check it out tomorrow. have to go home now hope it works! ciao

Thanx a lot I'll try to invent something with udf.h file. have nice day michal

I tried to invent with udf.h but have no leater version. If someboby knows how to solve problem with Acces_Voilation error I would be glad.

greetings

michaL