User defined memory

Hp

Hi,

I have some problem in using UDM. I am using a multiphase model and I need the user defined memory to save the velocity. The following is my code:

#include "udf.h" DEFINE_ON_DEMAND(Init_UDM) {

Domain *mix_d=Get_Domain(1);

Thread *t,*water_t;

cell_t c;

real t1;

thread_loop_c(t,mix_d)

{

begin_c_loop(c,t)

{

water_t=THREAD_SUB_THREADt,0);

C_UDMI(c,t,0)=C_U(c,water_t);

}end_c_loop(c,t)

}

I first define the 1 user defined memory and then execute the Excute_on_demand. And I get the following error information. 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: ()

I am so confused since I can't find anyting wrong with the code. Can someone clarify for me? Thank you.

Hp