[T81]

Hi!

I have the following 2D channel geometry, like my previous post:

..............____________________________
heat --> |............................................ |
flux ---> |____________________________|

fluid ---> ----------------axis--------------------
..............____________________________
heat --> |............................................ |
flux ---> |____________________________|

I want to compute the average temperature of the walls (solid), in a transient analysis.

First, I define a User-Defined Memory (Define-->User-Defined-->Memory...)
Then I patch the value 1 for the User Memory O to the Solid Zone.

Then I wrote the following code using the DEFINE_ADJUST macro, hooked it, but when I start the iterations I get:

"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's wrong in my code?

Thanks in advance.

Explaining the code: In every iteration, if a region has a value > 0.5 for UDMI 0 (solid has the value 1, fluid 0), the code computes the sum of temperatures for this region, and then the average value.

/***************************************************/
/* User-Defined Function for computing Solid Average Temperature  */
/***************************************************/

#include "udf.h"

DEFINE_ADJUST(my_adjust,d)
{
  real n = 0.;
  real Tsum = 0.;
  real T_AVG = 0.;
  
  Thread *t;
  cell_t c;
  real flag = C_UDMI(c,t,0);

 thread_loop_c(t,d)
 {
   begin_c_loop(c,t)
   if (flag > 0.5)
  {
    Tsum = Tsum + C_T(c,t);
     n = n + 1;
  }
   end_c_loop(c,t)
 }
  
  T_AVG = Tsum/n;
}