Hi everyone,

I have a problem with using udf in the Stanford website http://www.stanford.edu/class/me469b/handout.html, which is for a low-reynolds number-k-e model by using scalar equaitons by deactivating the k and e equations.

I compile and attach the UDF in FLUENT with no problem, and hooking the various functions (sources,bc,scalar diffusivity and eddy viscosity) is ok, but after i hook the udf Routine of DEFINE_ADJUST and initializing, FLUENT gives me this fatal error:

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: ()

the UDF routines of DEFINE_ADJUST is as follows,

DEFINE_ADJUST(turb_adjust, domain) {

Thread *t;

cell_t c; /* Set the turbulent viscosity */

thread_loop_c (t, domain)

if (FLUID_THREAD_P(t))

{

begin_c_loop(c,t)

{

C_STORAGE_R(c,t,SV_MU_T) = C_R(c,t)*CMU*f_mu(c,t)*sqrt(C_UDSI(c,t,TKE))/C_UDSI(c,t,TDR);

}

end_c_loop(c,t)

} }

The problem above have bothered me for a long time. Can anybody tell me the reason? I can give you my case file by e-mail,If necessary. Any help would be much appreciated. Micheal.

Hi Michael,

Did you find some solution for the error.

if you have some solution, Can you post the same or write an email to me.

Thanks. Sk.