[gaza]

Hi Friends,
Is it possible to define thermal conductivity using DEFINE_PROPERTY macro
and then retrieve this value in another UDF function using C_K_L macro?

I did something like that but it does not work (message function returns 0 instead of 1111):

#include "udf.h"

DEFINE_PROPERTY(helCond, c, t)
{
    real k = 1111;
    return k;
}

DEFINE_ON_DEMAND(ilehelCond)
{
    Domain *domain;
    domain = Get_Domain(1);
    cell_t c;
    Thread *c_thread;  
    // c_thread = Lookup_Thread(domain, 12);
    thread_loop_c(c_thread, domain) /*loops over all cell threads in domain*/
    {
        begin_c_loop(c, c_thread)    /* loops over cells in a cell thread  */
        {
            Message("k = %f%s", C_K_L(c, c_thread), "\n");
        }                         
        end_c_loop(c, c_thread)
    }
    
}

[Aurelien Thinat]

Well, I guess it should work. Here is something working close to your own UDF :

DEFINE_ON_DEMAND(report)
{
Domain *d = Get_Domain(1);
Thread *t = Lookup_Thread(d,2);
real lambda = 0.;
real volume = 0.;
begin_c_loop(c,t)
{
lambda += C_K_L(c,t);
volume += C_VOLUME(c,t);
}
lambda = lambda / volume;
Message("lambda = %f \n; lambda);
}

[gaza]

Hi Aurelien Thinat
No my UDF does not work. In the code I wrote, the message function should return 1111 value, while it returns 0.