[clarkie_49]

Hi all,

First, before realising that i required a UDF, i originally posted something similar to this post in the Fluent section. So i'm sorry for the double(ish) post, but i now believe that my issue is more relevant to this section of the forum.

What i would like to do is update all cell values C_T(c,t) from a steady flamelet solution, with the "mean temperature" values after running the unsteady flamelet solution (Note: this is a post processing step on top of a steady RANS solution). The "Mean Temperature" data can be found listed under the "unsteady flamelet" drop down box when creating contours; and when you export or write this data it has the heading of "ufla-t" with no "SV" prefix.

I have had a play around with creating a UDF (only my 2nd UDF) and i believe that the code below is something like what i want. However, the values from "C_UFLA_TEMP_NUM(c,t)" are not what i require. I'm hoping that somebody on here can steer me in the right direction in to find where this "ufla-t" / "Mean Temperature" data is stored within fluent and how i can access it.

Thanks


#include "udf.h"
#include "sg_mem.h"

DEFINE_ON_DEMAND(on_demand_temp_update)
{
Domain *d; /*declare domain pointer since it is not passed as an argument to the DEFINE macro */
real temp;
Thread *t;
cell_t c;
d = Get_Domain(1); /*Get the domain using Fluent utility */

/* Loop over all cell threads in the domain */
thread_loop_c(t,d)
{
/* Update static temperature values with those from unsteady solution */
/* Loop over all cells */
begin_c_loop(c,t)
{
temp = C_UFLA_TEMP_NUM(c,t);
C_T(c,t) = temp;
}
end_c_loop(c,t)
}
}