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UDF problem to obtain maximum temperature

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Old   November 14, 2021, 11:20
Default UDF problem to obtain maximum temperature
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Erfan
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Hello all
I use a udf to obtain the maximum temperature in each timestep and use it in another udf.to get the maximum temperature I wrote this udf:
Code:
real tmax=0.;
DEFINE_ON_DEMAND(on_demand_calc)
 {
 Domain *d; 
 real temp;
 Thread *t;
 cell_t c;
 d = Get_Domain(1); /* Get the domain using ANSYS Fluent utility */
 /* Loop over all cell threads in the domain */
 thread_loop_c(t,d)
 {
 /* Compute max temperature */
 /* Loop over all cells */
 begin_c_loop(c,t)
{
 temp = C_T(c,t); /* get cell temperature */
 if (temp > tmax || tmax == 0.) tmax = temp;
 }
 end_c_loop(c,t)
 printf("\n Tmax = %g ",tmax);
 }
 }
but it prints about 11 tmax in every timestep that the first ones are 0 but the last one I think are correct.I execute this udf from execute on demand and User-Defined Function Hooks>execute at end.
Can anyone Help me please or it will work properly?
P.S: My case consist of several zones.
thanks in advanced
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Old   November 15, 2021, 00:20
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Alexander
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AlexanderZ will become famous soon enoughAlexanderZ will become famous soon enough
parallelize your code, make it works on several nodes

more information in ansys fluent customization manual
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Old   November 15, 2021, 06:19
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Erfan
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thank you Alexander for your help but as I'm not an expert in writing a UDF I want to know if my code works properly without any changes then I just use it.
In the first timesteps, the last printed tmax for each timestep was correct.
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Old   November 16, 2021, 01:03
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Alexander
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as you are not an expert in writing a UDF, you've asked question here, got an answer.
now you can follow recommendations or ignore
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