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Ansys Learning Forum › Forums › Discuss Simulation › Fluids › Regarding UDF › Reply To: Regarding UDF

September 6, 2021 at 7:19 am
ritwik
Subscriber
#include "udf.h"
int i;
/*Adsorption*/
DEFINE_ADJUST(adsorption,d)
{
Thread*t; cell_t c; real E,A,P;
thread_loop_c(t,d)
{
begin_c_loop (c,t)
{
real tem=C_T(c,t);
P=C_P(c,t)+RP_Get_Real("operating-pressure");
E=3080+18,9*tem;
A=8,31429*tem*log(1.47E9/P);
C_UDSI(c,t,i)=71.6*exp(-A*A/(E*E));
}
end_c_loop(c,t)
}
}
DEFINE_ADJUST(q_ads, d)
{
Thread *t;cell_t c; real dt;
thread_loop_c(t,d){ /*q_ads is the UDF name i am defining*/
begin_c_loop(c,t){
dt = RP_Get_Real("physical-time-step")/*int i is number of UDS*/
C_UDSI(c,t,i)=C_UDSI(c,t,i)+0.15.*dt*(C_UDSI(c,t,i)-C_UDSI(c,t,i));}
end_c_loop(c,t)
}
}
I am allocating 2 UDS and 4 UDM
After go through the manual, i modified the UDF. Can you please tell me, where i have gone wrong?