[mariam.sara]

Hello I want to set temperature profile at left wall boundary for a square cavity as illustrated in picture. As it seen the temerature is function of vertical distance ? I need somebody assist me to write the UDF for this wall and thanks a lot for any help?

regards,
mariam

[AHF]

Originally Posted by mariam.sara

Hello I want to set temperature profile at left wall boundary for a square cavity as illustrated in picture. As it seen the temerature is function of vertical distance ? I need somebody assist me to write the UDF for this wall and thanks a lot for any help?

regards,
mariam

use DEFINE_PROFILE macro
search for it in ansys help for toturial

[mariam.sara]

Originally Posted by AHF

use DEFINE_PROFILE macro
search for it in ansys help for toturial

Sorry I do not find this subject may you assist me please by sending me a link for it or send me a related tutorial?

[vcvedant]

This is very simple.

DEFINE_PROFILE(udf_temp, t, i)
{
face_t f;
real x[ND_ND], y, Th, Tc, L;
/* change the values of the constants */
Th = 310;
Tc = 295;
L = 2;
begin_f_loop (f,t)
{
F_CENTROID(x,f,t);
y = x[1]; /* x is a vector */
F_PROFILE(f,t,i) = Th - y*(Th-Tc)/L;
}
end_f_loop (f,t)
}

[mariam.sara]

Originally Posted by vcvedant

This is very simple.

DEFINE_PROFILE(udf_temp, t, i)
{
face_t f;
real x[ND_ND], y, Th, Tc, L;
/* change the values of the constants */
Th = 310;
Tc = 295;
L = 2;
begin_f_loop (f,t)
{
F_CENTROID(x,f,t);
y = x[1]; /* x is a vector */
F_PROFILE(f,t,i) = Th - y*(Th-Tc)/L;
}
end_f_loop (f,t)
}

Thanks a lot vcvedant