[sheeko]

Hello,
I am trying to make a udf for the solid-liquid heat transfer coefficient for the thermal non-equilibrium model for porous media.
The heat transfer coefficient is a function of the temperature of the solid and liquid zones as well as the thermal conductivity of the fluid. I am wondering how I can call the temperature variables in both zones? as well as how can I use the thermal conductivity property of the fluid as a variable in the UDF.
Thanks

[anon_m]

Hello. Did you solve your problem and write a udf for heat transfer coeff.?

Thank you.

[woody85]

i have the same problem, i want to get the temperature of the solid in the porous zone.

[anon_m]

After creating the solid domain, get the domain ID (cell condition tab).
In the UDF, write something similar to:

int Zone_ID_solid = 9; /* solid zone ID*/
Domain *d = Get_Domain(1);
cell_t c;
Thread *thread_solid = Lookup_Thread(d,Zone_ID_solid);

begin_c_loop(c,thread_solid)
{
T_solid = C_T(c,thread_solid);
}
end_c_loop(c,thread_solid)

This will read the temperature in the cells of the zone specified. I think this would work, but I haven't check it.

[star]

Hello. I want to impose an equal temperature and flux condition at the interface between the porous zone and fluid zone in thermal non-equilibrium model through the equation K_se*dT_s/dr = K_fe*dT_f/dr = K_f*dT_f/dr = q_interface and T_s = T_f at the interface (where, K_se & K_fe are effective solid and fluid conductivity, q is the heat flux).I don't know how to write udf for this as I am not good in udf. I will be thankful for any suggestion about what macros should I use and how to implement.

[guilbemloco]

Originally Posted by sheeko

Hello,
I am trying to make a udf for the solid-liquid heat transfer coefficient for the thermal non-equilibrium model for porous media.
The heat transfer coefficient is a function of the temperature of the solid and liquid zones as well as the thermal conductivity of the fluid. I am wondering how I can call the temperature variables in both zones? as well as how can I use the thermal conductivity property of the fluid as a variable in the UDF.
Thanks

Hello, did you make the UDF for the heat transfer coefficient?

Thanks

[guilbemloco]

Originally Posted by woody85

i have the same problem, i want to get the temperature of the solid in the porous zone.

Dear woody85,

Did you manage to obtain the solid temperature in the porous domain?
If yes, how did you do it?

Thank you, G

[parvaz747]

Hi every body
I Have the same problem. I want to consider heat transfer coeff. as a function of reynolds number. How can I do this?
Please help me

[uday1996]

Originally Posted by parvaz747

Hi every body
I Have the same problem. I want to consider heat transfer coeff. as a function of reynolds number. How can I do this?
Please help me

did you solve this? I am doing the same type of problem. in which heat transfer coefficient need to give in terms of reynolds number. Could you please help me out?