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-   -   Help needed with UDF writing (CREATIVITY WELCOME!) (http://www.cfd-online.com/Forums/main/88318-help-needed-udf-writing-creativity-welcome.html)

ximik May 13, 2011 12:11

Help needed with UDF writing (CREATIVITY WELCOME!)
 
Hello,
I am working on writing a UDF that does the following steps:

1) Gets the face value for the solar and total radiation flux. I have been trying to use the call function : solar_flux=F_SOLAR_SOURCE(f,t);
rad_flux=BOUNDARY_RAD_HEAT_FLUX(f,t);
2) Stores the face information (F_UDMI (c,t,1)= solar_flux) in the adjacent cell ( cell_t c0=F_C0(c,t,); Thread *t0 = THREAD_T0(t); C_UDMI(c0,t0,1) = F_UDMI (c,t,1);)
3) Performs some internal calculations using C_UDMI(1) and some other cell properties that are pulled.


I am using the DO model, with solar load model. I have a thread that is dedicated to the object of concern, but not sure what to do with that, i.e. should I make it as a solid and apply the UDF to it, or are there ways of just extracting this information from a surface (with the necessary boundary conditions applied to it).

Thank you


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