monte carlo radiation model
Hello sir,
In conjugate heat transfer problem i am using monte carlo (MC) radiation model. For solid (Brick wall) domain i have selected Thermal radiation monte carlo number of histories  10000 Transfer mode  surface to surface spectral model  Gray Scattering model  none For fluid(AIR) domain not selected any radiation model because air is transparent to radiation.is this approach correct or i have to select radiation model for air domain also.and sir in CFX is it radiation depends on number of elements. Thank you sir, Sunil patil 
If the rays go through the domain then the domain need a radiation model to calculate the rays  even if they just go straight through.
Also  would this model work with the Discrete Transfer model? It is MUCH faster and easier to use, if it is appropriate. 
Like Glenn said, The discrete transfer model sound like it would be more appropriate since the fluid medium is not involved here.

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