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Old   April 24, 2013, 23:07
Smile monte carlo radiation model
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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 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
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Old   April 25, 2013, 07:16
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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.
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Old   April 25, 2013, 08:59
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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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