Author Topic: Guidelines for selecting a radiation model for beginners in Fluent  (Read 3173 times)

Offline william

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Just a quick list of radiation models available in Fluent and which one to use:
S2S for radiative exchange between surfaces. If the medium participates in the radiation exchange, DO and DTRM can be used for all range of optical thicknesses. P1 is preferred for optical thickness >1 and Roselland for optical thickness > 3.

S2S does not support symmetry boundaries. DTRM does not account for scattering. For particulate effects DO or P1 should be used. Only DO supports: semi-transparent walls, specular walls, non-gray radiation. Also DO is preferred if large localized heat sources are present.