Hi all researcher,

I needs help to determine solar heat flux if I have a value of solar radiation (w/m2) and solar absorptivity coefficient (alpha). Does it it have any formula? I want to assign at wall boundary condition in fluent. As I found in the paper, solar heat gain in wire qs = aplha x diameter x solar itensity. But, the unit is in W/m.

I hope whose are have experience using solar heat flux in fluent can share the knowledge. Thank for advanced.

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