With the addition of the solar heating to simCFD 2013, it would be great to be able to include the absorptivity in the material properties (in addition to emissivity). A lot of materials deployed in the outside world have very different emissivity/absorptivity ratios on purpose. Although you can trick the solar flux in the flag manager, it would be easier/more useful if you could just assign a material property called 'solar absorptivity' and let the user assign a value. That way, if there are multiple materials with differing absorptivities in the same model, the setup and results would be easier/more accurate.
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