If the check-box indicating that the radiation mesh is not forming a closed domain has been checked, the temperature (in degre C) of the exterior has to be specified in that field. In that situation, one notices that the external domain behaves as a black body (emissivity of 1 can be specified)

If possible authors suggest to use preferably the imposed temperature functionality. It has the drawback to oblige users to mesh explicitely the opening but then the general algorithms are used ensuring conservativity at the radiation level and an emissivity different from 1 can be specified and can vary from one region of the opening to another.

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SYRTHES version : 4.1.0
Name help file : Bcr_Rpa_le.html
I. Rupp, C. Peniguel - january 2013
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