Boundary Heat Sources
The sum of the boundary heat sources added by different boundary conditions is available in the variable, Qb,tot (SI unit: W/m2). This variable Qbtot is the sum of:
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Qb, which is the boundary heat source added by the Boundary Heat Source boundary condition.
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Qsh, which is the boundary heat source added by the Electromagnetic Heating condition (described for the Joule Heating interface in the COMSOL Multiphysics Reference Manual).
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Qs, which is the boundary heat source added by a Layer Heat Source subfeature of a thin layer, see Heat Source (Thin Layer, Thin Film, Fracture).