This is a model for a convective heat transfer for interior, room-facing surfaces.
The parameter conMod determines the model that is used to compute
the heat transfer coefficient:
conMod=
Buildings.HeatTransfer.Types.InteriorConvection.Fixed, then
the convective heat transfer coefficient is set to the value specified by the parameter
hFixed.
conMod=
Buildings.HeatTransfer.Types.InteriorConvection.Temperature, then
the convective heat tranfer coefficient is a function of the temperature difference.
The convective heat flux is computed using
isFloor to is_floor,
and isCeiling to is_ceiling,
for consistency with naming convention.
homotopyInitialization to a constant.homotopy operator.