sergio authored Dec 10, 2021 and Andrew Heather committed Dec 15, 2021

ENH: Copying alphatLiquid value to alphatVapour for boiling regimes.

When using correlations for boiling regimes the phases next to the
wall are not relevant to these. Therefore the alphat is copied
accordingly from the alphat for liquid.
Only in the sub-cooling RPI model the partition of heat flux
between vapour and liquid is considered.