Use the Evaporation node to define an evaporative source. This feature is usually used in combination with a Surface Temperature node, which sets the temperature of the source.

For each species, enter a Vapor pressure pvap, G (SI unit: Pa) for the evaporating material. The default is 0 Pa.

For each species, enter an Evaporation coefficient av, G (dimensionless) for the evaporating material. The default is 1.