Does anyone have a method for calculating the speed of sound in wet steam?


The standard method works for dry or superheated steam, but breaks down rapidly at and below saturation temperature.


The 2015 paper by Šafařík, Nový, Jícha, and Hajšman "On the speed of sound in steam" shows a discontinuity in the speed vs dryness curves at about 0.98 dryness, but I do not know if that is supported by measurement.