To process this page used the WaterSteamPro function "wspWSTX": sound velocity in double-phase area [m/sec] as function of temperature t [K], vapor fraction x [-].
Function uses function wspKSTX to calculate sound velocity in double-phase area conforming with thermodynamic. The function neglects the flow structure. Until version 5.6 this function used following formula: Wx = (1 - X)·Ww + X·Ws, where Ws = wspWSST, Ww = wspWSWT and X - vapor fraction, which disagrees with thermodynamic because it neglects the property jump at saturation line. The range of validity is double-phase (water-vapor) area.
WaterSteamPro is a registered trademark of Moscow Power Engineering Institute (Technical University).
Copyright (c) MPEI (TU), 1999-2010.
Copyright (c) Konstantin A. Orlov, 1999-2010.