Throttling High-Pressure Water
Water at high pressure expands adiabatically to a lower pressure (throttled) through a partially-closed valve. You can vary the inlet temperature T1 and outlet pressure P2. The exit stream is a vapor-liquid mixture, and the outlet temperature is the saturation temperature at the outlet pressure. An energy balance (ΔH = 0) determines the fractions of liquid and vapor in the exit stream, and they are shown in the bar graph.

Download the CDF file to view the simulation using the free Wolfram CDF player.