Study of Shock Wave of Vapor-Liquid Two-Phase Mixture

The paper studies the shock wave of vapor-liquid two-phase mixture,which is very important in a pressure-gain steam injector.The mathematic model is built and the calculation is done.After the shock the vapor is nearly condensed completely and the upstream Mach number and the volume ratio of vapor are the most important factors to the shock.We also find the similar characters of pressure and Mach number be-tween two-phase and single phase shock waves.The analysis of available energy shows that the shock process is an irreversible process with entropy increase.