汽-液两相流激波研究  

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

作　　者：赵良举[1] 王飞[2] 高虹[1] 唐经文[1] 袁悦祥[1] 

机构地区：[1]重庆大学动力工程学院,400030 [2]中国核动力院空泡物理和自然循环重点实验室,成都610041

出　　处：《核动力工程》2007年第4期25-28,共4页Nuclear Power Engineering

基　　金：国家自然科学基金(50406011);重点实验室基金(51482180104JW2003)资助

摘　　要：汽-液两相流激波是汽水引射式增压换热器增压的主要原因,然而鲜见相关研究。本文通过建立数学模型分析计算,对汽-液两相流动的正激波进行了研究,并与理想气体激波进行比较分析。在两相激波后汽相接近完全凝结,激波前马赫数与空泡率对激波有较大影响。与理想气体激波比较发现,两相流激波前后压力和马赫数的变化趋势与理想气体激波是一致的。可用能分析证明,激波过程是一个不可逆过程,激波后的熵增加,可用能减少,遵守热力学第二定律。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 between two-phase and single phase shock waves. The analysis of available energy shows that the shock process is an irreversible process with entropy increase.

关 键 词：汽-液两相流 激波 热力学分析 

分 类 号：TK123[动力工程及工程热物理—工程热物理]