超音速汽液两相流激波的理论研究  

THEORETICAL RESEARCH ON THE CONDENSATION SHOCK WAVE IN SUPERSONIC STEAM-WATER TWO-PHASE FLOW

作　　者：刘继平[1] 严俊杰[1] 邢秦安[1] 陈国慧[1] 

机构地区：[1]西安交通大学动力工程多相流国家重点实验室,陕西西安710049

出　　处：《工程热物理学报》2005年第z1期105-108,共4页Journal of Engineering Thermophysics

基　　金：国家自然科学基金资助项目(No.50106010)西安交通大学自然科学基金项目资助

摘　　要：建立了超音速汽液两相流激波过程的数学模型,得到了激波前后的流动关系,并对激波后的流动规律进行了初步分析,建立了两相扩压段的优化模型。研究结果表明,在激波后,流体压力上升,速度下降,与单相气体的正激波特性相似;其对应的音速与汽液两相流体的空泡率、压力及液相密度等因素有关。The mathematical model was developed to illustrate the supersonic steam-water two-phase flow shock wave. The relationships between the states before and after the shock wave was obtained, the primary analysis has been done to show the flow mechanism and a optimization model has been studied based on the variant functional theory. According to the present work, the pressure of the fluid and the velocity decrease while across the shock wave, which is similar to that of the single compressible gas. Then the corresponding sonic velocity of the two-phase flow is determined by the void ratio, pressure and density of the liquid phase.

关 键 词：音速 汽液两相流 激波 

分 类 号：TK124[动力工程及工程热物理—工程热物理]