Validation of full cavitation model in cryogenic fluids

作     者：CAO XiaoLi ZHANG XiaoBin QIU LiMin GAN ZhiHua 

作者机构：Institute of Refrigeration and Cryogenics Zhejiang University Hangzhou 310027 China 

出 版 物：《Chinese Science Bulletin》 (CHINESE SCIENCE BULLETIN)

年 卷 期：2009年第54卷第10期

页      面：1633-1640页

核心收录：

学科分类：080705[工学-制冷及低温工程] 080703[工学-动力机械及工程] 080704[工学-流体机械及工程] 07[理学] 070205[理学-凝聚态物理] 08[工学] 0807[工学-动力工程及工程热物理] 0702[理学-物理学] 

基　　金：Supported by the National Natural Science Foundation of China (Grant No. 50706042) 

主　　题：空化模型 低温液体 验证 数值模拟 低温流体 稳态计算 液体燃料 推进系统 

摘      要：Numerical simulation of cavitation in cryogenic fluids is important in improving the stable operation of the propulsion system in liquid-fuel rocket. It also represents a broader class of problems where the fluid is operating close to its critical point and the thermal effects of cavitation are pronounced. The present article focuses on simulating cryogenic cavitation by implementing the full cavitation model, coupled with energy equation, in conjunction with iterative update of the real fluid properties at local temperatures. Steady state computations are then conducted on hydrofoil and ogive in liquid nitrogen and hydrogen respectively, based on which we explore the mechanism of cavitation with thermal effects. Comprehensive comparisons between the simulation results and experimental data as well as previous computations by other researchers validate the full cavitation model in cryogenic fluids. The sensitivity of cavity length to cavitation number is also examined.