水蒸气超音速非平衡凝结流动中的激波效应  

SHOCK EFFECT IN SUPERSONIC NON-EQUILIBRIUM CONDENSING STEAM FLOW

作　　者：杨勇[1] 沈胜强[1] 

机构地区：[1]大连理工大学海洋能源利用与节能教育部重点实验室,辽宁大连116024

出　　处：《工程热物理学报》2009年第4期635-637,共3页Journal of Engineering Thermophysics

基　　金：国家自然科学基金项目资助(No.50576007)

摘　　要：对水蒸气超音速非平衡凝结流动进行了数值模拟,研究了水蒸气超音速流动过程中的非平衡相变及凝结激波现象,揭示了压缩激波与核化凝结流动之间相互作用的非平衡流动规律。发现了激波的耗散效应对非平衡相变的影响,探讨了激波发生时,波阵面处核化凝结、液滴生长的变化规律。Supersonic non-equilibrium steam flow with spontaneous condensation was numerically studied. Based on the numerical simulation, the non-equilibrium thermodynamic phenomenons such as the homogenous nucleation and the condensation shock were investigated, and the interaction between the aerodynamic compression shock and the homogenous condensation was revealed. The dissipation effect of the shock on the non-equilibrium phase change was discovered and the influence of the shock on the thermodynamic processes of homogenous nucleation, droplet growth on the shock front was revealed.

关 键 词：水蒸气 超音速流动 凝结 激波 

分 类 号：O354[理学—流体力学]