液相粘性对旋叶式分离器壁面液膜界面不稳定性的影响  

Effect of Liquid Viscosity on Film Interfacial Instability on the Wall of Cyclone Separator

作　　者：黄振[1] 肖泽军[1] 闫晓[1] 昝元锋 李勇[1] 袁德文[1] 

机构地区：[1]中国核动力研究设计院核反应堆热工水力技术重点实验室,成都610041

出　　处：《核动力工程》2015年第4期17-22,共6页Nuclear Power Engineering

摘　　要：对液相粘性条件下的旋叶式分离器壁面液膜稳定性进行研究。通过对粘性条件下液膜界面的受力和运动特性的分析,获得旋转流场中的气液界面动力学和运动学边界条件。利用势函数对动量方程和连续方程进行线性化处理,结合边界条件,建立粘性条件下的液膜界面色散方程,获得液膜界面稳定性的判定准则。结合液膜运动规律模型,编写液膜界面稳定性计算分析程序,对粘性条件下界面稳定性进行了分析,获得了液相粘性对旋叶式分离器内部液膜稳定性的影响规律。A theory study on film interface stability on the wall of cyclone ＇separator in viscous condition was performed in this paper. The dynamics boundary condition and kinematic boundary condition in the rotational flow field were obtained based on the stress analysis of film in viscous condition. Then the momentum equations and continuity equations of gas-liquid fluid were linearized by substitution of potential function. The dispersion relation of film interface wave in viscous condition was established by the combination of boundary conditions and the linearized equations. The judgment criteria for film interface stability was obtained. A code was developed according to the model of film motion and dispersion relation. The effect of liquid viscosity on the film interface stability in the cyclone separator was obtained based on the analysis of film interface stability in viscous condition.

关 键 词：粘性 旋叶式分离器 界面稳定性 

分 类 号：TL33[核科学技术—核技术及应用]