喷管中泡状气液两相流影响因素分析  

Analysis of factors impacting bubbly flows through converging-diverging nozzle

作　　者：魏英杰[1] 付英杰[1] 张嘉钟[1] 

机构地区：[1]哈尔滨工业大学航天学院,黑龙江哈尔滨150001

出　　处：《推进技术》2009年第3期267-272,共6页Journal of Propulsion Technology

摘　　要：为了获得边界条件对缩放喷管中泡状流的影响,采用包含气泡动力学的连续均质混合流模型,基于求解Rayleigh-Plesset方程的变步长龙格-库塔方法,提出一种稳态泡状流求解的迭代修正计算方法,实现了喷管中流场计算。获得了气泡半径、混合密度在喷管中变化情况。将不同边界条件下的计算结果进行对比分析,得到了气泡平衡半径、喷管入口含气率及入口速度对流动的影响。To investigate the impact of boundary conditions to the bubbly flows through a converging-diverging nozzle,an iterative correction algorithm was developed for solving the steady bubbly flows with the homogeneous continuum bubbly mixture model,based on the variable step Runge-Kutta scheme for Rayleigh-Plesset equation.The flow field through the nozzle was simulated subsequently,and variations of spherical bubbles radius and mixture density in the nozzle were obtained.Moreover a series of computations have be...

关 键 词：缩放喷管 泡状流 数值仿真 

分 类 号：O359[理学—流体力学]