摘要
本文采用厚边界层理论建立了考虑两相耦合效应的气固两相湍流边界层方程用以研究激波与壁面粉尘的相互作用。方程中考虑了压力梯度，Ｓａｆｆｍａｎ升力和湍流扩散等因素对颗粒飞行轨迹的影响，并用Ｍｉｒｅｋ方程作为边界条件使方程组封闭可解。数值计算时，经适当变换的气相方程组用ＢＯＸ格式，拉格朗日坐标中的颗粒相方程用Ｒｕｎ－ｇｅ－Ｋｕｔｔａ法，而源项则用颗粒源法和求质量加权的平均值获得。计算结果与某些实验结果较为吻合。
A set of equations of gas-particle turbulent boundary lay-er considering two-phase coupling effects have been derived based on the thick boundary theory,where influences of many factors on the particle trajectories,such as pressure gradient, Saffman lift force and turbulent diffusion etc,are included. Mirels′equation is employed as a boundary condition to close the equations.The transformed equations of gas phase are solved by using the box method and the improved PSIC(particle source in cell)method and the mass powered average values are employ-ed to deal with the source terms in equations.computed and measured results are in good agreement.
出处
《空气动力学学报》
CSCD
北大核心
1995年第1期99-104,共6页
Acta Aerodynamica Sinica
基金
国家自然科学基金
关键词
激波
两相流
湍流边界层
数值模拟
shock wave,two-phase flow, turbulent boundary lay-er,numerical simulation.
