摘要
基于线性不稳定性理论,针对可压缩无黏气体介质中的可压缩黏性液体圆柱形射流过程的不稳定性,建立了多参数耦合数学模型,得到了具有普遍形式的射流扰动控制方程的分析解以及描述射流自由表面三维扰动发展的色散关系,最后给出了色散关系的数值求解方法。
Based on the linear instability method,the mathematical model coupled with multi-parameter for jet stability is developed,which is used to study the instabilities of the compressible viscous liquid round jet in a compressible inviscid airsteam.The general analysis solutions of perturbed governing equations of the jets are obtained,and the general 3-dimensional disperse relation which delineates the evolution of the disturbance on the liquid-gas interface is also derived.Finally,numerical methods for the disperse relation are given.
出处
《山东大学学报（理学版）》
CAS
CSCD
北大核心
2010年第8期87-92,共6页
Journal of Shandong University(Natural Science)
关键词
射流
不稳定性
数学模型
色散关系
jet
instability
mathematical model
disperse relation
