摘要
通过流体力学基本方程的数值模拟,研究了二维矩形腔体中水平来流对Rayleigh-Benard对流斑图的影响。在水平流动的参数U=0时获得了两种波数的定常对流斑图;当来流参数U=2.982时获得了行进波对流斑图;在来流参数U=17时,发现了一种局部行进波斑图。文中还讨论了这些对流斑图的动力学特性。
Via the numerical simulation of fluid mechanics basic equations, this paper deals with the influence of lateral flows in a 2D rectangular upon Rayleigh-Benard convection patterns. When the lateral flow is U = 0, the stationary overturning convection patterns with two types of wave numbers are acquired, and when the lateral flow is U = 2. 982, the travelling wave convection pattern is obtained. If the lateral flow increases to U = 17, a kind of locailized travelling wave pattern is found. Further, the dynamics of the convection patterns is also discussed in this paper.
出处
《西安理工大学学报》
CAS
北大核心
2009年第2期223-226,共4页
Journal of Xi'an University of Technology
基金
教育部留学回国人员基金资助项目(220542)
陕西省教育厅专项计划基金资助项目(05JK271)
西安理工大学高学历基金资助项目(220327)
