摘要
利用有限差分方法并基于分叉理论计算了矩形截面多孔介质腔体中浮力对流的分叉结构；绘制出几种典型情形的流线图和等温线图；讨论了对流模式的转换过程；对于几种较低的模式的转换。
The buoyancy convective flows in rectangular cross section cavity of porous media saturated with fluid and heated form below are studied.The finite difference methods are used to study the bifuraction structure based on the bifurcation theory.Some typical figures of streamline and isotherm are given.The model exchange mechanisms of convection are discussed.Numenical results indude critical Rayleigh numbers and critical aspect ratios for exchange of some lower modes.
出处
《计算物理》
CSCD
北大核心
1997年第1期99-105,共7页
Chinese Journal of Computational Physics
基金
中国科学院渗流力学课题资助
关键词
浮力对流
渗流
分叉
模式转换
多孔介质
convective heat transfer
flow through porous media
bifurcation
model exchange.
