有水平流时双流体混合物对流的时空演变

被引:10
作者
李国栋
黄永念
机构
[1] 北京大学力学与工程科学系
[2] 湍流与复杂系统研究国家重点实验室
[3] 湍流与复杂系统研究国家重点实验室 北京
[4] 北京
基金
中国博士后科学基金;
关键词
双流体混合物; 行波对流; 水平流; 时空演化;
D O I
暂无
中图分类号
O359 [多相流];
学科分类号
080704 ;
摘要
在水平流动作用下混合流体(比如水和酒精)的Rayleigh-Benard对流,由于外部强制力和内在行波传播的耦合,构成了研究开流系统中斑图选择和非线性耗散波的理想模型系统,本文介绍对该系统初步的研究成果。首先简述了线性稳定性分析以及水平流对行波非线性分岔特性的影响,然后主要给出我们对这一系统在有限空间非周期边界条件下一维行波对流的研究成果,包括存在的时空形态及其特性对Rayleigh数和槽道长度的依赖关系,最后给出了进一步工作的展望。
引用
收藏
页码:263 / 269
页数:7
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