IMECH-IR  > 国家微重力实验室
矩形液池热毛细对流转捩途径研究
Alternative Title中国科学院力学研究所国家微重力实验室;
姜欢; 段俐; 康琦
Source Publication第八届全国流体力学学术会议论文摘要集
2014
Conference Name第八届全国流体力学学术会议
Conference Date2014-09-18
Conference Place中国甘肃兰州
Abstract通过矩形液池热毛细对流实验模型,研究热毛细对流的转捩过程。搭建了矩形液池热毛细对流实验硬件和软件平台,包括温度控制系统、热电偶温度测量系统和Labview软件平台,通过测量流体内部温度振荡情况,详细研究了热毛细对流的转捩途径。实验发现,矩形液池热毛细对流的转捩过程依次经历了定常、规则振荡、不规则振荡的阶段。对于不同Pr的硅油在不同长高比情况下,通向混沌的途径不同。随着温差的增加,Pr在16以下和Pr=25、长高比为26的硅油热毛细对流主要以准周期分岔的转捩方式为主,Pr>25的则以倍周期分岔的转捩方式为主,其中还会伴随有切分岔形式。实验中还用红外热像仪观察了液层表面的温度场分布情况,观察到了表...
Keyword热毛细对流 温度振荡 转捩途径
DepartmentNML微重力实验流体力学
Funding Organization国家自然科学基金(11032011,11372328);; 中俄合作研究项目资助
Language中文
Document Type会议论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/52058
Collection国家微重力实验室
Recommended Citation
GB/T 7714
姜欢,段俐,康琦. 矩形液池热毛细对流转捩途径研究[C]第八届全国流体力学学术会议论文摘要集,2014.
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