中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Elastic instability in the thermocapillary convection at low Reynolds numbers

文献类型:期刊论文

作者Hu KX(胡凯鑫); Liu R(刘荣); He M; Chen QS(陈启生); Chen QS(陈启生); He M(何蒙); Hu KX(胡开鑫); Liu R(刘荣)
刊名JOURNAL OF NON-NEWTONIAN FLUID MECHANICS
出版日期2017-12-01
卷号250页码:43-51
关键词Viscoelastic Elastic Instability Thermocapillary
ISSN号0377-0257
DOI10.1016/j.jnnfm.2017.10.009
文献子类Article
英文摘要

It is well known that the plane channel flows of UCM and Oldroyd-B fluids are linearly stable at low Reynolds numbers. However, an elastic instability is detected by modal analysis in the thermocapillary convection with straight streamlines. The instability appears when the Weissenberg number is in the order of 1. When the Reynolds number is small enough, the critical Weissenberg number is almost a constant, which only depends on the Marangoni number. The unstable waves include a wide range of wave number and can be streamwise and oblique. The free surface with thermocapillary effect is crucial for the instability, as it induces the normal stress in the basic flow and reduces the constraint on perturbations.

分类号二类/Q1
WOS关键词VISCOELASTIC FLUIDS ; CHANNEL FLOWS ; COUETTE-FLOW ; POLYMER-SOLUTION ; SURFACE-TENSION ; LIQUID BRIDGES ; AMPLIFICATION ; STABILITY ; DISTURBANCES ; LAYERS
WOS研究方向Mechanics
语种英语
WOS记录号WOS:000418215700005
资助机构National Science Foundation of China(11402271 ; Ningbo University ; 11532015)
源URL[http://dspace.imech.ac.cn/handle/311007/72231]  
专题力学研究所_国家微重力实验室
推荐引用方式
GB/T 7714
Hu KX,Liu R,He M,et al. Elastic instability in the thermocapillary convection at low Reynolds numbers[J]. JOURNAL OF NON-NEWTONIAN FLUID MECHANICS,2017,250:43-51.
APA 胡凯鑫.,刘荣.,He M.,陈启生.,Chen QS.,...&Liu R.(2017).Elastic instability in the thermocapillary convection at low Reynolds numbers.JOURNAL OF NON-NEWTONIAN FLUID MECHANICS,250,43-51.
MLA 胡凯鑫,et al."Elastic instability in the thermocapillary convection at low Reynolds numbers".JOURNAL OF NON-NEWTONIAN FLUID MECHANICS 250(2017):43-51.

入库方式: OAI收割

来源:力学研究所

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