IMECH-IR  > 国家微重力实验室
Elastic instability in the thermocapillary convection at low Reynolds numbers
Hu KX(胡凯鑫); Liu R(刘荣); He, Meng; Chen QS(陈启生); Hu, KX
2017-12-01
发表期刊JOURNAL OF NON-NEWTONIAN FLUID MECHANICS
卷号250页码:43-51
ISSN0377-0257
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.

关键词Viscoelastic Elastic Instability Thermocapillary
DOI10.1016/j.jnnfm.2017.10.009
收录类别SCI ; EI
语种英语
WOS记录号WOS:000418215700005
关键词[WOS]VISCOELASTIC FLUIDS ; CHANNEL FLOWS ; COUETTE-FLOW ; POLYMER-SOLUTION ; SURFACE-TENSION ; LIQUID BRIDGES ; AMPLIFICATION ; STABILITY ; DISTURBANCES ; LAYERS
WOS研究方向Mechanics
WOS类目Mechanics
项目资助者National Science Foundation of China(11402271 ; Ningbo University ; 11532015)
论文分区二类/Q1
力学所作者排名3
引用统计
文献类型期刊论文
条目标识符http://dspace.imech.ac.cn/handle/311007/72231
专题国家微重力实验室
通讯作者Hu, KX
推荐引用方式
GB/T 7714
Hu KX,Liu R,He, Meng,et al. Elastic instability in the thermocapillary convection at low Reynolds numbers[J]. JOURNAL OF NON-NEWTONIAN FLUID MECHANICS,2017,250:43-51.
APA Hu KX,Liu R,He, Meng,Chen QS,&Hu, KX.(2017).Elastic instability in the thermocapillary convection at low Reynolds numbers.JOURNAL OF NON-NEWTONIAN FLUID MECHANICS,250,43-51.
MLA Hu KX,et al."Elastic instability in the thermocapillary convection at low Reynolds numbers".JOURNAL OF NON-NEWTONIAN FLUID MECHANICS 250(2017):43-51.
条目包含的文件
条目无相关文件。
个性服务
推荐该条目
保存到收藏夹
查看访问统计
导出为Endnote文件
谷歌学术
谷歌学术中相似的文章
[Hu KX(胡凯鑫)]的文章
[Liu R(刘荣)]的文章
[He, Meng]的文章
百度学术
百度学术中相似的文章
[Hu KX(胡凯鑫)]的文章
[Liu R(刘荣)]的文章
[He, Meng]的文章
必应学术
必应学术中相似的文章
[Hu KX(胡凯鑫)]的文章
[Liu R(刘荣)]的文章
[He, Meng]的文章
相关权益政策
暂无数据
收藏/分享
所有评论 (0)
暂无评论
 

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。