Oscillation and evolution characteristics of nanofluid thermocapillary convection in rectangular cavity

doi:10.1016/j.molliq.2023.122890

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	Oscillation and evolution characteristics of nanofluid thermocapillary convection in rectangular cavity
	Zhou, Xiaoming; Dai, Cheng; Jiang, Yanni; Chen QS(陈启生)
通讯作者	Jiang, Yanni(ynjiang@hhu.edu.cn)
发表期刊	JOURNAL OF MOLECULAR LIQUIDS
	2023-11-15
卷号	390 页码:10
ISSN	0167-7322
摘要	To analyze the oscillation and evolution characteristics of nanofluid thermocapillary convection instability, a two-phase mixture model was utilized to simulate nanofluid thermocapillary convection in a rectangular cavity and investigate the impact of nanoparticle volume fraction on the oscillatory flow. The results indicate that the two-phase mixture model has a lower critical temperature difference compared to the single-phase model, and the oscillation mode exhibits distinct changes for small nanoparticle volume fractions. At a high Marangoni number, the thermocapillary convection displays periodic oscillatory behavior, with the flow field composed of several dynamic convection vortices. An increase in nanoparticle volume fraction results in a decrease in the critical temperature difference, as well as the amplitude and variation range of temperature oscillation. However, the oscillation period shows an approximate linear increase. Furthermore, there is a non-uniform distribution of nanoparticles at the vicinity of solid wall, especially a significant concentration gradient near the side wall.
关键词	Nanofluid Thermocapillary convection Flow instability Two-phase mixture models
DOI	10.1016/j.molliq.2023.122890
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:001076709300001
关键词[WOS]	MARANGONI CONVECTION ; HEAT-TRANSFER ; DRIVEN CONVECTION ; FLOW ; VISCOSITY ; MIXTURE
WOS研究方向	Chemistry ; Physics
WOS类目	Chemistry, Physical ; Physics, Atomic, Molecular & Chemical
资助项目	National Natural Science Foundation of China[12102128] ; National Natural Science Foundation of China[51976080] ; opening project of CAS Key Laboratory of Microgravity[NML202305]
项目资助者	National Natural Science Foundation of China ; opening project of CAS Key Laboratory of Microgravity
论文分区	一类
力学所作者排名	3+
RpAuthor	Jiang, Yanni
引用统计
文献类型	期刊论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/93085
专题	微重力重点实验室
推荐引用方式 GB/T 7714	Zhou, Xiaoming,Dai, Cheng,Jiang, Yanni,et al. Oscillation and evolution characteristics of nanofluid thermocapillary convection in rectangular cavity[J]. JOURNAL OF MOLECULAR LIQUIDS,2023,390:10.
APA	Zhou, Xiaoming,Dai, Cheng,Jiang, Yanni,&陈启生.(2023).Oscillation and evolution characteristics of nanofluid thermocapillary convection in rectangular cavity.JOURNAL OF MOLECULAR LIQUIDS,390,10.
MLA	Zhou, Xiaoming,et al."Oscillation and evolution characteristics of nanofluid thermocapillary convection in rectangular cavity".JOURNAL OF MOLECULAR LIQUIDS 390(2023):10.

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