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Flow bifurcation routes to chaos of thermocapillary convection for low Prandtl number fluid in shallow annular pool with surface heat dissipation
Zhang L; Li YR; Wu CM; Liu QS(刘秋生)
2018-03-01
发表期刊INTERNATIONAL JOURNAL OF THERMAL SCIENCES
卷号125页码:23-33
ISSN1290-0729
摘要In order to understand clearly the transition characteristics of thermocapillary convection of low Prandtl number fluid in shallow annular pool with surface heat dissipation, some bifurcation routes to chaos of thermocapillary convection have been numerically investigated by using the finite volume method in this paper. The annular pool was filled with the low Prandtl (Pr) number fluid of Pr = 0.011. The range of Biot number is from 0 to 1. Results indicate that the flow bifurcation route of thermocapillary convection depends intensively on surface heat dissipation. When surface heat dissipation is smaller, with the increase of Marangoni number the flow bifurcation sequence of thermocapillary convection is two-dimensional axisymmetric steady flow -> three-dimensional steady flow -> coexisting hydrothermal waves and radial moving waves -> radial moving waves -> chaos. When surface heat dissipation is larger, the bifurcation sequence becomes simple as two-dimensional axisynunetaic steady flow -> hydrothermal waves -> chaos. Furthermore, every bifurcation of thermocapillary convection is always accompanied by the variations of the wave number and the oscillatory frequency. Furthermore, the temperature fluctuation amplitude on the free surface increases gradually with the increase of Marangoni number.
关键词Flow bifurcation Thermocapillary convection Low Prandtl number Shallow annular pool Surface heat dissipation
DOI10.10164/j.ijthermalsci.2017.11.010
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收录类别SCI ; EI
语种英语
WOS记录号WOS:000423646300003
关键词[WOS]3-DIMENSIONAL NUMERICAL-SIMULATION ; HORIZONTAL TEMPERATURE-GRADIENT ; LIQUID LAYERS ; SILICON MELT ; BINARY-MIXTURE ; BUOYANCY FLOW ; INSTABILITY ; EVAPORATION ; MECHANISMS ; TRANSITION
WOS研究方向Thermodynamics ; Engineering, Mechanical
WOS类目Thermodynamics ; Engineering
项目资助者National Natural Science Foundation of China [51776022, 11532015]
论文分区一类
力学所作者排名4
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文献类型期刊论文
条目标识符http://dspace.imech.ac.cn/handle/311007/77915
专题国家微重力实验室
作者单位1.Chongqing Univ, Key Lab Low Grade Energy Utilizat Technol & Syst, Minist Educ, Coll Power Engn, Chongqing 400044, Peoples R China
2.Sichuan Int Studies Univ, Chongqing Nanfang Translators Coll, Chongqing 401120, Peoples R China
3.Chinese Acad Sci, Inst Mech, Key Lab Micrograv, Natl Micrograv Lab, Beijing 100190, Peoples R China
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Zhang L,Li YR,Wu CM,et al. Flow bifurcation routes to chaos of thermocapillary convection for low Prandtl number fluid in shallow annular pool with surface heat dissipation[J]. INTERNATIONAL JOURNAL OF THERMAL SCIENCES,2018,125:23-33.
APA Zhang L,Li YR,Wu CM,&刘秋生.(2018).Flow bifurcation routes to chaos of thermocapillary convection for low Prandtl number fluid in shallow annular pool with surface heat dissipation.INTERNATIONAL JOURNAL OF THERMAL SCIENCES,125,23-33.
MLA Zhang L,et al."Flow bifurcation routes to chaos of thermocapillary convection for low Prandtl number fluid in shallow annular pool with surface heat dissipation".INTERNATIONAL JOURNAL OF THERMAL SCIENCES 125(2018):23-33.
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