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Instability of the interface in two-layer flows with large viscosity contrast at small Reynolds numbers
Liu JB; Zhou JF(周济福); Zhou, JF (reprint author), Chinese Acad Sci, Inst Mech, Key Lab Mech Fluid Solid Coupling Syst, Beijing 100190, Peoples R China.; Zhou, JF (reprint author), Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China.
2016
发表期刊ACTA MECHANICA SINICA
卷号32期号:6页码:1031-1043
ISSN0567-7718
摘要The Kelvin-Helmholtz instability is believed to be the dominant instability mechanism for free shear flows at large Reynolds numbers. At small Reynolds numbers, a new instability mode is identified when the temporal instability of parallel viscous two fluid mixing layers is extended to current-fluid mud systems by considering a composite error function velocity profile. The new mode is caused by the large viscosity difference between the two fluids. This interfacial mode exists when the fluid mud boundary layer is sufficiently thin. Its performance is different from that of the Kelvin-Helmholtz mode. This mode has not yet been reported for interface instability problems with large viscosity contrasts. These results are essential for further stability analysis of flows relevant to the breaking up of this type of interface.
关键词Mud Interface Instability Kelvin-helmholtz Instability Interfacial Modes
DOI10.1007/s10409-016-0599-6
URL查看原文
收录类别SCI ; EI
语种英语
WOS记录号WOS:000389199200007
关键词[WOS]Mud ; Interface instability ; Kelvin-Helmholtz instability ; Interfacial modes
WOS研究方向Engineering ; Mechanics
WOS类目Engineering, Mechanical ; Mechanics
项目资助者National Natural Science Foundation of China [11172307, 11232012, 11572332] ; 973 Program [2014CB046200] ; Strategic Priority Research Program of the Chinese Academy of Sciences [XDB22040203]
课题组名称LMFS水环境流体力学(LEM)
论文分区二类
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文献类型期刊论文
条目标识符http://dspace.imech.ac.cn/handle/311007/59938
专题非线性力学国家重点实验室
通讯作者Zhou, JF (reprint author), Chinese Acad Sci, Inst Mech, Key Lab Mech Fluid Solid Coupling Syst, Beijing 100190, Peoples R China.; Zhou, JF (reprint author), Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China.
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GB/T 7714
Liu JB,Zhou JF,Zhou, JF ,et al. Instability of the interface in two-layer flows with large viscosity contrast at small Reynolds numbers[J]. ACTA MECHANICA SINICA,2016,32(6):1031-1043.
APA Liu JB,周济福,Zhou, JF ,&Zhou, JF .(2016).Instability of the interface in two-layer flows with large viscosity contrast at small Reynolds numbers.ACTA MECHANICA SINICA,32(6),1031-1043.
MLA Liu JB,et al."Instability of the interface in two-layer flows with large viscosity contrast at small Reynolds numbers".ACTA MECHANICA SINICA 32.6(2016):1031-1043.
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