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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.
Source PublicationACTA MECHANICA SINICA
2016
Volume32Issue:6Pages:1031-1043
ISSN0567-7718
AbstractThe 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.
KeywordMud Interface Instability Kelvin-helmholtz Instability Interfacial Modes
DOI10.1007/s10409-016-0599-6
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Indexed BySCI ; EI ; CSCD
Language英语
WOS IDWOS:000389199200007
WOS KeywordMud ; Interface instability ; Kelvin-Helmholtz instability ; Interfacial modes
WOS Research AreaEngineering ; Mechanics
WOS SubjectEngineering, Mechanical ; Mechanics
Funding OrganizationNational Natural Science Foundation of China [11172307, 11232012, 11572332] ; 973 Program [2014CB046200] ; Strategic Priority Research Program of the Chinese Academy of Sciences [XDB22040203]
DepartmentLMFS水环境流体力学(LEM)
Classification二类
Citation statistics
Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/59938
Collection非线性力学国家重点实验室
Corresponding AuthorZhou, 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.
Recommended Citation
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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