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The sidewall-localized mode in a resonant precessing cylinder
Kong, Dali1; Liao, Xinhao2; Zhang, Keke1
2014-05-01
Source PublicationPHYSICS OF FLUIDS
ISSN1070-6631
Volume26Issue:5Pages:7
Corresponding AuthorKong, Dali()
AbstractWe investigate, via direct numerical simulation using a finite-element method, the precessionally driven flow of a homogeneous fluid confined in a fluid-filled circular cylinder that rotates rapidly about its symmetry axis and precesses about a different axis that is fixed in space. Our numerical simulation, after validating with the asymptotic analytical solution for a weakly precessing cylinder and with the constructed exact solution for the strongly nonlinear problem, focuses on the strongly precessing flow at asymptotically small Ekman numbers. An unusual form of the resonant precessing flow is found when the precessing rate is sufficiently large and the corresponding non-linearity is sufficiently strong. The nonlinear precessing flow is marked by a sidewall-localized non-axisymmetric traveling wave and a wall-localized axisymmetric shear together with an overwhelmingly dominant interior rigid-body rotation whose direction and magnitude substantially reduce the angular momentum of the rotating fluid system. (C) 2014 AIP Publishing LLC.
DOI10.1063/1.4876924
WOS KeywordROTATING FLUID LAYER ; CONVECTION ; FLOW
Indexed BySCI
Language英语
WOS Research AreaMechanics ; Physics
WOS SubjectMechanics ; Physics, Fluids & Plasmas
WOS IDWOS:000337103900003
PublisherAMER INST PHYSICS
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Document Type期刊论文
Identifierhttp://libir.pmo.ac.cn/handle/332002/27802
Collection中国科学院紫金山天文台
Corresponding AuthorKong, Dali
Affiliation1.Univ Exeter, Dept Math Sci, Exeter EX4 4QE, Devon, England
2.Chinese Acad Sci, Key Lab Planetary Sci, Shanghai Astron Observ, Shanghai 200030, Shanghai, Peoples R China
Recommended Citation
GB/T 7714
Kong, Dali,Liao, Xinhao,Zhang, Keke. The sidewall-localized mode in a resonant precessing cylinder[J]. PHYSICS OF FLUIDS,2014,26(5):7.
APA Kong, Dali,Liao, Xinhao,&Zhang, Keke.(2014).The sidewall-localized mode in a resonant precessing cylinder.PHYSICS OF FLUIDS,26(5),7.
MLA Kong, Dali,et al."The sidewall-localized mode in a resonant precessing cylinder".PHYSICS OF FLUIDS 26.5(2014):7.
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