The sidewall-localized mode in a resonant precessing cylinder

doi:10.1063/1.4876924

	The sidewall-localized mode in a resonant precessing cylinder
	Kong, Dali 1; Liao, Xinhao 2; Zhang, Keke 1
刊名	PHYSICS OF FLUIDS
	2014-05-01
卷号	26 期号:5 页码:7
ISSN号	1070-6631
DOI	10.1063/1.4876924
通讯作者	Kong, Dali()
英文摘要	We 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.
WOS关键词	ROTATING FLUID LAYER ; CONVECTION ; FLOW
WOS研究方向	Mechanics ; Physics
语种	英语
出版者	AMER INST PHYSICS
WOS记录号	WOS:000337103900003
内容类型	期刊论文
源URL	[http://libir.pmo.ac.cn/handle/332002/27840]
专题	中国科学院紫金山天文台
通讯作者	Kong, Dali
作者单位	1.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
推荐引用方式 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.