The sidewall-localized mode in a resonant precessing cylinder

	The sidewall-localized mode in a resonant precessing cylinder
	Kong, Dali1 ; Liao, Xinhao2 ; Zhang, Keke 1
刊名	PHYSICS OF FLUIDS
	2014-05-01
卷号	26 期号:5 页码:051703
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标题词	Science & Technology ; Technology ; Physical Sciences
类目[WOS]	Mechanics ; Physics, Fluids & Plasmas
研究领域[WOS]	Mechanics ; Physics
关键词[WOS]	ROTATING FLUID LAYER ; CONVECTION ; FLOW
收录类别	SCI
语种	英语
WOS记录号	WOS:000337103900003
内容类型	期刊论文
源URL	[http://119.78.226.72/handle/331011/16070]
专题	上海天文台_行星科学重点实验室
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):051703.
APA	Kong, Dali,Liao, Xinhao,&Zhang, Keke.(2014).The sidewall-localized mode in a resonant precessing cylinder.PHYSICS OF FLUIDS,26(5),051703.
MLA	Kong, Dali,et al."The sidewall-localized mode in a resonant precessing cylinder".PHYSICS OF FLUIDS 26.5(2014):051703.