The sidewall-localized mode in a resonant precessing cylinder
文献类型：期刊论文
| 作者 | Kong, Dali1; Liao, Xinhao2; Zhang, Keke1 |
| 刊名 | PHYSICS OF FLUIDS
 |
| 出版日期 | 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 |
| WOS记录号 | WOS:000337103900003 |
| 出版者 | AMER INST PHYSICS |
| 源URL | [http://libir.pmo.ac.cn/handle/332002/27801]  |
| 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. |
入库方式： OAI收割
来源：紫金山天文台
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