Two-time scales inner solutions and motion of a geostrophic vortex
文献类型：期刊论文
| 作者 | Ling GC(凌国灿) ; Ting L(丁汝)
|
| 刊名 | Scientia Sinica Series A-Mathematical Physical Astronomical & Technical Sciences
 |
| 出版日期 | 1988 |
| 卷号 | 31期号:7页码:806-817 |
| 关键词 | geostrophic vortex core structure trajectory. |
| ISSN号 | 0253-5831 |
| 中文摘要 | Based on the authors' previous work, in this paper the systematical analyses on the motion and the inner solutions of a geostrophic vortex have been presented by means of thematched asymptotic expansion method with multiple time scales (S/gh001/2 and α S/gh001/2) and space scales. It has been shown that the leading inner solutions to the core structure in two-time scales analyses are identified with the results in normal one-time scale analyses. The time averages of the first-order solutions on short time variable τ are the same as the first-order solutions obtained in one normal time scale analyses. The geostrophic vortex induces an oscillatory motion in addition to moving with the background flow. The period, amplitude andthe deviation from the mean trajectory depend on the core structure and the initial conditions. The velocity of the motion of vortex center varies periodically and the time average of the velocity on short time variable τ is equal to the value of the local mean velocity. |
| 类目[WOS] | Multidisciplinary Sciences |
| 研究领域[WOS] | Science & Technology - Other Topics |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:A1988Q057600005 |
| 公开日期 | 2009-08-03 ; 2010-08-20 |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/39662]  |
| 专题 | 力学研究所_力学所知识产出(1956-2008) |
| 推荐引用方式 GB/T 7714 | Ling GC,Ting L. Two-time scales inner solutions and motion of a geostrophic vortex[J]. Scientia Sinica Series A-Mathematical Physical Astronomical & Technical Sciences,1988,31(7):806-817. |
| APA | 凌国灿,&Ting L.(1988).Two-time scales inner solutions and motion of a geostrophic vortex.Scientia Sinica Series A-Mathematical Physical Astronomical & Technical Sciences,31(7),806-817. |
| MLA | 凌国灿,et al."Two-time scales inner solutions and motion of a geostrophic vortex".Scientia Sinica Series A-Mathematical Physical Astronomical & Technical Sciences 31.7(1988):806-817. |
入库方式： OAI收割
来源：力学研究所
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