Axially symmetric and latitudinally propagating nonlinear patterns in rotating spherical convection
文献类型：期刊论文
| 作者 | Kong, Dali1; Zhang, Keke2,3; Lam, Kameng3; Willis, Ashley P.4 |
| 刊名 | PHYSICAL REVIEW E
 |
| 出版日期 | 2018-09-06 |
| 卷号 | 98期号:3页码:5 |
| ISSN号 | 2470-0045 |
| DOI | 10.1103/PhysRevE.98.031101 |
| 通讯作者 | Kong, Dali() |
| 英文摘要 | We report a nonlinear phenomenon discovered in the classical problem of thermal convection in rapidly rotating, self-gravitating, internally heated Boussinesq fluid spheres. When linear convective instability (the most unstable mode of convection) is in the form of an axially symmetric, equatorially antisymmetric torsional oscillation, its equatorial symmetry must be broken by nonlinear effects and, consequently, the key properties of the primary solution bifurcating from the instability cannot be predicted on the basis of linear solutions at the onset of convection. We reveal that, when the supercritical Rayleigh number is in the vicinity of its critical value, the primary nonlinear solution is in the form of an axially symmetric, equatorially nonsymmetric, latitudinally propagating spatiotemporal pattern whose amplitude varies periodically, representing an unusual nonlinear phenomenon of thermal convection in rotating fluid spheres. |
| WOS关键词 | SHELLS |
| WOS研究方向 | Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000443920100001 |
| 出版者 | AMER PHYSICAL SOC |
| 源URL | [http://libir.pmo.ac.cn/handle/332002/21940]  |
| 专题 | 中国科学院紫金山天文台 |
| 通讯作者 | Kong, Dali |
| 作者单位 | 1.Shanghai Astron Observ, Key Lab Planetary Sci, Shanghai 200030, Peoples R China 2.Univ Exeter, Coll Engn Math & Phys Sci, Exeter EX4 4QE, Devon, England 3.Macau Univ Sci & Technol, Lunar & Planetary Sci Lab, Macau, Peoples R China 4.Univ Sheffield, Sch Math & Stat, Sheffield S3 7RH, S Yorkshire, England |
| 推荐引用方式 GB/T 7714 | Kong, Dali,Zhang, Keke,Lam, Kameng,et al. Axially symmetric and latitudinally propagating nonlinear patterns in rotating spherical convection[J]. PHYSICAL REVIEW E,2018,98(3):5. |
| APA | Kong, Dali,Zhang, Keke,Lam, Kameng,&Willis, Ashley P..(2018).Axially symmetric and latitudinally propagating nonlinear patterns in rotating spherical convection.PHYSICAL REVIEW E,98(3),5. |
| MLA | Kong, Dali,et al."Axially symmetric and latitudinally propagating nonlinear patterns in rotating spherical convection".PHYSICAL REVIEW E 98.3(2018):5. |
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来源：紫金山天文台
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