dc.contributor.author | Dai, Zifeng | en_GB |
dc.contributor.author | Zhang, Keke | en_GB |
dc.contributor.author | Liao, X. | en_GB |
dc.contributor.author | Schubert, Gerald | en_GB |
dc.date.accessioned | 2013-03-04T15:34:02Z | en_GB |
dc.date.accessioned | 2013-03-20T12:33:20Z | |
dc.date.issued | 2008-07-08 | en_GB |
dc.description.abstract | Hydrothermal convection of pore water with a temperature-dependent viscosity within a permeable, internally heated, moderately thin spherical shell is investigated by both a perturbation analysis and a direct numerical simulation. The analysis and simulation are mainly focused on a thin spherical shell in that convective instabilities are characterized by the spherical harmonic degree l=6 with a 13-fold mathematical degeneracy. Four different three-dimensional analytical solutions of convection are derived by removing the degeneracy through the nonlinear effect. A direct numerical simulation of the nonlinear problem is also carried out, showing satisfactory agreement between the analytical solutions and the numerical simulations. | en_GB |
dc.identifier.citation | Vol. 101 (2), article 028501 | en_GB |
dc.identifier.doi | 10.1103/PhysRevLett.101.028501 | en_GB |
dc.identifier.uri | http://hdl.handle.net/10036/4404 | en_GB |
dc.language.iso | en | en_GB |
dc.publisher | American Physical Society | en_GB |
dc.title | Hydrothermal convection in moderately thin spherical shells | en_GB |
dc.type | Article | en_GB |
dc.date.available | 2013-03-04T15:34:02Z | en_GB |
dc.date.available | 2013-03-20T12:33:20Z | |
dc.identifier.issn | 0031-9007 | en_GB |
exeter.place-of-publication | United States | en_GB |
dc.description | Copyright © 2008 The American Physical Society | en_GB |
dc.identifier.eissn | 1079-7114 | en_GB |
dc.identifier.journal | Physical Review Letters | en_GB |