The Ellipsoidal Vortex: A Novel Approach to Geophysical Turbulence
We review the development of the ellipsoidal vortex model within the field of geophysical fluid dynamics. This vortex model is built on the classical potential theory of ellipsoids and applies to large-scale fluid flows, such as those found in the atmosphere and oceans, where the dynamics are strong...
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| Format: | Article |
| Language: | English |
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Wiley
2015-01-01
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| Series: | Advances in Mathematical Physics |
| Online Access: | http://dx.doi.org/10.1155/2015/613683 |
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| _version_ | 1850167329884733440 |
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| author | William J. McKiver |
| author_facet | William J. McKiver |
| author_sort | William J. McKiver |
| collection | DOAJ |
| description | We review the development of the ellipsoidal vortex model within the field of geophysical fluid dynamics. This vortex model is built on the classical potential theory of ellipsoids and applies to large-scale fluid flows, such as those found in the atmosphere and oceans, where the dynamics are strongly affected by the Earth's rotation. In this large-scale limit the governing equations reduce to the quasi-geostrophic system, where all the dynamics depends on a single scalar field, the potential vorticity, which is a dynamical marker for vortices. The solution of this system is achieved by the inversion of a Poisson equation, that in the case of an ellipsoidal vortex can be solved exactly. From this ellipsoidal solution equilibria have been determined and their stability properties have been studied. Many studies have shown that this ellipsoidal vortex model, while being conceptually simple, is an extremely powerful tool in eliciting some of the fundamental characteristics of turbulent geophysical flows. |
| format | Article |
| id | doaj-art-e21fa1ea6be0445e9ca7f4b05e568ef0 |
| institution | OA Journals |
| issn | 1687-9120 1687-9139 |
| language | English |
| publishDate | 2015-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Mathematical Physics |
| spelling | doaj-art-e21fa1ea6be0445e9ca7f4b05e568ef02025-08-20T02:21:13ZengWileyAdvances in Mathematical Physics1687-91201687-91392015-01-01201510.1155/2015/613683613683The Ellipsoidal Vortex: A Novel Approach to Geophysical TurbulenceWilliam J. McKiver0ISMAR-CNR, Arsenale-Tesa 104, Castello 2737/F, 30122 Venice, ItalyWe review the development of the ellipsoidal vortex model within the field of geophysical fluid dynamics. This vortex model is built on the classical potential theory of ellipsoids and applies to large-scale fluid flows, such as those found in the atmosphere and oceans, where the dynamics are strongly affected by the Earth's rotation. In this large-scale limit the governing equations reduce to the quasi-geostrophic system, where all the dynamics depends on a single scalar field, the potential vorticity, which is a dynamical marker for vortices. The solution of this system is achieved by the inversion of a Poisson equation, that in the case of an ellipsoidal vortex can be solved exactly. From this ellipsoidal solution equilibria have been determined and their stability properties have been studied. Many studies have shown that this ellipsoidal vortex model, while being conceptually simple, is an extremely powerful tool in eliciting some of the fundamental characteristics of turbulent geophysical flows.http://dx.doi.org/10.1155/2015/613683 |
| spellingShingle | William J. McKiver The Ellipsoidal Vortex: A Novel Approach to Geophysical Turbulence Advances in Mathematical Physics |
| title | The Ellipsoidal Vortex: A Novel Approach to Geophysical Turbulence |
| title_full | The Ellipsoidal Vortex: A Novel Approach to Geophysical Turbulence |
| title_fullStr | The Ellipsoidal Vortex: A Novel Approach to Geophysical Turbulence |
| title_full_unstemmed | The Ellipsoidal Vortex: A Novel Approach to Geophysical Turbulence |
| title_short | The Ellipsoidal Vortex: A Novel Approach to Geophysical Turbulence |
| title_sort | ellipsoidal vortex a novel approach to geophysical turbulence |
| url | http://dx.doi.org/10.1155/2015/613683 |
| work_keys_str_mv | AT williamjmckiver theellipsoidalvortexanovelapproachtogeophysicalturbulence AT williamjmckiver ellipsoidalvortexanovelapproachtogeophysicalturbulence |