dorsal/arxiv
View SchemaEquilibrium solutions of the shallow water equations
| Authors | Peter B. Weichman, Dean M. Petrich |
|---|---|
| Categories | |
| ArXiv ID | physics/0008236 |
| URL | https://arxiv.org/abs/physics/0008236 |
| DOI | 10.1103/PhysRevLett.86.1761 |
Abstract
A statistical method for calculating equilibrium solutions of the shallow water equations, a model of essentially 2-d fluid flow with a free surface, is described. The model contains a competing acoustic turbulent {\it direct} energy cascade, and a 2-d turbulent {\it inverse} energy cascade. It is shown, nonetheless that, just as in the corresponding theory of the inviscid Euler equation, the infinite number of conserved quantities constrain the flow sufficiently to produce nontrivial large-scale vortex structures which are solutions to a set of explicitly derived coupled nonlinear partial differential equations.
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"date_modified": "2026-03-02T18:00:32.423000Z",
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"abstract": "A statistical method for calculating equilibrium solutions of the shallow\nwater equations, a model of essentially 2-d fluid flow with a free surface, is\ndescribed. The model contains a competing acoustic turbulent {\\it direct}\nenergy cascade, and a 2-d turbulent {\\it inverse} energy cascade. It is shown,\nnonetheless that, just as in the corresponding theory of the inviscid Euler\nequation, the infinite number of conserved quantities constrain the flow\nsufficiently to produce nontrivial large-scale vortex structures which are\nsolutions to a set of explicitly derived coupled nonlinear partial differential\nequations.",
"arxiv_id": "physics/0008236",
"authors": [
"Peter B. Weichman",
"Dean M. Petrich"
],
"categories": [
"physics.flu-dyn",
"physics.ao-ph"
],
"doi": "10.1103/PhysRevLett.86.1761",
"title": "Equilibrium solutions of the shallow water equations",
"url": "https://arxiv.org/abs/physics/0008236"
},
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