dorsal/arxiv
View SchemaScaling properties of an inviscid mean-motion fluid model
| Authors | Balasubramanya T. Nadiga |
|---|---|
| Categories | |
| ArXiv ID | physics/0005063 |
| URL | https://arxiv.org/abs/physics/0005063 |
| Journal | Journal of Statistical Physics 98 (2000) 935-948 |
Abstract
An inviscid two-dimensional fluid model with nonlinear dispersion that arises simultaneously in coarse-grained descriptions of the dynamics of the Euler equation and in the description of non-Newtonian fluids of second grade is considered. The scaling of the equilibrium states of this model for conserved energy and enstrophy retains the corresponding scaling for the Euler equations on the large scales and at the same time greatly deemphasizes the importance of small scales. This is the first clear demonstration of the beneficial effect of nonlinear dispersion in the model, and should highlight its utility as a subgrid model in more realistic situations.
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"abstract": "An inviscid two-dimensional fluid model with nonlinear dispersion that arises\nsimultaneously in coarse-grained descriptions of the dynamics of the Euler\nequation and in the description of non-Newtonian fluids of second grade is\nconsidered. The scaling of the equilibrium states of this model for conserved\nenergy and enstrophy retains the corresponding scaling for the Euler equations\non the large scales and at the same time greatly deemphasizes the importance of\nsmall scales. This is the first clear demonstration of the beneficial effect of\nnonlinear dispersion in the model, and should highlight its utility as a\nsubgrid model in more realistic situations.",
"arxiv_id": "physics/0005063",
"authors": [
"Balasubramanya T. Nadiga"
],
"categories": [
"physics.flu-dyn"
],
"journal_ref": "Journal of Statistical Physics 98 (2000) 935-948",
"title": "Scaling properties of an inviscid mean-motion fluid model",
"url": "https://arxiv.org/abs/physics/0005063"
},
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