Systems of Hydrodynamic Type that Approximate Two-Dimensional Ideal Fluid Equations
- Authors: Dymnikov V.P.1, Perezhogin P.A.1
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Affiliations:
- Institute of Numerical Mathematics
- Issue: Vol 54, No 3 (2018)
- Pages: 232-241
- Section: Article
- URL: https://journals.rcsi.science/0001-4338/article/view/148551
- DOI: https://doi.org/10.1134/S0001433818030040
- ID: 148551
Cite item
Abstract
Statistical properties of different finite-dimensional approximations of two-dimensional ideal fluid equations are studied. A special class of approximations introduced by A.M. Obukhov (systems of hydrodynamic type) is considered. Vorticity distributions over area and quasi-equilibrium coherent structures are studied. These coherent structures are compared to structures occurring in a viscous fluid with random forcing.
About the authors
V. P. Dymnikov
Institute of Numerical Mathematics
Author for correspondence.
Email: dymnikov@inm.ras.ru
Russian Federation, Moscow, 119333
P. A. Perezhogin
Institute of Numerical Mathematics
Email: dymnikov@inm.ras.ru
Russian Federation, Moscow, 119333