{ "id": "0902.4247", "version": "v2", "published": "2009-02-24T21:35:31.000Z", "updated": "2009-10-15T12:57:04.000Z", "title": "On the rate of convergence of the two-dimensional $α$-models of turbulence to the Navier-Stokes equations", "authors": [ "Y. Cao", "E. S. Titi" ], "comment": "29 pages", "categories": [ "math-ph", "math.MP" ], "abstract": "Rates of convergence of solutions of various two-dimensional $\\alpha-$regularization models, subject to periodic boundary conditions, toward solutions of the exact Navier-Stokes equations are given in the $L^\\infty$-$L^2$ time-space norm, in terms of the regularization parameter $ \\alpha$, when $\\alpha$ approaches zero. Furthermore, as a paradigm, error estimates for the Galerkin approximation of the exact two-dimensional Leray-$\\alpha$ model are also presented in the $L^\\infty$-$L^2$ time-space norm. Simply by the triangle inequality, one can reach the error estimates of the solutions of Galerkin approximation of the $\\alpha$-regularization models toward the exact solutions of the Navier-Stokes equations in the two-dimensional periodic boundary conditions case.", "revisions": [ { "version": "v2", "updated": "2009-10-15T12:57:04.000Z" } ], "analyses": { "subjects": [ "35A30", "35Q35", "65M12", "65M15", "76D05" ], "keywords": [ "convergence", "two-dimensional periodic boundary conditions case", "regularization models", "time-space norm", "error estimates" ], "note": { "typesetting": "TeX", "pages": 29, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2009arXiv0902.4247C" } } }