{ "id": "1001.2850", "version": "v1", "published": "2010-01-16T19:47:16.000Z", "updated": "2010-01-16T19:47:16.000Z", "title": "Derivation and analysis of a new 2D Green-Naghdi system", "authors": [ "Samer Israwi" ], "categories": [ "math.AP" ], "abstract": "We derive here a variant of the 2D Green-Naghdi equations that model the propagation of two-directional, nonlinear dispersive waves in shallow water. This new model has the same accuracy as the standard $2D $ Green-Naghdi equations. Its mathematical interest is that it allows a control of the rotational part of the (vertically averaged) horizontal velocity, which is not the case for the usual Green-Naghdi equations. Using this property, we show that the solution of these new equations can be constructed by a standard Picard iterative scheme so that there is no loss of regularity of the solution with respect to the initial condition. Finally, we prove that the new Green-Naghdi equations conserve the almost irrotationality of the vertically averaged horizontal component of the velocity.", "revisions": [ { "version": "v1", "updated": "2010-01-16T19:47:16.000Z" } ], "analyses": { "keywords": [ "2d green-naghdi system", "derivation", "green-naghdi equations conserve", "standard picard iterative scheme", "usual green-naghdi equations" ], "publication": { "doi": "10.1088/0951-7715/23/11/009", "journal": "Nonlinearity", "year": 2010, "month": "Nov", "volume": 23, "number": 11, "pages": 2889 }, "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2010Nonli..23.2889I" } } }