{ "id": "1509.06218", "version": "v1", "published": "2015-09-21T13:24:23.000Z", "updated": "2015-09-21T13:24:23.000Z", "title": "Layer-averaged Euler and Navier-Stokes equations", "authors": [ "M. -O. Bristeau", "C. Guichard", "B. Di Martino", "J. Sainte-Marie" ], "categories": [ "math.NA" ], "abstract": "In this paper we propose a strategy to approximate incompressible free surface Euler and Navier-Stokes models. The main advantage of the proposed models is that the water depth is a dynamical variable of the system and hence the model is formulated over a fixed domain. The proposed strategy extends previous works approximating the Euler and Navier-Stokes systems using a multilayer description. Here, the needed closure relations are obtained using an energy-based optimality criterion instead of an asymptotic expansion. Moreover, the layer-averaged description is successfully applied to the Navier-Stokes system with a general form of the Cauchy stress tensor.", "revisions": [ { "version": "v1", "updated": "2015-09-21T13:24:23.000Z" } ], "analyses": { "keywords": [ "navier-stokes equations", "layer-averaged euler", "navier-stokes system", "approximate incompressible free surface euler", "cauchy stress tensor" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }