{ "id": "1302.1301", "version": "v1", "published": "2013-02-06T09:47:50.000Z", "updated": "2013-02-06T09:47:50.000Z", "title": "Exact solutions with singularities to ideal hydrodynamics of inelastic gases", "authors": [ "Olga S Rozanova" ], "comment": "8 pages, 4 figures", "categories": [ "math-ph", "math.AP", "math.MP" ], "abstract": "We construct a large family of exact solutions to the hyperbolic system of 3 equations of ideal granular hydrodynamics in several dimensions for arbitrary adiabatic index $\\gamma$. In dependence of initial conditions these solutions can keep smoothness for all times or develop singularity. In particular, in the 2D case the singularity can be formed either in a point or along a line. For $\\gamma=-1$ the problem is reduced to the system of two equations, related to a special case of the Chaplygin gas. In the 1D case this system can be written in the Riemann invariant and can be treated in a standard way. The solution to the Riemann problem in this case demonstrate an unusual and complicated behavior.", "revisions": [ { "version": "v1", "updated": "2013-02-06T09:47:50.000Z" } ], "analyses": { "subjects": [ "35L60", "76N10", "35L67" ], "keywords": [ "exact solutions", "inelastic gases", "ideal hydrodynamics", "singularity", "arbitrary adiabatic index" ], "note": { "typesetting": "TeX", "pages": 8, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2013arXiv1302.1301R" } } }