{ "id": "1210.0487", "version": "v1", "published": "2012-10-01T17:58:38.000Z", "updated": "2012-10-01T17:58:38.000Z", "title": "The lifetime of shape oscillations of a bubble in an unbounded, inviscid and compressible fluid with surface tension", "authors": [ "Ovidiu Costin", "Saleh Tanveer", "Michael I. Weinstein" ], "comment": "14 pages, submitted", "categories": [ "math.AP", "math-ph", "math.MP", "physics.flu-dyn" ], "abstract": "General perturbations of a spherical gas bubble in a compressible and inviscid fluid with surface tension were proved in Shapiro and Weinstein (2011), in the linearized approximation, to decay exponentially, $\\sim e^{-\\Gamma t}, \\Gamma>0$, as time advances. Formal asymptotic and numerical evidence led to the conjecture that $\\Gamma \\approx \\frac{A}{\\epsilon} \\frac{We}{\\epsilon^{2}} \\exp(-B \\frac{We}{\\epsilon^2})$, where $0<\\epsilon\\ll1$ is the Mach number, We is the Weber number, and $A$ and $B$ are positive constants. In this paper, we prove this conjecture and calculate $A$ and $B$ to leading order in $\\epsilon$.", "revisions": [ { "version": "v1", "updated": "2012-10-01T17:58:38.000Z" } ], "analyses": { "keywords": [ "surface tension", "shape oscillations", "compressible fluid", "general perturbations", "inviscid fluid" ], "note": { "typesetting": "TeX", "pages": 14, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2012arXiv1210.0487C" } } }