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Preprint 2008-037

Global L solutions of the compressible Euler Equations with spherical symmetry

Naoki Tsuge

Abstract: We study the compressible Euler equations with spherical symmetry surrounding a solid ball. For the spherically symmetric flow, the global existence of L entropy weak solutions has not yet been obtained except a special case. In this paper, we prove the existence of global solutions in the more general case. We construct approximate solutions by using a modified Godunov scheme. The main point is to obtain an L bound for the approximate solutions.

Paper:
Available as PDF (519 Kbytes).
Author(s):
Naoki Tsuge,
Publishing information:
Comments:
Updated 2009-02-01.
Submitted by:
; 2008-11-11.