Self-consistent stability analysis of spherical shocks.

Sanz Recio, Javier and Bouquet, S. and Murakami, M. (2010). Self-consistent stability analysis of spherical shocks.. "Astrophysics and Space Science" ; ISSN 0004-640X. https://doi.org/10.1007/s10509-010-0563-z.

Description

Title: Self-consistent stability analysis of spherical shocks.
Author/s:
  • Sanz Recio, Javier
  • Bouquet, S.
  • Murakami, M.
Item Type: Article
Título de Revista/Publicación: Astrophysics and Space Science
Date: December 2010
ISSN: 0004-640X
Subjects:
Freetext Keywords: Supernova-remnants - Spherical shocks - Dense shell - Stability analysis
Faculty: E.T.S.I. Aeronáuticos (UPM)
Department: Física Aplicada a la Ingeniería Aeronáutica [hasta 2014]
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

In this paper, we study self-similar solutions, and their linear stability as well, describing the flow within a spherical shell with finite thickness, expanding according to a power law of time, t q , where q>0. The shell propagates in a medium with initially uniform density and it is bounded by a strong shock wave at its outer border while the inner face is submitted to a time-dependent uniform pressure. For q=2/5, the well-known Sedov–Taylor solution is recovered. In addition, although both accelerated and decelerated shells can be unstable against dynamic perturbations, they exhibit highly different behaviors. Finally, the dispersion relation derived earlier by Vishniac (Vishniac, E.T. in Astrophys. J. 274:152, 1983) for an infinitely thin shell is obtained in the limit of an isothermal shock wave.

More information

Item ID: 7661
DC Identifier: http://oa.upm.es/7661/
OAI Identifier: oai:oa.upm.es:7661
DOI: 10.1007/s10509-010-0563-z
Official URL: http://www.springerlink.com/content/c182183776506803/
Deposited by: Memoria Investigacion
Deposited on: 01 Jul 2011 11:11
Last Modified: 20 Apr 2016 16:44
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