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Memorias de investigación
Research Publications in journals:
Self-consistent stability analysis of spherical shocks.
Year:2010
Research Areas
  • Physics - Plasma and fluid
Information
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.
International
Si
JCR
Si
Title
ASTROPHYSICS AND SPACE SCIENCE
ISBN
0004-640X
Impact factor JCR
1,404
Impact info
Volume
DOI 1007/s10509-010-0563-z
Journal number
From page
0
To page
6
Month
DICIEMBRE
Ranking
Participants
  • Autor: Fco. Javier Sanz Recio (UPM)
  • Autor: S. Bouquet
  • Autor: M. Murakami
Research Group, Departaments and Institutes related
  • Creador: Grupo de Investigación: Grupo de Investigación en Fusión Inercial y Física de Plasmas
  • Departamento: Física Aplicada a la Ingeniería Aeronáutica
S2i 2019 Observatorio de investigación @ UPM con la colaboración del Consejo Social UPM
Cofinanciación del MINECO en el marco del Programa INNCIDE 2011 (OTR-2011-0236)
Cofinanciación del MINECO en el marco del Programa INNPACTO (IPT-020000-2010-22)