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Memorias de investigación
Communications at congresses:
Self-consistent stability analysis of spherical shocks.
Year:2010
Research Areas
  • Phisics
Information
Abstract
In this paper, we study self-similar solutions, and their linear stability as well, describing the ¿ow within a spherical shell with ¿nite thickness, expanding according to a power law of time, tq, 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 recov¬ered. In addition, although both accelerated and decelerated shells can be unstable against dynamic perturbations, they exhibit highly different behaviors. Finally, the dispersion re¬lation derived earlier by Vishniac (Vishniac, E.T. in Astro¬phys. J. 274:152, 1983) for an in¿nitely thin shell is obtained in the limit of an isothermal shock wave.
International
Si
Congress
HEDLA 2010, 8th International Conference on High Energy density Phyiscs Laboratory Astrophysics.
960
Place
Pasadena, California
Reviewers
Si
ISBN/ISSN
DOI 10.1007/s10509-010-0563-z
Start Date
15/03/2010
End Date
18/03/2010
From page
0
To page
6
Astrophys Space Sci .
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)