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Layes G, Jourdan G, Houas L. Distortion of a spherical gaseous interface accelerated by a plane shock wave. Phys Rev Lett. 2003;91(17):174502doi: 10.1103/PhysRevLett.91.174502.
Layes, G., Jourdan, G., & Houas, L. (2003). Distortion of a spherical gaseous interface accelerated by a plane shock wave. Physical review letters, 91(17), 174502. https://doi.org/10.1103/PhysRevLett.91.174502
Layes, Guillaume, et al. "Distortion of a spherical gaseous interface accelerated by a plane shock wave." Physical review letters vol. 91,17 (2003): 174502. doi: https://doi.org/10.1103/PhysRevLett.91.174502
Layes G, Jourdan G, Houas L. Distortion of a spherical gaseous interface accelerated by a plane shock wave. Phys Rev Lett. 2003 Oct 24;91(17):174502. doi: 10.1103/PhysRevLett.91.174502. Epub 2003 Oct 24. PMID: 14611354.
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Phys Rev Lett. 2003 Oct 24;91(17):174502. doi: 10.1103/PhysRevLett.91.174502. Epub 2003 Oct 24.

Distortion of a spherical gaseous interface accelerated by a plane shock wave.

Physical review letters

Guillaume Layes, Georges Jourdan, Lazhar Houas

Affiliations

  1. Polytech'Marseille, Département Mécanique Energétique, IUSTIUMR CNRS 6595, Technopôle de Château Gombert, 5 rue Enrico Fermi, 13013 Marseilles, France.

PMID: 14611354 DOI: 10.1103/PhysRevLett.91.174502

Abstract

The evolution of a spherical gaseous interface accelerated by a plane weak shock wave has been investigated in a square cross section shock tube via a multiple exposure shadowgraph diagnostic. Different gaseous bubbles, i.e., helium, nitrogen, and krypton, were introduced in air at atmospheric pressure in order to study the Richtmyer-Meshkov instability in the spherical geometry for negative, close to zero, and positive initial density jumps across the interface. We show that the bubble distortion is strongly different for the three cases and we present the experimental velocity and volume of the developed vortical structures. We prove that at late times the bubble velocities reach constant values which are in good agreement with previous calculations. Finally, we point out that, in our flow conditions, the gaseous bubble motion and shape are mainly influenced by vorticity and aerodynamic forces.

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