A numerical study of Richtmyer-Meshkov instability driven by cylindrical shocks

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journal

67 Scopus Citations
View graph of relations

Author(s)

Detail(s)

Original languageEnglish
Pages (from-to)974-992
Journal / PublicationPhysics of Fluids
Volume10
Issue number4
Publication statusPublished - Apr 1998
Externally publishedYes

Abstract

As an incident shock wave hits a material interface between two fluids of different densities, the interface becomes unstable. Small disturbances at the interface start to grow. This interfacial instability is known as a Richtmyer-Meshkov (RM) instability. It plays an important role in the studies of inertial confinement fusion and supernova. The majority of studies of the RM instability were in plane geometry - namely, plane shocks in Cartesian coordinates. We present a systematic numerical study of the RM instability driven by cylindrical shocks for both the imploding and exploding cases. The imploding (exploding) case refers to a cylindrical shock colliding with the material interface from the outside in (inside out). The phenomenon of reshock caused by the waves reflected from the origin is also studied. A qualitative understanding of this system has been achieved. Detailed studies of the growth rate of the fingers at the unstable interface are presented. © 1998 American Institute of Physics.

Citation Format(s)

A numerical study of Richtmyer-Meshkov instability driven by cylindrical shocks. / Zhang, Qiang; Graham, Mary Jane.

In: Physics of Fluids, Vol. 10, No. 4, 04.1998, p. 974-992.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journal