Spherical Richtmyer-Meshkov instability for axisymmetric flow

Magnetohydrodynamic implosion symmetry and suppression of Richtmyer-Meshkov instability in an octahedrally symmetric field

We present numerical simulations of ideal magnetohydrodynamics showing suppression of the Richtmyer-Meshkov instability in spherical implosions in the presence of an octahedrally symmetric magnetic field. This field configuration is of interest owing to its high degree of spherical symmetry in comparison with previously considered dihedrally symmetric fields. The simulations indicate that the o...

Numerical Study of Axisymmetric Richtmyer–Meshkov Instability and Azimuthal Effect on Spherical Mixing

1 Department of Applied Mathematics and Statistics, University at Stony Brook, Stony Brook, New York 11794-3600; e-mail: [email protected] 2 Center for Data Intensive Computing, Brookhaven National Laboratory, Upton, New York 11793-6000. 3 Hydrodynamics Methods Group, Applied Physics Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545. Received March 8, 2001; accepted Sep...

Richtmyer - Meshkov instability in a spherical target with density variation

The motion of unstable fluid interface due to Richtmyer Meshkov (RM) instability incorporating with density variation has been studied in a spherical target using Lagrangian formulation. During the compression in Inertial Confinement Fusion (ICF) process, the density of deuterium tritium (DT) fuel increases 1000 times greater than the density of gaseous DT fuel within the core of spherical targ...

Non-linear dynamics of the Richtmyer-Meshkov instability in supernovae

We report analytical and numerical solutions describing the evolution of the coherent structure of bubbles and spikes in the Richtmyer-Meshkov instability in supernovae. It is shown that the dynamics of the flow is essentially non-local, and the nonlinear Richtmyer-Meshkov bubble flattens and decelerates.

Effects of magnetic fields on magnetohydrodynamic cylindrical and spherical Richtmyer-Meshkov instability