The Rayleigh-Taylor instability in inertial fusion, astrophysical plasma and flames
Artikel i vetenskaplig tidskrift, 2007

Previous results are reviewed and new results are presented on the Rayleigh-Taylor instability in inertial confined fusion, flames and supernovae including gravitational and thermonuclear explosion mechanisms. The instability couples micro-scale plasma effects to large-scale hydrodynamic phenomena. In inertial fusion the instability reduces target compression. In supernovae the instability produces large-scale convection, which determines the fate of the star. The instability is often accompanied by mass flux through the unstable interface, which may have either a stabilizing or a destabilizing influence. Destabilization happens due to the Darrieus-Landau instability of a deflagration front. Still, it is unclear whether the instabilities lead to well-organized large-scale structures (bubbles) or to relatively isotropic turbulence (mixing layer)

DETONATION

PROPAGATION

ABLATION

EXPLOSION

FRONTS

NEUTRINO TRANSPORT

NUMERICAL-SIMULATION

SUPERNOVAE

WHITE-DWARFS

CYLINDRICAL-TUBES

STABILITY

Författare

V. Bychkov

Umeå universitet

M. Modestov

Umeå universitet

V. Akkerman

Umeå universitet

Stanford Center for Turbulence Research

Lars-Erik Eriksson

Chalmers, Tillämpad mekanik

Plasma Physics and Controlled Fusion

0741-3335 (ISSN) 1361-6587 (eISSN)

Vol. 49 12B B513-B520

Ämneskategorier

Maskinteknik

DOI

10.1088/0741-3335/49/12B/S49