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The Rayleigh-Taylor instability in inertial fusion, astrophysical plasma and flames

V. Bychkov ; M. Modestov ; V. Akkerman ; Lars-Erik Eriksson (Institutionen för tillämpad mekanik)
Plasma Physics and Controlled Fusion (0741-3335). Vol. 49 (2007), 12B, p. B513-B520.
[Artikel, refereegranskad vetenskaplig]

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)

Nyckelord: NUMERICAL-SIMULATION, NEUTRINO TRANSPORT, CYLINDRICAL-TUBES, ABLATION, FRONTS, WHITE-DWARFS, SUPERNOVAE, PROPAGATION, DETONATION, EXPLOSION, STABILITY



Denna post skapades 2009-01-19.
CPL Pubid: 88486

 

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Institutionen för tillämpad mekanik (1900-2017)

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