Physics – Plasma Physics
Scientific paper
Nov 1997
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997aps..dppgtp216b&link_type=abstract
American Physical Society, Division of Plasma Physics Meeting, November 17-21, 1997, abstract #gTuaP216.
Physics
Plasma Physics
Scientific paper
Supernova explosions are virtual cauldrons of hydrodynamic instability activity. Due to the exceedingly strong shock triggered by the explosion, the interface instabilities are insensitive to the initial pressure distribution and gravity. Thus, the instability development can be modeled in the laboratory, in laser driven experiments. We developed a weakly nonlinear theory of interface evolution extended to third order perturbation theory.We evaluate the growth of the fundamental mode and higher harmonics into bubbles and spikes during the early nonlinear stages of perturbation evolution. We will compare the predictions of the growth of pre-imposed 3D and 2D interface perturbations with experiments using the Nova laser to model supernovae interface evolution. Good agreement between theory, experiments, and simulations were demonstrated for 2D perturbation growth.
Berning M.
Glendinning Gail S.
Kane Jave
Remington Bruce A.
Rubenchik Alexander
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