Open AccessSimulation of Rayleigh-Taylor instability growth rate of laser accelerated plant target. Final report
Author(s) -
С. А. Бельков,
С. В. Бондаренко,
O. A. Vinokurov,
Г. Г. Кочемасов,
L.S. Mkhitarian
Publication year - 1996
Language(s) - English
Resource type - Reports
DOI - 10.2172/376384
Subject(s) - instability , rayleigh–taylor instability , physics , rayleigh scattering , plane (geometry) , nonlinear system , laser , pulse (music) , phase plane , lambda , mechanics , optics , mathematics , geometry , quantum mechanics , detector
This report presents the research results for the time point when the Rayleigh-Taylor instability converts to the nonlinear stage as well as the computational results for the interaction of two modes of Rayleigh-Taylor instability when initial perturbations are concentrated at the ablation front (problem (a)) and on the rear side (problem (b)) of the plane target. As was shown in the report for the first phase, for a target of 3 {mu}m thick the existence time of the nonlinear stage is extremely low and does not allow to track the evolution pattern. In it was shown that the plane target with {Delta}{sub 0}=5 {mu}m is more preferable for this goal. Therefore all the computations presented here relate to the target with the indicated thickness. The laser pulse parameters are remained unchanged J{sub L}=10{sup 15} W/cm{sup 2}, {lambda}=0.35 {mu}m