Nonlinear evolution of ablation-driven Rayleigh-Taylor instability

Details Nonlinear evolution of ablation-driven Rayleigh-Taylor instability Nonlinear evolution of ablation-driven Rayleigh-Taylor instability

Feb 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981phrvl..46..336m&link_type=abstract

Physical Review Letters, vol. 46, Feb. 2, 1981, p. 336-339.

Physics

70

Ablation, Laser Fusion, Laser Plasmas, Laser Targets, Magnetohydrodynamic Stability, Taylor Instability, Control Simulation, Energy Technology, Plasma Control, Plasma Density, Thin Walled Shells, Time Dependence

Scientific paper

Simulations of the Rayleigh-Taylor instability of ablatively accelerated thin-shell fusion targets show that the nonlinear evolution exhibits spike amplitude saturation due to ablative mass removal; the shell anterior surface evolves to a laminar (nonturbulent) quasistationary distorted state. The perturbed flow causes a significant departure from spherically symmetric behavior, but the laminar shell interior structure makes it appear possible to retain some of the advantages of larger-aspect-ratio fusion targets.

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