On the stability of combustion and laser-produced ablation fronts
- 1 October 1993
- journal article
- letter
- Published by AIP Publishing in Physics of Fluids B: Plasma Physics
- Vol. 5 (10) , 3822-3824
- https://doi.org/10.1063/1.860601
Abstract
A correct approach to the problem of a reduction of the growth rate of the Rayleigh–Taylor (RT) instability in an ablation wave is demonstrated in this paper by considering a slow combustion wave in a gravitational field. It is shown that both the supplementary condition required in the model of discontinuity and the reduction of the instability growth rate can be obtained only by solving the complete system of equations, including the equation of thermal conductivity and energy release which are responsible for the wave propagation and the finite thickness of the wave front. The point is that there is no stabilization of the growth rate of RT instability by a mass flow in the limit of zero thickness of the wave front. The reduction of the growth rate can be obtained rigorously for a finite thickness of the wave front only.Keywords
This publication has 14 references indexed in Scilit:
- Measurement and analysis of Rayleigh–Taylor instability in targets driven by incoherent laser radiationPhysics of Fluids B: Plasma Physics, 1993
- Numerical simulation of ablative Rayleigh–Taylor instabilityPhysics of Fluids B: Plasma Physics, 1991
- Hydrodynamic stability and the direct drive approach to laser fusionPhysics of Fluids B: Plasma Physics, 1990
- Rayleigh-Taylor instability growth rates in targets accelerated with a laser beam smoothed by induced spatial incoherencePhysical Review Letters, 1987
- Strongly Inhibited Rayleigh-Taylor Growth with 0.25-μm LasersPhysical Review Letters, 1986
- Self-consistent growth rate of the Rayleigh–Taylor instability in an ablatively accelerating plasmaPhysics of Fluids, 1985
- Rayleigh–Taylor instability in an inhomogeneous ablatively accelerated fluidPhysics of Fluids, 1983
- Rayleigh-Taylor and Kelvin-Helmholtz Instabilities in Targets Accelerated by Laser AblationPhysical Review Letters, 1982
- Stability of ablation and combustion frontsPhysics of Fluids, 1978
- Rayleigh-Taylor Instability and Laser-Pellet FusionPhysical Review Letters, 1974