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- Title
Ablation effects in weakly nonlinear stage of the ablative Rayleigh–Taylor instability.
- Authors
Hasegawa, Susumu; Nishihara, Katsunobu
- Abstract
Weakly nonlinear stage of the ablative Rayleigh-Taylor instability has been studied by the perturbation theory. Mode coupling of linear growing waves with wave numbers kA and kB drives new excited waves with wave numbers k0 (= kA ± kB, 2kA, 2kB). We have investigated time evolution of the excited waves and found that the ablation effect plays an important role even in the nonlinear stage to reduce amplitude of the excited waves. Differences between an ablation surface and a classical contact surface have been discussed. Dependence of the excited wave amplitude on the wavenumber k0, the ablation velocity va, and the effective gravity g is also investigated.
- Publication
Laser & Particle Beams, 1996, Vol 14, Issue 1, p45
- ISSN
0263-0346
- Publication type
Article
- DOI
10.1017/S0263034600009745