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Titolo:
NONLINEAR RAYLEIGH-TAYLOR EVOLUTION OF A 3-DIMENSIONAL MULTIMODE PERTURBATION
Autore:
MARINAK MM; GLENDINNING SG; WALLACE RJ; REMINGTON BA; BUDIL KS; HAAN SW; TIPTON RE; KILKENNY JD;
Indirizzi:
LAWRENCE LIVERMORE NATL LAB LIVERMORE CA 94551
Titolo Testata:
Physical review letters
fascicolo: 20, volume: 80, anno: 1998,
pagine: 4426 - 4429
SICI:
0031-9007(1998)80:20<4426:NREOA3>2.0.ZU;2-W
Fonte:
ISI
Lingua:
ENG
Soggetto:
3-DIMENSIONAL SIMULATIONS; SINGLE-MODE; HYDRODYNAMIC INSTABILITIES; 3 DIMENSIONS; LARGE GROWTH; K-SHELL; NOVA; FUSION; IMPLOSIONS; HOT;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
38
Recensione:
Indirizzi per estratti:
Citazione:
M.M. Marinak et al., "NONLINEAR RAYLEIGH-TAYLOR EVOLUTION OF A 3-DIMENSIONAL MULTIMODE PERTURBATION", Physical review letters, 80(20), 1998, pp. 4426-4429

Abstract

The ablation front Rayleigh-Taylor evolution of a well-characterized 3D multimode surface perturbation was measured on a foil accelerated with an x-ray drive as it progressed into the weakly nonlinear regime. The perturbation pattern was locally random and consisted of modes within the first ten harmonics of a 300 mu m square. The pattern evolved into bubbles separated by narrow, interconnecting spike sheets, unambiguously indicating entry into the nonlinear regime. Nonlinear effects occurred when mode amplitudes were relatively small: eta(n) much less than lambda(n)/10. Experimental results are in quantitative agreement with results of our numerical simulations.

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Documento generato il 22/09/20 alle ore 17:23:50