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Suppression of the Kelvin-Helmholtz instability by coating in the double-cone ignition scheme

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Suppression of the Kelvin-Helmholtz instability by coating in the double-cone ignition scheme
In order to address the issue of gold mixing caused by the Kelvin-Helmholtz instability(KHI)in the double-cone ignition(DCI)scheme,we investigate the growth rate of the KHI at the bi-interface of the DCI scheme after applying a coating.This is done by solving the hydrodynamic equations for an ideal incompressible fluid using linear theory.Ultimately,it is discovered that applying a coating with a thickness slightly above h=0.5(λ+10 μm)and a density somewhat lower than that of the target layer can effectively reduce the growth rate of interfacial KHI.This work provides theoretical references for studying the bi-interface KHI in the DCI scheme.

coatingKelvin-Helmholtz instabilitydouble-cone ignition schemegrowth rate

谢元凯、张成龙、程翊真、李英骏

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School of Science,China University of Mining and Technology,Beijing 100083,China

State Key Laboratory for Tunnel Engineering,China University of Mining and Technology,Beijing 100083,China

coating Kelvin-Helmholtz instability double-cone ignition scheme growth rate

2024

中国物理B(英文版)
中国物理学会和中国科学院物理研究所

中国物理B(英文版)

CSTPCDEI
影响因子:0.995
ISSN:1674-1056
年,卷(期):2024.33(12)