| PHYSICS OF GASES, PLASMAS, AND ELECTRIC DISCHARGES |
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Suppression of the Kelvin-Helmholtz instability by coating in the double-cone ignition scheme |
| Yuan-Kai Xie(谢元凯)1,2, Cheng-Long Zhang(张成龙)2, Yi-Zhen Cheng(程翊真)1,2, and Ying-Jun Li(李英骏)2,† |
1 School of Science, China University of Mining and Technology, Beijing 100083, China;
2 State Key Laboratory for Tunnel Engineering, China University of Mining and Technology, Beijing 100083, China |
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Abstract 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.
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Received: 30 July 2024
Revised: 09 September 2024
Accepted manuscript online: 10 October 2024
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PACS:
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52.57.-z
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(Laser inertial confinement)
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52.30.Ex
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(Two-fluid and multi-fluid plasmas)
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47.20.Ft
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(Instability of shear flows (e.g., Kelvin-Helmholtz))
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| Fund: Project supported by the Strategic Priority Research Program of Chinese Academy of Sciences (Grant No. XDA 25051000). |
Corresponding Authors:
Ying-Jun Li
E-mail: lyj@aphy.iphy.ac.cn
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Cite this article:
Yuan-Kai Xie(谢元凯), Cheng-Long Zhang(张成龙), Yi-Zhen Cheng(程翊真), and Ying-Jun Li(李英骏) Suppression of the Kelvin-Helmholtz instability by coating in the double-cone ignition scheme 2024 Chin. Phys. B 33 125203
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