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Compressible Rayleigh--Taylor Instability with Preheat in Inertial Confinement Fusion |
| FAN Zheng-Feng1;LUO Ji-Sheng1;YE Wen-Hua2 |
| 1Department of Mechanics, Tianjin University, Tianjin 3000722Laboratory of computational physics, Institute of Applied Physics and Computational Mathematics, Beijing 100088 |
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| Cite this article: |
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FAN Zheng-Feng, LUO Ji-Sheng, YE Wen-Hua 2007 Chin. Phys. Lett. 24 2308-2311 |
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Abstract The compressible Rayleigh--Taylor instability of accelerated ablation front is analysed in consideration of the preheat effects, and the corresponding eigen-problem is solved numerically using the fourth-order accurate two-point compact difference scheme. Both the growth rate and perturbation profiles are obtained, and the obtained growth rate is close to the results of direct numerical simulation. Our results show that the growth rate is more reduced and the cutoff wave length becomes longer as preheat increases.
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| Keywords:
52.35.Py
47.20.Ma
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Received: 26 January 2007
Published: 25 July 2007
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| PACS: |
52.35.Py
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(Macroinstabilities (hydromagnetic, e.g., kink, fire-hose, mirror, ballooning, tearing, trapped-particle, flute, Rayleigh-Taylor, etc.))
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47.20.Ma
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(Interfacial instabilities (e.g., Rayleigh-Taylor))
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