Two mode coupling of the ablative Rayleigh-Taylor instabilities

Xin J.; Yan R.; Wan Z. -H.; Sun D. -J.; Zheng J.; Zhang H.; Aluie H.; Betti R.

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Two mode coupling of the ablative Rayleigh-Taylor instabilities

机译：两种模式耦合的雷利泰勒稳定性

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The coupling and evolution of two-mode ablative Rayleigh-Taylor instability (ARTI) in two-dimensional geometry are studied via numerical simulations. We focus primarily on two scenarios: Coupling and bubble competition of a long and a short wavelength mode and of two short-wavelength modes. It is found that the long-wavelength modes tend to dominate in the nonlinear phase of the long-short coupling cases. The presence of the short-wavelength mode in the long-short cases enhances the total ARTI bubble vertex velocity. However, due to the formation of enclosed bubbles, this enhancement does not increase monotonically with the initial short-wavelength amplitude. Coupling of two short-wavelength modes forms a long-wavelength component which grows faster than each individual short-wavelength mode. Published under license by AIP Publishing.

机译：通过数值模拟研究了二维几何形状中的两模式射线泰勒不稳定性（ARTI）的耦合和演化。我们主要关注两种情况：长度和短波长模式的耦合和泡沫竞争和两个短波长模式。发现长波长模式倾向于在长短路耦合壳体的非线性相位中支配。在长短壳体中存在短波长模式，增强了总ARTI气泡顶点速度。然而，由于封闭气泡的形成，这种增强不会随着初始短波长幅度单调而变化。两种短波长度模式的耦合形成长波长分量，其比每个单独的短波长度更快地增长。通过AIP发布在许可证下发布。

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《Physics of plasmas》 |2019年第3期|共8页
作者
Xin J.; Yan R.; Wan Z. -H.; Sun D. -J.; Zheng J.; Zhang H.; Aluie H.; Betti R.;
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作者单位

Univ Sci &

Technol China Dept Modern Mech Hefei 230026 Anhui Peoples R China;

Univ Sci &

Technol China Dept Modern Mech Hefei 230026 Anhui Peoples R China;

Univ Sci &

Technol China Dept Modern Mech Hefei 230026 Anhui Peoples R China;

Univ Sci &

Technol China Dept Modern Mech Hefei 230026 Anhui Peoples R China;

Univ Sci &

Technol China Dept Engn &

Appl Phys Hefei 230026 Anhui Peoples R China;

Univ Rochester Dept Mech Engn Rochester NY 14627 USA;

Univ Rochester Dept Mech Engn Rochester NY 14627 USA;

Univ Rochester Dept Mech Engn Rochester NY 14627 USA;

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正文语种 eng
中图分类等离子体物理学;
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专利

1. Two mode coupling of the ablative Rayleigh-Taylor instabilities [J] . Xin J., Yan R., Wan Z. -H., Physics of plasmas . 2019,第3期

机译：两种模式耦合的雷利泰勒稳定性
2. Three-dimensional single-mode nonlinear ablative Rayleigh-Taylor instability [J] . Yan R., Betti R., Sanz J., Physics of plasmas . 2016,第2期

机译：三维单模非线性烧蚀瑞利泰勒不稳定性
3. Nonlinear evolution of jet-Like spikes from the single-mode ablative rayleigh-taylor instability with preheating [J] . Wang L., Ye W., Fan Z., Plasma Science & Technology . 2013,第10期

机译：单模烧蚀瑞利-泰勒不稳定性与预热的射流样尖峰的非线性演化
4. Ablative Richtmyer-Meshkov and Rayleigh-Taylor instabilities in direct-drive laser fusion and growth reduction by adiabat shaping [C] . A. Marocchino, S. Atzeni, A. Schiavi Conference on Plasma Physics . 2011

机译：通过绝地形激光融合和增长减少的Abiabat塑造，融合Richtmyer-Meshkov和Rayleigh-Taylor稳定性
5. The effects of convergent geometry on the ablative Rayleigh-Taylor instability in cylindrical implosions. [D] . Beck, James Bradley. 1996

机译：会聚的几何形状对圆柱内爆烧蚀瑞利泰勒不稳定性的影响。
6. Confinement-induced stabilization of the Rayleigh-Taylor instability and transition to the unconfined limit [O] . Samar Alqatari, Thomas E. Videbæk, Sidney R. Nagel, 2020

机译：限制诱导的Rayleigh-Taylor不稳定性和过渡到无占限的极限
7. Mixed-mode instability of a miscible interface due to coupling between Rayleigh-Taylor and double-diffusive convective modes [O] . Carballido Landeira, Jorge, Trevelyan, Philip, Almarcha, Christophe, 2013

机译：由于瑞利-泰勒和双扩散对流模式之间的耦合，导致混相界面的混合模式不稳定性
8. Rayleigh-Taylor Instability and Resulting Failure Modes of Ablatively Imploded Inertial-Fusion Targets [R] . Montierth, L., Morse, R. 1983

机译：Rayleigh-Taylor不稳定性和烧毁惯性 - 融合目标的破坏模式

Two mode coupling of the ablative Rayleigh-Taylor instabilities

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