| 柱几何Rayleigh-Taylor不稳定性的数值模拟 |
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| 引用本文： | 吴俊峰, 叶文华, 张维岩. 柱几何Rayleigh-Taylor不稳定性的数值模拟[J]. 强激光与粒子束, 2003, 15(01). |
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| 作者姓名： | 吴俊峰 叶文华 张维岩 |
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| 作者单位： | 1.中国工程物理研究院 研究生部, 北京 1 00088;;;2.北京应用物理与计算数学研究所, 北京 1 00088 |
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| 摘 要： | 给出了柱几何中流体力学方程组及其在数值模拟中采用的计算方法。对二维柱几何Rayleigh-Taylor不稳定性进行数值模拟，在线性阶段与线性理论符合得很好；不稳定性增长进入非线性区域的阈值依赖于界面的位置，并且明显不同于平面情况。
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| 关 键 词： | 柱几何流体不稳定性 FCT算法 高精度格式 |
Numerical simulations of Rayleigh Taylor instability in cylindrical geometry |
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| wu jun feng, ye wen hua, zhang wei yan. Numerical simulations of Rayleigh Taylor instability in cylindrical geometry[J]. High Power Laser and Particle Beams, 2003, 15. |
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| Authors: | wu jun feng ye wen hua zhang wei yan |
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| Affiliation: | 1. Graduate School of CAEP,Beijing 100088,China;;;2. Institute of Applied Physics and Computational Mathematics,P.O.Box 8009,Beijing 100088,China |
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| Abstract: | The fluid equations and numerical algorithm are given to simulate two dimensional Rayleigh Taylor(RT) instability in cylindrical geometry in this paper. Simulation results agree well with the linear theory of RT instability. However the threshold at which nonlinear effects begin to become apparent in cylindrical geometry is clearly different from that in planar geometry and is related to the position of interface. |
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| Keywords: | hydrodynamic instability in cylindrical geometry fct algorithm high resolution scheme |
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