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二维不可压缩流体Kelvin-Helmholtz不稳定性的二次谐波产生

物理学报, 2008, 57(5): 3038-3043.
DOI: 10.7498/aps.57.3038
CSTR: 32037.14.aps.57.3038

Second harmonic generation by the Kelvin-Helmholtz instability for two-dimensional incompressible fluid

Acta Phys. Sin., 2008, 57(5): 3038-3043.
DOI: 10.7498/aps.57.3038
CSTR: 32037.14.aps.57.3038
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  • 摘要

    推导了Kelvin-Helmholtz(KH)不稳定性二次谐波产生的理论公式，利用该公式得到的二次谐波增长的弱非线性结果与LARED-S程序的模拟结果符合.二维模拟定出了KH不稳定性单模非线性增长的阈值.

     

    Abstract

    A model of second harmonic generation by Kelvin-Helmholtz (KH) instability is presented. Weakly nonlinear theoretical results of the growth of the second harmonic agree well with the results of the LARED-S code. Nonlinear threshold of the KH instability for the single mode perturbation is determined by two-dimensional simulation.

     

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