Nonlinear interaction and energy loss by harmonics of perturbations propagating upstream are investigated. It is shown how nonlinear interaction of harmonics can form new harmonics.

中文翻译：

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强超音速相互作用中扰动传播过程中的非线性效应

研究了上游传播的扰动谐波引起的非线性相互作用和能量损失。显示了谐波的非线性相互作用如何形成新的谐波。