Abstract

Oblique propagation with respect to the plane emitting high-intensity acoustic beams is considered. An approximation of the d’Alembert operator is proposed, which makes it possible to derive an evolutionary equation suitable for any beam propagation angles. A Khokhlov–Zabolotskaya-type equation for oblique beam propagation is formulated.

中文翻译：

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轴倾斜于发射表面的非线性光束的空间光谱的逼近

摘要

考虑相对于发射高强度声束的平面的倾斜传播。提出了d'Alembert算子的近似值，这使得导出适用于任何光束传播角度的演化方程成为可能。提出了斜束传播的Khokhlov–Zabolotskaya型方程。