Abstract

Soniс boom propagation in the atmospheric turbulent layer, represented by a model of homogeneous isotropic turbulence, is investigated numerically in two-dimensional geometry using a KZK-type nonlinear parabolic equation for an inhomogeneous moving medium with relaxation. The mean value, standard deviation, and cumulative probabilities of the sonic boom amplitude, shock front steepness, and the Perceived Loudness Mark VII metric of subjective loudness of an impulse noise are analyzed at different propagation distances traveled by the sonic boom wave in the turbulent layer and for different initial amplitudes of the wave.

中文翻译：

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解析空气声波传播后声波动荡波感知响度统计的非线性抛物方程的数值模拟

摘要

对于具有松弛的非均匀运动介质，使用KZK型非线性抛物方程，在二维几何结构中以二维几何学形式对以均匀各向同性湍流模型表示的大气湍流层中的悬臂梁传播进行了数值研究。分析了动臂波在湍流层中传播的不同传播距离下，动臂振幅，激波前陡度和脉冲噪声的主观响度的感知响度标记VII度量的平均值，标准偏差和累积概率并针对不同的初始波幅。