Nonlinear Distortion and Attenuation of Intense Acoustic Waves in Lossy Media Obeying a Frequency Power Law

2000 ◽  
Vol 46 (2) ◽  
pp. 170 ◽  
Author(s):  
S. S. Kashcheeva
Keyword(s):  
Power Law ◽  
Acoustic Waves ◽  
Nonlinear Distortion ◽  
Lossy Media ◽  
Frequency Power

Improved description of shock wave evolution in media with frequency power law dependent attenuation

2001 ◽  
Vol 109 (5) ◽  
pp. 2263-2265 ◽  
Author(s):  
Kirk D. Wallace ◽  
Mark R. Holland ◽  
James G. Miller
Keyword(s):  
Shock Wave ◽  
Power Law ◽  
Wave Evolution ◽  
Frequency Power

scholarly journals Geometric-acoustics analysis of singly scattered, nonlinearly evolving waves by circular cylinders

2020 ◽  
Author(s):  
Michael Muhlestein ◽  
Carl Hart
Keyword(s):  
Acoustic Waves ◽  
Nonlinear Distortion ◽  
Nonlinear Evolution ◽  
Scattered Wave ◽  
High Amplitude ◽  
Circular Cylinders ◽  
Ray Theory ◽  
Theoretical Predictions ◽  
Geometric Acoustics ◽  
The Individual

Geometric acoustics, or acoustic ray theory, is used to analyze the scattering of high-amplitude acoustic waves incident upon rigid circular cylinders. Theoretical predictions of the nonlinear evolution of the scattered wave field are provided, as well as measures of the importance of accounting for nonlinearity. An analysis of scattering by many cylinders is also provided, though the effects of multiple scattering are not considered. Provided the characteristic nonlinear distortion length is much larger than a cylinder radius, the nonlinear evolution of the incident wave is shown to be of much greater importance to the overall evolution than the nonlinear evolution of the individual scattered waves.

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