Two Model Equations for Describing Nonlinear Sound Beams

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概要

• 論文の詳細を見る

• This short article is an introductory review and guidance on nonlinear acoustics, the study of which dates back to the 18th century. First, interpretation is made for the meaning and research field of nonlinear acoustics. Second, two typical model equations are presented describing finite-amplitude sound beams radiated in a viscous fluid from unfocused and focused powerful sources with finite apertures. The three basic characteristics of a wave, diffraction, dissipation, and nonlinearity are combined successfully in the model equations. Third, an innovative application referred to as a parametric acoustic array is shortly reviewed. Numerical demonstration shows specifically the sharp directivity of the parametric array.

• Published by the Japan Society of Applied Physics through the Institute of Pure and Applied Physicsの論文
• 2004-05-15

著者

• KAMAKURA Tomoo

  University of Electro-Communications

• Kamakura Tomoo

  University of Electro-Communications, 1-5-1 Chofugaoka, Chofu 182-8585, Japan

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• Two Model Equations for Describing Nonlinear Sound Beams

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