A simulation study on nonlinear sound propagation by finite element approach
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概要
- 論文の詳細を見る
A finite element approach to the calculation of nonlinear sound propagation is proposed. The equation is discretized in space, and is then solved for time by using New-mark-β integration scheme. Some numerical demonstrations are made for the nonlinear sound propagation of a single-shot pulse in air. Under the assumption of a weak nonlinearity, a linearized one-dimensional equation is first considered for verifying the validity of the approach. It is shown that the nonlinear wave propagation including shock formation is stably and accurately simulated by the introduction of the artificial viscosity.
- 社団法人日本音響学会の論文
著者
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Tsuchiya Takao
Department Of Electronics Doshisha University
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Tsuchiya Takao
Japan Marine Science And Technology Center (jamstec)
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Tsuchiya Toshio
Yokohama Institute For Earth Sciences Japan Agency For Marine-earth Science And Technology
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Kagawa Yukio
Department of Electrical and Electronic Engineering,Faculty of Engineering,Okayama University
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Kagawa Y
Okayama Univ. Okayama-shi Jpn
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Tsuchiya Takao
Department Of Electronic Engineering Okayama Universiy
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