論文

査読有り
2016年

A basic investigation for prediction of outdoor sound propagation in large area using fast multipole boundary element method

Acoustical Science and Technology
  • Yosuke Yasuda
  • ,
  • Hidehisa Sekine
  • ,
  • Kazutaka Higuchi
  • ,
  • Takuya Oshima

37
2
開始ページ
87
終了ページ
90
記述言語
英語
掲載種別
研究論文(学術雑誌)
DOI
10.1250/ast.37.87
出版者・発行元
Acoustical Society of Japan

The applicability of the FMBEM to large outdoor problems was basically investigated. Conclusions are as follows. (i) The computational costs of the LF-FMBEM have no systematic relation with model size (root cell size) up to 1-km scale models. (ii) An increase in the root cell size directly increases the computational costs of the HF-FMBEM. (iii) It is much more inefficient in the HF-FMBEM to simply reduce the largest cell size used for computation with keeping high computational accuracy. (iv) An empirical formula proposed in Ref. [7] for the truncation number of infinite summation in the HF-FMBEM gives good values for high computational accuracy even in the range of kD ≤ 4
000, which corresponds to f ≤ 2
500 Hz with the root cell 200m on each side, if an appropriate value is chosen for its parameter.


リンク情報
DOI
https://doi.org/10.1250/ast.37.87
Web of Science
https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000422629900006&DestApp=WOS_CPL
ID情報
  • DOI : 10.1250/ast.37.87
  • ISSN : 1347-5177
  • ISSN : 1346-3969
  • SCOPUS ID : 84960903707
  • Web of Science ID : WOS:000422629900006

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