Modeling of sound absorption by porous materials using cellular automata

フォーマット:

論文

責任表示:

Komatsuzaki, Toshihiko ; Iwata, Yoshio

言語:

英語

出版情報:

Springer Verlag, 2006-01-01

著者名:

• Komatsuzaki, Toshihiko
• Iwata, Yoshio

掲載情報:

Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)

ISSN:

0302-9743      

巻:

4173

開始ページ:

357

終了ページ:

366

バージョン:

author

概要:

金沢大学大学院自然科学研究科知的システム創成<br />金沢大学工学部<br />In the present study, acoustic wave propagation in acoustic tube in-corporating sound absorbing material is simulated using Cellular Automata (CA). CA is a discrete system which consists … of finite state variables, arranged on a uniform grid (cell). CA dynamics is described by a local interaction rule, which is used for computation of new state of each cell from the present state at every time step. In this study an acoustic tube model is introduced in which ab-sorbing material is characterized by direct modeling of porosity and flow resis-tance. Direct numerical simulation CA model is performed and evaluated by absorption coefficient using standing wave ratio measure. The results showed good correspondence with analytical solutions. © Springer-Verlag Berlin Heidelberg 2006. 続きを見る

URL:

http://hdl.handle.net/2297/3039