A visco-thermal acoustic model and its equivalent properties for narrow slit by considering viscosity of air and thermal dissipation to surrounding structure

Acoustic damping in narrow slit becomes significant issues when the slit width is comparable to viscous and thermal skin depth. Acoustic transfer functions between two cavities connected through a narrow slit cannot be predicted precisely by the conventional Helmholtz equation. In this study, air is...

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Bibliographic Details
Main Authors: Takashi YAMAMOTO, Yoshio KUROSAWA
Format: Article
Language:Japanese
Published: The Japan Society of Mechanical Engineers 2015-09-01
Series:Nihon Kikai Gakkai ronbunshu
Subjects:
Online Access:https://www.jstage.jst.go.jp/article/transjsme/81/830/81_15-00231/_pdf/-char/en