A numerical study of a method for measuring the effective in situ sound absorption coefficient | Zendy

E.R. Kuipers | Zendy; Ysbrand H. Wijnant | Zendy; A. de Boer | Zendy

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A numerical study of a method for measuring the effective in situ sound absorption coefficient

Author(s) -

E.R. Kuipers,

Ysbrand H. Wijnant,

A. de Boer

Publication year - 2012

Publication title -

the journal of the acoustical society of america

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.619

H-Index - 187

eISSN - 1520-8524

pISSN - 0001-4966

DOI - 10.1121/1.4745839

Subject(s) - noise reduction coefficient , attenuation coefficient , absorption (acoustics) , acoustics , sound (geography) , plane wave , plane (geometry) , in situ , materials science , physics , computational physics , optics , mathematics , geometry , meteorology , porosity , composite material

The accuracy of a method [Wijnant et al., Proc. of ISMA 31, Leuven, Belgium (2010), Vol. 31] for measurement of the effective area-averaged in situ sound absorption coefficient is investigated. Based on a local plane wave assumption, this method can be applied to sound fields for which a model is not available. Investigations were carried out by means of finite element simulations for a typical case. The results show that the method is a promising method for determining the effective area-averaged in situ sound absorption coefficient in complex sound fields.

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