Energy Flux Streamlines versus Acoustic Rays for Modeling Interaction with Rigid Boundaries: Near Field of Sound from a Circular Loudspeaker

Authors

Cleon Dean, Georgia Southern UniversityFollow
James P. Braselton, Georgia Southern UniversityFollow

Document Type

Contribution to Book

Publication Date

6-2-2013

Publication Title

Proceedings of Meetings on Acoustics

DOI

10.1121/1.4799251

Abstract

Sound emitted by a circular loudspeaker can be treated as equivalent to a plane wave diffracted by a circular aperture in a rigid, sound absorbing screen. Axial symmetry leads one to expect constructive interference along the symmetry axis in the near field (the Poisson-Arago spot). An energy flux streamline model was developed to help visualize this and other features of the nearsound field. The model is used to draw out similarities and differences between energy flux streamlines and acoustic rays, particularly in the transition to the far field. © 2013 Acoustical Society of America

Comments

The right, six or more months after publication by the ASA, to post copies of the article as published on the author(s) institutional internet web sites or on governmental web sites, to whatever extent is required by the author(s) institution or by whoever funded the research reported in the paper. Article obtained from the Proceedings of Meetings on Acoustic

Recommended Citation

Dean, Cleon, James P. Braselton. 2013. "Energy Flux Streamlines versus Acoustic Rays for Modeling Interaction with Rigid Boundaries: Near Field of Sound from a Circular Loudspeaker." Proceedings of Meetings on Acoustics, 19 (1): 1-5 Montreal, Canada: Acoustical Society of America. doi: 10.1121/1.4799251
https://digitalcommons.georgiasouthern.edu/physics-facpubs/160