A stable time domain BEM for diffuser scattering

Hargreaves, JA; Cox, TJ

Abstract

Boundary Element Methods (BEMs) may be used to model scattering of sound by surfaces such as diffusers, accelerating prototyping of new Room Acoustics treatments. Unlike the more widely used frequency domain method, the time domain BEM is usually solved in an iterative manner so can exhibit instability, a crucial impediment to its widespread use. These instabilities are primarily associated with resonance of the cavities formed by closed surface sections, but may also be caused by discretisation or integration error corrupting physically relevant damped resonances.

Citation

Hargreaves, J., & Cox, T. (2007, September). A stable time domain BEM for diffuser scattering. Presented at 19th International Congress on Acoustics, Madrid

• Presentation Conference Type: Lecture
• Conference Name: 19th International Congress on Acoustics
• Conference Location: Madrid
• Start Date: Sep 2, 2007
• End Date: Sep 7, 2007
• Publication Date: Jan 1, 2007
• Deposit Date: Jan 16, 2012
• Publicly Available Date: Apr 5, 2016
• Additional Information: Event Type : Conference