Applicability of Thompson boundary conditions to obliquely incident acoustic waves

Authors
O'Sullivan, PL Reichert, RS Biringen, S Howard, JE Watson, W
Citation
Pl. O'Sullivan et al., Applicability of Thompson boundary conditions to obliquely incident acoustic waves, APPL ACOUST, 62(8), 2001, pp. 1013-1018
Citations number
7
Categorie Soggetti
Optics & Acoustics
Journal title
APPLIED ACOUSTICS
ISSN journal
0003682X → ACNP
Volume
62
Issue
8
Year of publication
2001
Pages
1013 - 1018
Database
ISI
SICI code
0003-682X(200108)62:8<1013:AOTBCT>2.0.ZU;2-X
Abstract
A numerical study employing the Euler equations in a two-dimensional duct f lows is presented. Thompson boundary conditions imposed at the inflow/outfl ow boundaries indicated bounded growth of absolute error with increasing an gle of incidence of oblique acoustic disturbances, supporting the suitabili ty of these boundary conditions for acoustic propagation and noise control problems. (C) 2001 Elsevier Science Ltd. All rights reserved.