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- Title
Investigation of non-linear acoustic losses at the open end of a tube.
- Authors
Buick, James M; Atig, M; Skulina, D J; Campbell, D M; Dalmont, J P; Gilbert, J
- Abstract
At high acoustic level, non-linear losses at the end of a tube are usually interpreted as the consequence of a jet formation at the tube end resulting in annular vortices dissipating part of the acoustic energy. Previous work has shown that two different regimes may occur. The present work, using particle image velocimetry visualization, lattice Boltzmann method simulation in 2D, and an analytical model, shows that the two different regimes correspond to situations for which the annular vortices remain attached to the tube (low acoustic particle velocity) or detached (high acoustic particle velocity).
- Publication
The Journal of the Acoustical Society of America, 2011, Vol 129, Issue 3, p1261
- ISSN
1520-8524
- Publication type
Journal Article
- DOI
10.1121/1.3543987