SOUND GENERATION BY INTERACTION OF 2 INVISCID 2-DIMENSIONAL VORTICES

Authors
TANG SK KO NWM
Citation
Sk. Tang et Nwm. Ko, SOUND GENERATION BY INTERACTION OF 2 INVISCID 2-DIMENSIONAL VORTICES, The Journal of the Acoustical Society of America, 102(3), 1997, pp. 1463-1473
Citations number
21
Categorie Soggetti
Acoustics
Journal title
The Journal of the Acoustical Society of America → ACNP
ISSN journal
00014966
Volume
102
Issue
3
Year of publication
1997
Pages
1463 - 1473
Database
ISI
SICI code
0001-4966(1997)102:3<1463:SGBIO2>2.0.ZU;2-Y
Abstract
Sound generated by the pairing of two inviscid finite-core-size two-di mensional vortices is studied numerically using the contour dynamics m ethod and vortex sound theory. Results indicate that the resulting sou nd field is a lateral quadrupole type and its axis rotates with nonuni form speed about the origin of the source region. Results also show th at the accelerating and decelerating motions of the vortices are impor tant in the sound generation. (C) 1997 Acoustical Society of America.