FLUCTUATIONS OF VORTICITY AND ENTROPY AS SOURCES OF ACOUSTICAL EXERGY

Authors
STAROBINSKI R AUREGAN Y
Citation
R. Starobinski et Y. Auregan, FLUCTUATIONS OF VORTICITY AND ENTROPY AS SOURCES OF ACOUSTICAL EXERGY, Journal of sound and vibration, 216(3), 1998, pp. 521-527
Citations number
6
Categorie Soggetti
Acoustics
Journal title
Journal of sound and vibration → ACNP
ISSN journal
0022460X
Volume
216
Issue
3
Year of publication
1998
Pages
521 - 527
Database
ISI
SICI code
0022-460X(1998)216:3<521:FOVAEA>2.0.ZU;2-6
Abstract
In the case of a perfect fluid in an adiabatic process with irrotation al mean flow, a second order wave equation of convected type is given for the acoustical exergy. The source terms are linked to fluctuating entropy and to fluctuating Coriolis acceleration. Propagation equation s for these fluctuations are given and solved in natural co-ordinates associated with the mean flow. (C) 1998 Academic Press.