FLUCTUATIONS OF VORTICITY AND ENTROPY AS SOURCES OF ACOUSTICAL EXERGY

✍ Scribed by R. Starobinski; Y. Aurégan

• Book ID: 102611519
• Publisher: Elsevier Science
• Year: 1998
• Tongue: English
• Weight: 171 KB
• Volume: 216
• Category: Article
• ISSN: 0022-460X
• DOI: 10.1006/jsvi.1998.1723

✦ Synopsis

In the case of a perfect fluid in an adiabatic process with irrotational 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 equations for these fluctuations are given and solved in natural co-ordinates associated with the mean flow.