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SUMMARY:When fluid dynamics meets acoustics:  the scattering of vorticity 
 into sound\, and its canonical problems - John Chapman (Keele University)
DTSTART:20230209T094500Z
DTEND:20230209T103000Z
UID:TALK194797@talks.cam.ac.uk
DESCRIPTION:One of the most fundamental results in the theory of fluid dyn
 amics is that `vorticity moves with the fluid'.&nbsp\; At low Mach number\
 , this leads to very little sound production from the fluid itself.&nbsp\;
  However\, when vorticity strikes an edge of a solid body\, such as the le
 ading or trailing edge of any type of blade (e.g. in a fan or aircraft eng
 ine)\, intense conversion of vortical energy into sound energy occurs.&nbs
 p\; This is a matter of great importance for the public acceptance of adva
 nced technology.&nbsp\;\nThe presentation reviews the main canonical probl
 ems which have emerged over many of years of analysis of such sound produc
 tion\, including several solved by the presenter in which complete analyti
 cal and geometrical details were obtained by careful mathematical analysis
 .
LOCATION:Seminar Room 1\, Newton Institute
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