Speaker
Nicholas Giordano
(Auburn University)
Description
A direct numerical solution of the Navier-Stokes equations was used to obtain the time dependence of the pressure and air velocity in and around a recorder as it produced a musical tone. A Helmholtz decomposition was then applied to extract the irrotational and solenoidal components of the velocity. The simulations also yielded the Lamb vector, allowing a comparison with predictions for the generation of acoustic energy based on Howe's energy corollary.
Author
Nicholas Giordano
(Auburn University)