BYU

Abstract by Caleb Goates

Personal Infomation


Presenter's Name

Caleb Goates

Degree Level

Masters

Co-Authors

Cameron Jones
Scott Sommerfeldt
Jonathan Blotter

Abstract Infomation


Department

Physics and Astronomy

Faculty Advisor

Scott Sommerfeldt

Title

Validating Green\'s functions for sound power calculations

Abstract

Sound power produced by a vibrating object may be found by integrating the normal acoustic intensity over the surface of the object. This normally would require knowledge of both the acoustic pressure and the surface velocity, but if appropriate Green's functions are known, the pressure may be calculated from surface velocity measurements.  This talk presents several Green's function formulations for the wave equation near a curved surface. These Green's functions are used to calculate sound power caused by a simulated vibrating curved plate, and the results are compared to boundary element analysis, which is taken as somewhat of a standard in the field.  Benefits of different Green's functions will be discussed.