Interaction of a Row of Helmholtz Resonators with Turbulent Boundary Layer

date September 26, 1985
comments no comments.

Thursday, September 26, 1985 3:30 p.m.

Ronald L. Panton
Department of Mechanical Engineering
The University of Texas at Austin

The turbulent flow in a boundary layer can excite acoustic oscillations in a Helmholtz resonator imbedded in the wall. Under certain conditions of timing between the flow and the resonator an extra strong excitation occurs. This seminar will review what is known about this situation and speculate on the back interaction of the acoustic motion upon the turbulent fluid motions. It may be possible to use this mechanism to control the boundary layer in a beneficial way.