University of Waterloo Fluid Mechanics Research Laboratory
University of Waterloo
200 University Avenue West
Waterloo, On, Canada, N2L 3G1
Contact Serhiy Yarusevych, principal investigator, UWaterloo Fluid Mechanics Research Laboratory
Noise is generated by many engineering systems and is now recognized as a form of environmental pollution. In our laboratory, we are interested in aeroacoustics, where noise is generated by the fluid flow. For example, periodic shedding of vortices, such as those seen in Video 2a, over a trailing edge of an airfoil can produce strong tonal noise emissions.
Figure 3 illustrates different flow regimes where tonal noise emissions can generate and can also affect flow development over the airfoil itself. Specifically, tonal emissions can be generated by the flow events originating either from the suction or pressure side of an airfoil (or both). Moreover, the resulting acoustic perturbations can influence flow development, establishing a strong feedback loop with separation bubble.