This paper presents and interprets a series of extensive studies of the application of leading-edge serrations as a device for reducing the vortex noise radiated from stationary and rotating airfoils in low Reynolds number flow. In these studies, a variety of serrations were attached at selected locations near the leading edge of stationary and rotating airfoils. The noise levels of the airfoils were reduced considerably with the serrations attached. An explanation of the aeroacoustic flow mechanisms involved is given.
Investigation of acoustic effects of leading-edge serrations on airfoils
Journal of Aircraft ; 11
1974-04-01
Miscellaneous
No indication
English
Reduction of Wind Turbine Noise Using Optimized Airfoils and Trailing-Edge Serrations
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