Abstract
The application of dimple like protrusions or depressions on wing planforms have been proven to be beneficial causing reduction in pressure drag and delaying boundary layer separation. The present work focuses on optimizing the placement of multiple dimples at the trailing edge of wings to keep boundary layer attached. Optimization in terms of size, shape and design of the dimples has been carried out to increase the efficiency of the wing. Pilot study tests for inward hemispherical, outward hemispherical and composite inward configurations have been done to determine the maximum achievable effectiveness in delaying of boundary layer separation at the trailing edge. The present work uses a Boeing 737 mid-wing airfoil section to optimize the design of dimples for practical use in commercial wing designs to achieve more aerodynamic efficiency and stall reduction.
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