Abstract
A realistic transonic airfoil at landing speed is optimized for lift achieving a lift increase of 10.4% with minimal changes to the shape. This is realized by a Gurney type flap deformation of the trailing edge. For an efficient process, the optimization uses sensitivity maps generated by an adjoint unsteady RANS flow solver. Using scale-resolving DDES simulations, the lift-only optimized airfoil shape produces around 4 dB more noise than the base shape. The noise is evaluated using a simplification of Curle’s equation.
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Acknowledgements
This project has received funding from the European Union’s Horizon 2020 research and innovation programme under grant agreement No 723402 “Smart Morphing and Sensing”.
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Kramer, F. et al. (2021). Impact of Optimized Trailing Edge Shapes on Noise Generation. In: Braza, M., Hoarau, Y., Zhou, Y., Lucey, A.D., Huang, L., Stavroulakis, G.E. (eds) Fluid-Structure-Sound Interactions and Control. FSSIC 2019. Lecture Notes in Mechanical Engineering. Springer, Singapore. https://doi.org/10.1007/978-981-33-4960-5_35
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DOI: https://doi.org/10.1007/978-981-33-4960-5_35
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