Abstract
The process of laminar separation is very sensitive to freestream turbulence. In the present work the influence of freestream turbulence with different length scales on the flow separation on a three-dimensional wing is investigated. In order to predict the separation it is necessary to resolve the turbulence. Since it appears not affordable to fully resolve the turbulence in this moderately complex three-dimensional configuration the hybrid model Delayed DES has been applied. The results show that smaller scales directly affect the flow separation by impinging the boundary layer while larger scales have an indirect impact when they change the local angle of attack.
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Tangermann, E., Klein, M. (2020). Simulation of a Three-Dimensional Wing with Laminar Separation in Large-Scale Freestream Turbulence. In: Hoarau, Y., Peng, SH., Schwamborn, D., Revell, A., Mockett, C. (eds) Progress in Hybrid RANS-LES Modelling . Notes on Numerical Fluid Mechanics and Multidisciplinary Design, vol 143. Springer, Cham. https://doi.org/10.1007/978-3-030-27607-2_17
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DOI: https://doi.org/10.1007/978-3-030-27607-2_17
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