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Benchmarking of a 3D non-linear lifting line method against 3D RANSE simulations

Abstract : As a part of the design and operation of kites as auxiliary propulsion of vessels, it is necessary to be able to quickly estimate the aerodynamic efforts along various trajectories. A 3D non-linear model based on the lifting line of Prandtl has been developed for this purpose. It allows these rapid calculations for wings with any laws for the dihedral angle, the twist, and the sweep angle, along the span, and for a general flight kinematic taking into account translation velocities and rotation rates. This model has been verified by comparison with 3D simulations performed with a Navier-Stokes solver. It gives satisfactory results in incidence and sideslip, with gaps of about 4% for forecasts lift. Special attention has been paid to the estimation of the accuracy of the provided numerical results.
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Submitted on : Friday, September 17, 2021 - 3:41:18 PM
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Chloé Duport, Jean-Baptiste Leroux, Kostia Roncin, Christian Jochum, Yves Parlier. Benchmarking of a 3D non-linear lifting line method against 3D RANSE simulations. La Houille Blanche - Revue internationale de l'eau, 2019, 2019 (5-6), pp.70-73. ⟨10.1051/lhb/2019029⟩. ⟨hal-02431025⟩



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