Numerical Simulations of Artificial Disturbance Influence on a High Lift Airfoil

Katharina Wawrzinek (), Thorsten Lutz () and Ewald Krämer ()
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Katharina Wawrzinek: University of Stuttgart, Institute of Aerodynamics and Gas Dynamics (IAG)
Thorsten Lutz: University of Stuttgart, Institute of Aerodynamics and Gas Dynamics (IAG)
Ewald Krämer: University of Stuttgart, Institute of Aerodynamics and Gas Dynamics (IAG)

A chapter in High Performance Computing in Science and Engineering ' 17, 2018, pp 323-337 from Springer

Abstract: Abstract Numerical simulation results of the DLR-F15 high lift airfoil with statically and dynamically disturbed inflow conditions are presented and analysed. The two-dimensionally extruded high-lift airfoil, consisting of main element and flap, is exposed to the influence of a static tip vortex in order to generate a three-dimensional inflow condition. In a second step the static distortion is superimposed by an additional, artificial and dynamic gust. The set-up is a wind tunnel test section, where a pitching airfoil, which serves as a gust generator, and a finite wing, which serves as a vortex generator, are located upstream of the high lift airfoil. Unsteady RANS simulations with the inflow Mach number M ∞ = 0.15 and Reynolds number Re = 2.0 million were performed. The high lift airfoil angle of attack is α = 0∘. The results give an insight into the different emerging effects and the reaction of the high lift airfoil.

Keywords: High-lift Airfoil; Gust Generator; Vortex Generation; Finite Wing; Unsteady RANS Simulations (search for similar items in EconPapers)
Date: 2018
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Persistent link: https://EconPapers.repec.org/RePEc:spr:sprchp:978-3-319-68394-2_19

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DOI: 10.1007/978-3-319-68394-2_19

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