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Numerical and Experimental Investigation of the Flow around a three-dimensional SD7003 Wing

Eike Tangermann
Institut für Mathematik und Rechneranwendung, Universitat der Bundeswehr Munchen Werner-Heisenberg-Weg 39, 85577 Neubiberg, Germany

Markus Klein
Institut fur Mathematik und Rechneranwendung Universität der Bundeswehr München W.-Heisenberg-Weg 39, Neubiberg, Germany

Sebastian L. Herbst
Institute of Fluid Mechanics and Aerodynamics Universitat der Bundeswehr Munchen 85577 Neubiberg, Germany

Rainer Hain
Institute for Fluid Mechanics and Aerodynamics Universitat der Bundeswehr Munchen (UniBw) Werner-Heisenberg-Weg 39, 85577 Neubiberg, Germany

Christian J. Kahler
Institute for Fluid Mechanics and Aerodynamics Universitat der Bundeswehr Munchen (UniBw) Werner-Heisenberg-Weg 39, 85577 Neubiberg, Germany

Abstract

The simulation of laminar separation is a challenge for turbulence models in computational fluid dynamics. Most previous investigations have focused on quasi two-dimensional configurations with airfoil sections. In the present investigation the geometry is extended to a fully three-dimensional wing introducing 3D effects like tip vortices to the separation and transition process. This setup has been investigated both by experiments and by computational simulation with the experimental view by PIV measurements in the central plane and CFD with turbulence-resolving hybrid methods. Despite the complexity of the case good agreement of experimental and numerical results can be achieved for some cases, while for one case the turbulence model is not capable of reproducing the separation process. Further it will be shown, that common simplifications of the geometry appear to have a significant influence on the flow reproduction in this setup.