Detached Eddy Simulation Model for the DU-91-W2-250 Airfoil

K. Rogowski*, Martin Otto Laver Hansen, R. Hansen, J. Piechna, P. Lichota

*Corresponding author for this work

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Abstract

This paper presents aerodynamic investigations of the DU-91-W2-250 airfoil at Reynolds number of 3 · 106 employing 2D Reynolds-averaged Navier–Stokes (RANS) solver and 3D detached eddy simulation (DES) technique. RANS simulations are performed in the angle of attack range between -20° and +20° whereas DES results are given only for the angle of attack of 7.08°. Measurements have been done at the LM Wind Power Low Speed Wind Tunnel. The lift and drag are obtained from airfoil pressure and wake rake respectively. The obtained numerical results, lift and drag coefficients as well as static pressure distributions are in a good agreement with the experimental results in the linear part of the lift coefficient curve. The Transition SST turbulence model gives much more appropriate results in comparison with the k-ω SST model, especially for the drag at low angles of attack. The DES approach allows to obtain 3D flow characteristics near the S-shaped airfoil tall.
Original languageEnglish
Article number022019
Book seriesJournal of Physics: Conference Series
Volume1037
Issue number2
Number of pages9
ISSN1742-6596
DOIs
Publication statusPublished - 2018
EventThe Science of Making Torque from Wind 2018 - Politecnico di Milano (POLIMI), Milan, Italy
Duration: 20 Jun 201822 Jun 2018
Conference number: 7
http://www.torque2018.org/

Conference

ConferenceThe Science of Making Torque from Wind 2018
Number7
LocationPolitecnico di Milano (POLIMI)
CountryItaly
CityMilan
Period20/06/201822/06/2018
Internet address

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