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Active separation control on a very thick wind turbine airfoil - A URANS and DDES perspective
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Journal Article
Active separation control on a very thick wind turbine airfoil - A URANS and DDES perspective
2018
Overview
The present works aim to investigate the effectiveness of active separation control by means of combined suction and vortex generator jets on the suction side of a very thick airfoil (40%) under tripped conditions. Fully resolved two-dimensional URANS and three-dimensional DDES simulations were carried out to assess the consistency of the results. It is observed for the baseline case that 2D URANS simulations are too optimistic while 3D DDES delivers an excellent agreement with the available experiment in the post stall region at α = 20°. The studies reveal that the proposed system is able to delay separation significantly, increasing the overall aerodynamic performance of the airfoil.
Publisher
IOP Publishing
Subject
