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Dighe, V.V. (author), Avallone, F. (author), Igra, Ozer (author), van Bussel, G.J.W. (author)Multi-element ducts are used to improve the aerodynamic performance of ducted wind turbines (DWTs). Steady-state, two-dimensional computational fluid dynamics (CFD) simulations are performed for a multi-element duct geometry consisting of a duct and a flap; the goal is to evaluate the effects on the aerodynamic performance of the radial gap...journal article 2019