Print Email Facebook Twitter Experimental and numerical study of radial flow and its contribution to wake development of a HAWT Title Experimental and numerical study of radial flow and its contribution to wake development of a HAWT Author Micallef, D. Akay, B. Sant, T. Simao Ferreira, C.J. Van Bussel, G.J.W. Faculty Aerospace Engineering Department Aerodynamics, Wind Energy & Propulsion Date 2011-03-14 Abstract The scope of this work was to investigate radial flow component for a Horizontal Axis Wind Turbine in axial flow conditions and to assess its impact on the turbine operation. This was done by means of Particle Image Velocimetry and numerical simulation with a 3D unsteady potential-flow panel model. A direct comparison between the numerical and experimental radial velocity results show differences in the tip and root regions. These differences have important implications on the wake development just at the moment of release of the tip vortex. Moreover, the impact of the radial velocities on the blade loading has been studied using the numerical results. The contribution of the radial velocity to the normal load on the blade is only slightly appreciable in the tip and root regions of the blade. However, as the numerical model does not account for viscous effects, further analysis of impact on boundary layer development is necessary. Subject horizontal axis wind-turbineradial flowwake expansion To reference this document use: http://resolver.tudelft.nl/uuid:70195ec0-ef1f-4225-8f0d-bf0c56b58458 Source EWEA 2011: Europe's Premier Wind Energy Event, Brussels, Belgium, 14-17 March 2011 Part of collection Institutional Repository Document type conference paper Rights (c) 2011 The Author(s) Files PDF Micallef_2011.pdf 5.71 MB Close viewer /islandora/object/uuid:70195ec0-ef1f-4225-8f0d-bf0c56b58458/datastream/OBJ/view