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Title: Computational Aerodynamic Analysis of Offshore Upwind and Downwind Turbines

Aerodynamic interactions of the model NREL 5 MW offshore horizontal axis wind turbines (HAWT) are investigated using a high-fidelity computational fluid dynamics (CFD) analysis. Four wind turbine configurations are considered; three-bladed upwind and downwind and two-bladed upwind and downwind configurations, which operate at two different rotor speeds of 12.1 and 16 RPM. In the present study, both steady and unsteady aerodynamic loads, such as the rotor torque, blade hub bending moment, and base the tower bending moment of the tower, are evaluated in detail to provide overall assessment of different wind turbine configurations. Aerodynamic interactions between the rotor and tower are analyzed, including the rotor wake development downstream. The computational analysis provides insight into aerodynamic performance of the upwind and downwind, two- and three-bladed horizontal axis wind turbines.
 [1] ;  [1] ;  [1]
  1. The University of Toledo, Toledo, OH 43606, USA
Publication Date:
OSTI Identifier:
Grant/Contract Number:
FG36-06GO86096; EE0003540
Published Article
Journal Name:
Journal of Aerodynamics
Additional Journal Information:
Journal Volume: 2014; Related Information: CHORUS Timestamp: 2016-08-10 07:02:30; Journal ID: ISSN 2356-7139
Hindawi Publishing Corporation
Sponsoring Org:
Country of Publication:
Country unknown/Code not available