An Investigation of the Separate Flow and Stall-delay for Horizontal-Axis Wind Turbine |
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| Authors: | Florin Frunzulica Razvan Mahu Horia Dumitrescu |
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| Affiliation: | 1. POLITEHNICA University of Bucharest, Faculty of Aerospace Engineering, Polizu 1-6, 011061, Bucharest, Romania;2. TENSOR SRL, Bucharest, Romania;3. Institute of Statistics and Applied Mathematics, 13 Septembrie 13, sect.5, 050711 Bucharest, Romania |
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| Abstract: | The flow characteristics and stall delay phenomenon of a stall regulated wind turbine rotor due to blade rotation in steady state non-yawed conditions are investigated. An incompressible Reynolds-averaged Navier-Stokes solver is applied to carry out the separate flow cases at high wind speeds from 11 m/s to 25 m/s with an interval of 2 m/s. The objective of the present research effort is to validate a first-principles based approach for modeling horizontal axis wind turbines (HAWT) under stalled flow conditions using NREL/Phase VI rotor data. The computational results are compared with the predicted values derived by a new stall-delay model and blade element momentum (BEM) method. (© 2012 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim) |
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