Abstract
This paper reports on a wind tunnel experiment on a wind turbine aerofoil under turbulent inlet. Urban Wind Energy is considered as a promising way of harvesting wind energy in built areas, hence slashing infrastructural wind energy costs. Effective positioning strategies are needed to maximise the performance; however, the role of turbulent inflows is not clear. In particular, the role of turbulent length scales is difficult to assess. In this work, the DU96w180 wind turbine aerofoil is investigated regarding its aerodynamic performance under varying inflow turbulence structures. Particular attention is given to the stall mechanism, hence the angle of attack of the blade is varied accordingly "0<α<45deg" . Inlet turbulence is created by means of passive grids, with various geometrical setup, in order to obtain a wide range of turbulent structures. In order to test the effect of large scales, two chord length for the model are chosen "c=0.125÷0.025m" in order to maximise the length-to-chord ratio L/c.
Original language | English |
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Title of host publication | Proceedings of WINERCOST'17 - The International Conference on Wind Energy Harvesting 2017 |
Editors | C. Baniotopoulos , C. Rebelo, L. Simões da Silva, C. Borri , B. Blocken , H. Hemida , M. Veljkovic , T. Morbiato , R. P. Borg , S. Huber , E. Efthymiou |
Place of Publication | Coimbra, PT |
Publisher | WINERCOST |
Pages | 348-352 |
Number of pages | 5 |
ISBN (Electronic) | 978‐989‐99226‐5‐5 |
ISBN (Print) | 978‐989‐99226‐4‐8 |
Publication status | Published - 20 Apr 2017 |
Event | WINERCOST’17 International Conference on Wind Energy Harvesting - University of Coimbra, Coimbra, Portugal Duration: 20 Apr 2017 → 21 Apr 2017 |
Conference
Conference | WINERCOST’17 International Conference on Wind Energy Harvesting |
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Abbreviated title | WINERCOST’17 |
Country/Territory | Portugal |
City | Coimbra |
Period | 20/04/17 → 21/04/17 |
ASJC Scopus subject areas
- Renewable Energy, Sustainability and the Environment
- Civil and Structural Engineering