On the aerodynamics of variable-geometry oval-trajectory Darrieus wind turbines

F.L. Ponta, J.J. Seminara and A.D. Otero

Renewable Energy, 2007, vol. 32, issue 1, 35-56

Abstract: A new computational model for the aerodynamics of vertical-axis wind turbines is introduced. It is based on the double-multiple streamtube concept and it incorporates the capacity of dealing with rotors whose blades follow oval-trajectories at variable setting-angles. We applied this model to the study of the aerodynamics of an innovative concept in extra-large wind-power plants: the VGOT (variable-geometry oval-trajectory) Darrieus wind turbine. Due to the especial geometric characteristics of the VGOT Darrieus, it was necessary to propose three new non-dimensional parameters to quantify its performance under different wind-conditions: the equivalent power coefficient, the equivalent solidity coefficient and the trajectory efficiency. We show some numerical results testing several rotor configurations working under different wind scenarios.

Keywords: Innovative concepts; Vertical-axis wind turbine (VAWT); VAWT aerodynamics; Darrieus rotors; Double-multiple streamtube model (search for similar items in EconPapers)
Date: 2007
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (6)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:renene:v:32:y:2007:i:1:p:35-56

DOI: 10.1016/j.renene.2005.12.007

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