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Numerical Assesment of a Small-Scale and Very Low Tip Speed Ratio Wind Turbine

Article dans une revue avec comité de lecture
Author
BOURHIS, Martin
DOBREV, Ivan
ccRAVELET, Florent
1003528 Laboratoire d'Ingénierie des Fluides et des Systèmes Énergétiques [LIFSE]
ccPEREIRA, Michaël

URI
http://hdl.handle.net/10985/21379
DOI
10.1051/e3sconf/202132101019
Date
2021
Journal
E3S Web of Conferences

Abstract

The aim of this paper is to study by CFD the performance and to characterize the velocity fields in the wake of an horizontal axis wind turbine. The design of this wind turbine is far from classical as it has been designed to work at very low angular velocity to promote torque. The 8 blades are not isolated but form a high solidity blade cascade. The numerical simulation compares well to experimental data regarding the power coefficients. The analysis of the wake does show that high tangential velocities, close to the order of magnitude that was used as a design requirement, are generated and form a stable rotating wake. This rotating kinetic energy in the wake may be used to rotate a second rotor in a counter-rotating arrangment.

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