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Energies 2017, 10(4), 478; doi:10.3390/en10040478

Numerical Simulations of a VAWT in the Wake of a Moving Car

School of Marine Science and Technology, Northwestern Polytechnical University, Xi’an, 710072, China
Key Laboratory for Unmanned Underwater Vehicle, Northwestern Polytechnical University, Xi’an, 710072, China
Author to whom correspondence should be addressed.
Received: 23 January 2017 / Revised: 7 March 2017 / Accepted: 28 March 2017 / Published: 3 April 2017
(This article belongs to the Section Energy Fundamentals and Conversion)
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Wind energy generated from the wake of moving cars has a large energy potential that has not yet been utilized. In this study, a vertical axis wind turbine (VAWT) was used to recover energy from the wakes of moving cars. The turbine was designed to be planted by the side of the car lane and driven by the wake produced by the car. Transient computational fluid dynamics (CFD) simulations were performed to evaluate the performance of the VAWT. The influence of two main factors on the performance of the VAWT, the velocity of the car and the gap between the car and the rotor, were studied. The simulations confirmed the feasibility of this plan, and in the tested cases, the VAWT was able to generate a maximum energy output of 100.49 J from the wake of a car. The results also showed that the performance of the VAWT decreased with the velocity of the car, and the increased gap between the car and the VAWT. View Full-Text
Keywords: wind energy; wind turbine; car; wake; highway; CFD; VAWT wind energy; wind turbine; car; wake; highway; CFD; VAWT

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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Tian, W.; Mao, Z.; Li, Y. Numerical Simulations of a VAWT in the Wake of a Moving Car. Energies 2017, 10, 478.

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