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dc.contributor.authorAhmadi, Mohammad H.B.
dc.contributor.authorYang, Zhiyin
dc.date.accessioned2020-07-09T15:06:19Z
dc.date.available2020-07-09T15:06:19Z
dc.date.issued2020-07-06
dc.identifier.citationAhmadi, M., and Yang, Z. (2020). 'Numerical study of the coupling between the instantaneous blade loading/power of an axial wind turbine and upstream turbulence at high Reynolds numbers'. Energy, 118167, pp. 1-16.en_US
dc.identifier.issn0360-5442
dc.identifier.doi10.1016/j.energy.2020.118167
dc.identifier.urihttp://hdl.handle.net/10545/624967
dc.description.abstractLittle is known about how the range of scales in the approaching turbulent flow can interact dynamically with wind turbines and influence its ability to produce power. Here, a numerical study of a horizontal-axis wind turbine at different Reynolds numbers (corresponding to different tip speed ratios) has been conducted to investigate the instantaneous turbine response to upstream turbulence. A computational approach, combining large eddy simulation with actuator line modelling, is adopted. Comparison between Power Spectral Density (PSD) of the turbine thrust/power and PSD of the velocity at the rotor plane and one rotor diameter upstream of it confirms that there is a coupling between the instantaneous turbine thrust/power and the upstream turbulence (one diameter upstream of the turbine) for frequencies below a critical frequency. Furthermore, it has been shown for the first time, that PSD of the turbine thrust/power and the velocity PSD at the rotor plane are very similar, indicating that the instantaneous turbine thrust/power and the velocity at the rotor plane are coupled for all frequencies. This means that the PSD of velocity at the rotor plane or shortly behind it can provide interesting information for the instantaneous turbine loads that are very important for the turbine operational life.en_US
dc.description.sponsorshipN/Aen_US
dc.language.isoenen_US
dc.publisherElsevier BVen_US
dc.relation.urlhttps://www.sciencedirect.com/science/article/pii/S0360544220312743?via%3Dihub#!en_US
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 International*
dc.rights.urihttps://www.elsevier.com/tdm/userlicense/1.0/
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/*
dc.subjectWind turbineen_US
dc.subjectturbine poweren_US
dc.subjectLESen_US
dc.titleNumerical study of the coupling between the instantaneous blade loading/power of an axial wind turbine and upstream turbulence at high Reynolds numbersen_US
dc.typeArticleen_US
dc.contributor.departmentUniversity of Derbyen_US
dc.identifier.journalEnergyen_US
dc.identifier.piiS0360544220312743
dc.source.journaltitleEnergy
dc.source.beginpage118167
dcterms.dateAccepted2020-06-16
dc.author.detail784574en_US


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