dc.contributor.advisor |
Cater, J |
en |
dc.contributor.advisor |
Norris, S |
en |
dc.contributor.author |
Storey, Rupert |
en |
dc.date.accessioned |
2015-02-10T22:37:30Z |
en |
dc.date.issued |
2014 |
en |
dc.identifier.citation |
2014 |
en |
dc.identifier.uri |
http://hdl.handle.net/2292/24455 |
en |
dc.description.abstract |
Accurate prediction of transient wind turbine wakes is important for the siting of turbines within wind farms due to wake structures that can aff ect downwind turbine performance and loading. A technique is described for coupling large eddy simulation of the wind with an aero-elastic turbine simulation to dynamically model both turbine operation and the genesis of wake structures. The important feature of this approach is a turbine model which actively responds to transient wind conditions in a ow simulation through the inclusion of the dynamic turbine state and controller actions. The codes are coupled through a newly developed actuator model and a software framework to transfer data between simulations. The resulting system is computationally e fficient, with the ability to model multiple turbines exhibiting standard baseline control, operating in an atmospheric boundary layer flow. Simulations demonstrate the successful implementation of the coupled methodology with results showing good agreement with measured data and benchmark load distributions. The ow within a four turbine farm has been analysed at several wind speeds, quantifying power losses and increased load fluctuations on downwind turbines. Increased control utilisation is also observed in wake-aff ected rows, along with wake meandering phenomena. The implementation of transient boundary conditions has demonstrated the ability to model extreme transient wind conditions in a turbine array simulation. Results illustrate the propagation of wind event fronts, and quantify the response of the turbines with signi ficant pitch and yaw actuation observed. |
en |
dc.publisher |
ResearchSpace@Auckland |
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dc.relation.ispartof |
PhD Thesis - University of Auckland |
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dc.rights |
Items in ResearchSpace are protected by copyright, with all rights reserved, unless otherwise indicated. Previously published items are made available in accordance with the copyright policy of the publisher. |
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dc.rights.uri |
https://researchspace.auckland.ac.nz/docs/uoa-docs/rights.htm |
en |
dc.rights.uri |
http://creativecommons.org/licenses/by-nc-sa/3.0/nz/ |
en |
dc.title |
Large Eddy Simulation of Dynamically Controlled Wind Turbine Arrays |
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dc.type |
Thesis |
en |
thesis.degree.grantor |
The University of Auckland |
en |
thesis.degree.level |
Doctoral |
en |
thesis.degree.name |
PhD |
en |
dc.rights.holder |
Copyright: The Author |
en |
dc.rights.accessrights |
http://purl.org/eprint/accessRights/OpenAccess |
en |
pubs.elements-id |
475611 |
en |
pubs.org-id |
Engineering |
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pubs.org-id |
Engineering Science |
en |
pubs.record-created-at-source-date |
2015-02-11 |
en |
dc.identifier.wikidata |
Q112907202 |
|