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dc.contributor.authorTabib, Mandar
dc.contributor.authorRasheed, Adil
dc.contributor.authorKvamsdal, Trond
dc.date.accessioned2018-01-23T07:25:05Z
dc.date.available2018-01-23T07:25:05Z
dc.date.created2015-06-18T14:19:59Z
dc.date.issued2015
dc.identifier.citationJournal of Physics, Conference Series. 2015, 625:012032 .nb_NO
dc.identifier.issn1742-6588
dc.identifier.urihttp://hdl.handle.net/11250/2478908
dc.description.abstractThis work compares the predictive performance of RANS and LES solver in capturing the effect of terrain and wakes on the performance of the Bessaker wind farm. This 25 turbine wind farm is located in a highly complex terrain and is exposed to predominantly high westerly and south easterly winds. A one-equation sub-grid scale LES turbulence model has been used to help capture the wake dynamics: particularly the effects of wake meandering and wake-turbine interactions. A comparison between RANS and LES models highlights the influence of turbulence model on wake decay and its subsequent effect on prediction of power production. The LES model predicts delayed decay of the wake and more pronounced wake interference leading to a lower power production in wind farm than the RANS case. The RANS model overpredicts turbulence, which cause faster turbulent momentum diffusivity and faster wake recovery. This study has given some insights regarding the power production at Bessaker wind farm for neutral conditions and westerly flow.
dc.language.isoengnb_NO
dc.relation.urihttp://iopscience.iop.org/article/10.1088/1742-6596/625/1/012032/pdf
dc.rightsNavngivelse 4.0 Internasjonal*
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/deed.no*
dc.subjectLagdeling
dc.subjectStratification
dc.subjectVindenergi, turbulens
dc.subjectWind energy, turbulence
dc.subjectCFD
dc.subjectVindkraft
dc.subjectWind power
dc.titleLES and RANS simulation of onshore Bessaker wind farm: analyzing terrain and wake effects on wind farm performancenb_NO
dc.typeJournal articlenb_NO
dc.typePeer reviewednb_NO
dc.description.versionpublishedVersion
dc.subject.nsiVDP::Matematikk og naturvitenskap: 400
dc.subject.nsiVDP::Mathematics and natural scienses: 400
dc.source.pagenumber10nb_NO
dc.source.volume625:012032nb_NO
dc.source.journalJournal of Physics, Conference Seriesnb_NO
dc.identifier.doi10.1088/1742-6596/625/1/012032
dc.identifier.cristin1249211
dc.relation.projectNorges forskningsråd: 216465nb_NO
cristin.unitcode7401,90,11,0
cristin.unitnameAnvendt matematikk
cristin.ispublishedtrue
cristin.fulltextoriginal
cristin.qualitycode1


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Navngivelse 4.0 Internasjonal
Except where otherwise noted, this item's license is described as Navngivelse 4.0 Internasjonal