Wind Speed Prediction in Complex Terrain Using a Commercial CFD Code | Zendy

Jae-Kyoon Woo | Zendy; Hyeon-Gi Kim | Zendy; Insu Paek | Zendy; Neungsoo Yoo | Zendy; Yoonsu Nam | Zendy

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Wind Speed Prediction in Complex Terrain Using a Commercial CFD Code

Author(s) -

Jae-Kyoon Woo,

Hyeon-Gi Kim,

Insu Paek,

Neungsoo Yoo,

Yoonsu Nam

Publication year - 2011

Publication title -

journal of the korean solar energy society

Language(s) - English

Resource type - Journals

eISSN - 2508-3562

pISSN - 1598-6411

DOI - 10.7836/kses.2011.31.6.008

Subject(s) - computational fluid dynamics , terrain , code (set theory) , meteorology , environmental science , marine engineering , wind speed , computer science , aerospace engineering , engineering , geography , cartography , set (abstract data type) , programming language

InvestigationsonmodelingmethodsofaCFDwindresourcepredictionprogram,WindSimforaccuratepredictions ofwindspeedswereperformedwiththefieldmeasurements.MeteorologicalMastshavingheightsof40mand50m wereinstalledattwodifferentsitesincomplexterrain.Thewindspeedsanddirectionweremonitoredfromsensors installedonthemastsandrecordedforoneyear.ModelingparametersofWindSim inputvariablesforaccurate predictionsofwindspeedswereinvestigatedbyperformingcrosspredictionsofwindspeedsatthemastsusingthe measureddata.FourparametersthatmostaffectthewindspeedpredictioninWindSimincludingthesizeofa topographicalmap,cellsizesinxandydirection,heightdistributionfactors,andtheroughnesslengthswerestudied tofindoutmoresuitableinputparametersforbetterwindspeedpredictions.Theparameterswerethenappliedto WindSimtopredictthewindspeedofanotherlocationincomplexterraininKoreaforvalidation.Thepredictedannual windspeedswerecomparedwiththeaveragedmeasureddataforoneyearfrommeteorologicalmastsinstalledforthis study,andtheerrorswerewithin6.9%.Theresultsoftheproposedpracticalstudyarebelievedtobeveryuseful togiveguidelinestowindengineersformoreaccuratepredictionresultsandtime-savinginpredictingwindspeedof complexterrainthatwillbeusedtopredictannualenergyproductionofavirtualwindfarmincomplexterrain.

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