numerical simulation of the unsteady flow and power of horizontal axis wind turbine using sliding mesh

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1、NumericalSimulationoftheUnsteadyFlowandPowerofHorizontalAxisWindTurbineusingSlidingMeshYangSunLiangZhangInstituteofOceanRenewableEnergySystemInstituteofOceanRenewableEnergySystemHarbinEngineeringUniversityHarbinEngineeringUniversityHarbin,ChinaHarbin,Chinasunyang@mail.comzha

2、ngliang@hrbeu.edu.comAbstract—Horizontalaxiswindturbine(hereafterHAWT)istheWiththedevelopmentofmoderncomputertechnologyandcommonequipmentinwindturbinegeneratorsystemsinrecentsimulationmethodofturbulence,numericalsimulationmethodyears.Thepaperrelatestothenumericalsimulationof

3、thehasthepotentialtoprovidephysicallysimulationofthewindunsteadyairflowaroundaHAWTofthetypePhaseVIwithturbineflowfield.Theliteraturereportsvariousmethodsonemphasisonthepoweroutput.Therotordiameteris10-mandrotorflowsusingfullN-Scodesforpreliminaryaerodynamictherotatingspeedis

4、72rpm.Thesimulationwasundertakenwithstudies[3–5].EffectsoftransitionandturbulencemodelsweretheComputationalFluidDynamics(CFD)softwareFLUENT6.2investigatednumericallyin[6–7].usingtheslidingmeshescontrolledbyuser-definedfunctions(UDF).Entiremeshnodenumberisabout1.8millionandit

5、isTheaimofthepresentworkistoobtainaerodynamicgeneratedbyGAMBIT2.2toachievebettermeshquality.ThepredictionsofHAWTwiththeaidofacommerciallyavailablenumericalresultswerecomparedwiththeexperimentaldataCFDcodeFLUENT6.2.TherepresentativehorizontalaxisfromNRELUAEwindtunneltest.Thec

6、omparisonsshowthatwindturbinePhaseVIrotorwasselectedastheresearchthenumericalsimulationusingslidingmeshescanaccuratelyobjectsinthepaperandtheunsteadyflowarounditwaspredicttheaerodynamicperformanceofthewindturbinerotor.simulatedbyusingslidingmesheswhichcontrolledbyUDF.Thecalc

7、ulationsarecomparedwithexperimentaldatafromKeywords-numericalsimulate;HAWT;poweroutput;slidingNRELUAEwindtunneltestattheNASAAmesResearchmesh;UDFCenterforvalidationpurposes.I.INTRODUCTIONII.TURBINEGEOMETRYAtpresent,therenewableenergybecomesattractiveagainForcomparingwindturbi

8、nemodelpredictionswithformanycountriesastheenvironmentisbecomingworseandmea