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A Study of the Normal Turbulence Model in IEC 61400-1
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2012
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AeroacousticsEngineeringTurbulenceNormal Turbulence ModelWind EngineeringSystems EngineeringElectric Power TransmissionWind Power GenerationOffshore SystemsStandard DeviationWind Turbine ModelingOcean EngineeringAerospace EngineeringWind Turbine BladesSubgrid ModelsTurbulence ModelingCivil EngineeringAerodynamicsWind Energy TechnologyWind Records
This study examines applicability of Normal Turbulence Model (NTM) in IEC 61400-1 for offshore conditions using wind records obtained at an offshore site. The model parameters for estimation of the standard deviation of longitudinal fluctuating velocity, σ 1 , in NTM are presented. The identified model parameters for the mean value of σ 1 agree well with those of IEC Normal Turbulence Model, but parameters for the standard deviation of σ 1 are found to be larger than those used in IEC. As a result, the standard deviation of σ 1 obtained by IEC Normal Turbulence Model parameters is underestimated and predicted that by the proposed model parameters shows a good agreement with the observation.