 Experimental and numerical investigation of the effect of turbulent inflow on a Horizontal Axis Wind Turbine (part II: Wake characteristics)Qing'an Li, Junsuke Murata, Masayuki Endo, Takao Maeda and Yasunari Kamada Energy, 2016, vol. 113, issue C, 1304-1315 Abstract: The wake of a wind turbine is the driving phenomenon for wind velocity recovery in a wind farm and for the interaction between wind turbines. The objective of this research was to present the turbulent wake characteristics of the Horizontal Axis Wind Turbine (HAWT) by comparing the results between the model fitted and wind tunnel experiments. In wind tunnel experiments, the wind velocities of wind turbine wake were investigated by a hot wire anemometer at different turbulence intensities and wind shears. Then, in order to verify the accuracy of wind turbine wake, wind velocity distribution in the wake was evaluated quantitatively by wake model using Gaussian function. By comparing the results of wind tunnel experimental and numerical analysis, it was found that recovery of wind velocity and expansion of wake deficit area were promoted by turbulence of inflow which was generated by active turbulence grids. Moreover, wake distribution of model agreed well with experimental results in the far-wake region. Keywords: Horizontal Axis Wind Turbine (HAWT); Wind shear; Wake; Hot-wire anemometer; Turbulence intensity (search for similar items in EconPapers) Downloads: (external link) Related works: Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text Persistent link: https://EconPapers.repec.org/RePEc:eee:energy:v:113:y:2016:i:c:p:1304-1315 DOI: 10.1016/j.energy.2016.08.018 Access Statistics for this article Energy is currently edited by Henrik Lund and Mark J. Kaiser More articles in Energy from Elsevier |
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