Performance Study of Wingleted Horizontal Axis Wind Turbine Blade under Heavy Rain

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Title:	Performance Study of Wingleted Horizontal Axis Wind Turbine Blade under Heavy Rain
Other Titles:	帶翼尖小翼水平式風力發電機葉片於大雨下之性能研究
Authors:	Tung Wan;宛同;Chiu, Tsung-Yu;邱宗祐
Contributors:	淡江大學航空太空工程學系
Keywords:	風力發電;翼尖小翼;二相流;空氣動力分析;Wind turbine;Winglet;Two phase flow;Aerodynamic analysis
Date:	2010
Issue Date:	2013-03-22 19:38:43 (UTC+8)
Publisher:	臺北縣淡水鎮 : 淡江大學航空太空工程學系
Abstract:	有鑑於地球環境日益惡化，科學家開始研究較環保的替代能源，風力發電因而蓬勃發展。本文首先以 S809機翼剖面及NREL Phase VI 風力機葉片為原型進行數值模擬驗證'，和實驗比對獲得良好結果。為了增加風力發電的發電效率，本研究在葉片外形加土翼尖小翼，期能減少翼尖產生之誘導阻力，進而提昇風力發電的輸出功率。同時考量到台灣氣候炎熱多雨，故利用多相流方法針對大雨下之風力機性能進行數值模擬。結果發現具翼尖小翼之風力機葉片可提升推力及功率係數分別達5.7%與4.9%，且大雨亦可增加風力機葉片推力之1.6% '本研究結果可應用在未來風力機葉片設計上。 As global wanning becomes more severe and wind turbine continues to grow larger, problems with turbine blade aerodynamics is also become more critical. In recent years, the benefit of the airplane winglet leads us to put this device on wind turbine blades to improve the efficiency of power generating. In this study first the 2D S809 airfoil and 3D NREL Phase VI wind turbine blade simulation are validated. Then the heavy rain effect is simulated through the two--phase flow numerical method and the performance of wingleted turbine with-without-rain conditions is fully investigated. Our results show that about 5.7% and 4.9% performance increase in thrust and power respectively are achieved if winglet is added to our turbine blade; and heavy rain situation will also enhance the thrust of this wind turbine by about 1.6 percent. Thus these findings should be considered in future wind turbine design phase.
Relation:	第七屆海峽兩岸航空太空學術研討會論文集, pp.197-208
Appears in Collections:	[Graduate Institute & Department of Aerospace Engineering] Proceeding

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