新型H型叶片潮流能水轮机不同翼型水动力性能分析.pdf

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1、水利水电技术第47卷2016年第10期新型H型叶片潮流能水轮机不同翼型水动力性能分析何中伟1，郑源1，梁晓玲2，阚阚1，付士凤1(1．河海大学水利水电学院，江苏南京210098；2．河海大学文天学院机械工程系，安徽马鞍山243031)摘要：为了探究垂直轴潮流能水轮机转轮叶片翼型对其水动力性能的影响，在保持水轮机密实度相同的条件下。采用Fluent软件对4种不同翼型的H型直叶片潮流能水轮机进行了三维流场非定长数值模拟。通过4种H型叶片翼型对转轮动力扭矩特性和水能利用系数的影响，分析了潮流能水轮机水动力性能。结果表明，

2、NACA0015翼型的水轮机单叶片动力扭矩最大值明显高于其他3种翼型；而整体转轮扭矩最大值取决于其不同的来流速度等运行工况。从整体上看，不对称翼型NACA4415的水轮机水能利用效率优于其他3种翼型。本研究为新型潮流水轮机的设计和翼型的选择应用提供了依据。关键词：垂直轴潮流能水轮机；翼型；水动办『生能；数值模拟doi：10．13928／j．cnki．wrahe．2016．10．010中图分类号：7IT、刀43文献标识码：A文章编号：1000．0860(2016)10．0045．05Analysisonhydrody

3、namicperformancesofdifferentairfoilsfornewH-typebladeoftidalcurrentenergyturbineHEZhongweil，ZHENGYuanl，HANGXiaolin92，KANKanl，FUShifen91(1．WaterConservancyandHydropowerCollege，HohaiUniversity，N删ing210098，Jiangsu，China；2．CollegeofMechanicalEnsineering，WentianCol

4、lege，HohmUniversity．Ma’anshan243031，Anhui，China)Abstract：Inordertostudytheimpactfromtherunnerbladeairfoiloftheverticalaxistidalcurrentenergyturbineonitshydrody-namicperformance．the3一DunsteadyflowfieldnumericalsimulationsaremadeonfourkindsofH-typeFunnerbladeair

5、foilsoftheverticalaxistidalcurrentenergyturbinewiththesoftwareofFluentundertheconditionofmaintainingasanleturbinedensity．ThroughthesimulationsmadeontheimpactsfromthefourkindsofH-typebhdeairfoilsonthedynamictorquecharacteristicsofrunnersandthewaterpowerutilizat

6、ioncoefficients，thehydrodynamicperformanceofthetidalcurrentenergyturbineisalia·lyzed．TheresultshowsthatthemaximumdynamictorqueofthesingleturbinebladewiththeairfoilofType-NACA0015issignif-icanflyhigherthanthoseoftheotherthreekindsofairfoils，whilethemaximumvalue

7、ofthewholerunnertorquedependsonitsoperationconditionssuchasvariousincomingflowrates，etc．Generally，thewaterpowerutilizationcoefficientoftheturbinewiththeType-NACA4415asymmetricairfoilisbetterthanthoseoftheturbineswiththeotherthreekindsofairfoils．Thisstudyprovid

8、esabasisforthedesignofnewtypeoftidalcurrentenergyturbineandtheselectionofitsairfoil．Keywords：verticalaxistidalcurrentenergyturbine；airfoil；hydrodynamicperformance；numericalsimulati