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《葉尖噴氣對風(fēng)力機(jī)氣動性能影響的數(shù)值研究》由會員上傳分享，免費(fèi)在線閱讀，更多相關(guān)內(nèi)容在學(xué)術(shù)論文-天天文庫。
1、沈陽航空工業(yè)學(xué)院碩士學(xué)位論文葉尖噴氣對風(fēng)力機(jī)氣動性能影響的數(shù)值研究姓名：李秋悅申請學(xué)位級別：碩士專業(yè)：航空宇航推進(jìn)理論與工程指導(dǎo)教師：申振華20070101沈陽航空工業(yè)學(xué)院碩士學(xué)位論文AbstractThispaperdescribessomebasictheoriesofwindturbine，andbasicissuesofairfoilsandwindturbinewhichincludethegeometricparameters，aerodynamleparametersandSOon，andalsointroduc
2、esthemathematicalandphysicalfoundationsandnumericalstimulatingmethodsofwindturbineblade．Throughanalyzingworkprincipleofthewindturbine，anewtechniqueisproposedwhichusesamethodofjetattheblade—tipofwindturbinetoenhancetheefficiencyofwindturbine．The3-Dnumericalstimulatio
3、nsofthewilldturbineiscompletedinthispaperwhosebladeUSeSNACA4424airfoilasbaselineairfoil，thentheoriginalblade，thebladeofjetatitstrailingedge，thebladeofjetatitssuctionsurfaceattheblade·tip，andthebladeofjetatitspressuresurfacearestimulatednumericallybythesoft'wareFLUEN
4、T．Thecalculatingresultsindicatethattheshapesofthejetnozzlehavetheimportanteffectsontheaerodynamicperformancesofthewindturbine：!ksthejetnozzleisoftheequalsectionalarea,theoutputpowerofallwindturbineswithva'iablejetarrangementsgenerallyislowerthanofthewindturbinewitht
5、heoriginalbladenoraatterhowmanyitspitchinganglesare；butasthejetnozzleiscontracted，thecalculatingrcsultsofitsperformancesaresignificantlyimproved．a(chǎn)nditsoutputpowerwillbeenhancedby10．4％atthepitchingangleis8。．AndjetatthepressuresurfaceofbladesismoresuitabletcIbiggerpit
6、chingangles；theresultsofthejctattrailingedgeofthebladeisbetterthanatthesuctionsurfaceonthewhole，butifthepositionofjetatsuctionsurface，areaofspoutandjetdirectionaresuitable，theresultsofjetatthesuctionsurfacewillbebetterthanthejetatthetrailingedge．Ingeneral，thejettech
7、niqueattheblade-tipisapromisinginthefuture，whichcarlincreasethepowerofwindturbinegreatly,butitstillneedstodofurtherinvestigationstooptimizevariableparameters．Keywords：windturbine；airfoil；numericalstimulation；blade；jet-II-沈陴I航空1二業(yè)學(xué)院碩士學(xué)位論文．Ⅵ．原創(chuàng)性聲明本人鄭重聲明：所呈交的學(xué)位論文是本人在導(dǎo)師
8、的指導(dǎo)下獨(dú)立完成的。除文中已經(jīng)注明引用的內(nèi)容外，本論文不包含其他個(gè)人或集體已經(jīng)發(fā)表或撰寫過的作品或成果，也不包含本人為獲得其他學(xué)位而使用過的成果。對本文研究做出重要貢獻(xiàn)的個(gè)人或集體均已在論文中進(jìn)行了說明并表示謝意。本聲明的法律后果由本人承擔(dān)。論文作者簽名：耋敘t匭p旬年／月如
