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《對(duì)轉(zhuǎn)壓氣機(jī)轉(zhuǎn)子間不同轉(zhuǎn)差下非定常流動(dòng)的PIV測(cè)量》由會(huì)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(kù)。
1、第2卷第2期航空工程進(jìn)展V01.2No.22011年5月ADVANCESINAERONAUTICALSCIENCEANDENGINEERINGMay2011文章編號(hào):1674—8190(2011)02—220—06對(duì)轉(zhuǎn)壓氣機(jī)轉(zhuǎn)子間不同轉(zhuǎn)差下非定常流動(dòng)的PIV測(cè)量侯為民,劉波,趙旭民,王慶偉,曹志遠(yuǎn)(西北工業(yè)大學(xué)翼型葉柵空氣動(dòng)力學(xué)國(guó)防科技重點(diǎn)實(shí)驗(yàn)室,西安710072)摘要:針對(duì)轉(zhuǎn)壓氣機(jī)前后轉(zhuǎn)子不同轉(zhuǎn)差下的轉(zhuǎn)子間流場(chǎng)分布有其自身特點(diǎn),本文采用粒子圖像速度儀(Par—tieleImageVelocimetry,PIV)測(cè)量前后級(jí)轉(zhuǎn)子等轉(zhuǎn)速及不同轉(zhuǎn)差
2、下級(jí)間通道內(nèi)的流場(chǎng)結(jié)構(gòu),并對(duì)測(cè)量結(jié)果進(jìn)行了分析。結(jié)果表明:不同轉(zhuǎn)差條件下壓氣機(jī)轉(zhuǎn)子間流場(chǎng)分布隨轉(zhuǎn)差及相位呈現(xiàn)較為明顯的變化,前級(jí)轉(zhuǎn)子葉柵尾跡分布隨不同轉(zhuǎn)差會(huì)對(duì)后級(jí)轉(zhuǎn)子進(jìn)口流場(chǎng)產(chǎn)生較大擾動(dòng),必然會(huì)對(duì)壓氣機(jī)的性能產(chǎn)生較大的影響。關(guān)鍵詞:航空航天推進(jìn)系統(tǒng);對(duì)轉(zhuǎn)技術(shù);壓氣機(jī);PIV技術(shù);轉(zhuǎn)差;流場(chǎng)結(jié)構(gòu)中匪分類號(hào):V231.3文獻(xiàn)標(biāo)識(shí)碼:APIVInvestigationoftheInternalFlowbetweenTwoRotorsinaDual—stageCounter-rotatingCompressorunderRotating-speedD
3、ifferencesHouWeimin,LiuBo,ZhaoXumin,WangQingwei,CaoZhiyuan(NationalKeyLaboratoryofScienceandTechnologyonAerodynamicDesignandResearch,NorthwesternPolytechnicalUniversity,Xi’an710072,China)Abstract:Theflowfieldbetweentworotorsundertherotating-speeddifferenceinthecounte卜rotati
4、ngcompres—sotwillaffectthecompressorperformance.Inthispaper,somerotating-speeddifferencesaremeasuredandtestedonadual—stageaxialcounter-rotatingcompressorbyusingtheparticleimageveiocimetry(PIV)techniquetodescribetherotor-rotorinteractionofflowfieldstructure.Theresultsofanaly
5、sisshowthattheunsteadyflowfieldsunderthedifferentrotating-speeddifferencesandphasesarevariedevidentlyandthecontributionofthemovingflowfieldgeneratedbytherotorsandthatofthefirststagewakewillaffectthesecondrotorinletflowandresultinevidenteffectsonthecompressor’Sperformance.Ke
6、ywords:aerospacepropulsionsystem;counte卜rotatingtechnique;compressor;particleimagevelocimetry;rotating-speeddifference;flowfieldstructure0引言前后級(jí)轉(zhuǎn)子相對(duì)反向旋轉(zhuǎn)的對(duì)轉(zhuǎn)壓氣機(jī),不僅能夠簡(jiǎn)化航空發(fā)動(dòng)機(jī)結(jié)構(gòu),大大減輕發(fā)動(dòng)機(jī)自身重量,還能夠突破葉輪常規(guī)負(fù)荷,大幅度提高葉輪機(jī)械做功能力‘卜副。這種采用新技術(shù)、新結(jié)構(gòu)的對(duì)轉(zhuǎn)技術(shù),作為提高發(fā)動(dòng)機(jī)性能的有效途徑之一,在航收稿日期:2010—10—09I修回日期:2011
7、-01-05基金項(xiàng)目:國(guó)家自然科學(xué)基金(50976093)通信作者:侯為民,houweiminxa@163.corn空發(fā)動(dòng)機(jī)研究發(fā)展中越來(lái)越受到重視[5刁]。應(yīng)對(duì)提高葉輪機(jī)械效率的持續(xù)要求,需要了解旋轉(zhuǎn)機(jī)械內(nèi)部的流動(dòng)現(xiàn)象。軸流雙轉(zhuǎn)子對(duì)轉(zhuǎn)壓氣機(jī)內(nèi)部流道中,由于前后級(jí)轉(zhuǎn)子對(duì)旋,使得轉(zhuǎn)子間區(qū)域的流動(dòng)較為復(fù)雜獨(dú)特,關(guān)于轉(zhuǎn)子間區(qū)內(nèi)部流場(chǎng)結(jié)構(gòu)的測(cè)量,研究,對(duì)于進(jìn)一步提高對(duì)轉(zhuǎn)壓氣機(jī)的性能,揭示葉輪內(nèi)部轉(zhuǎn)子問(wèn)流場(chǎng)復(fù)雜流動(dòng)結(jié)構(gòu)和流動(dòng)機(jī)理,了解前后級(jí)轉(zhuǎn)子之間的氣動(dòng)匹配工作規(guī)律,具有十分重要的工程應(yīng)用意義。針對(duì)葉輪機(jī)通道內(nèi)的流動(dòng)測(cè)量,受到葉片復(fù)雜幾何形狀、狹小的通
8、道空間及轉(zhuǎn)子高速旋轉(zhuǎn)的約束第2期候?yàn)橹诺龋簩?duì)轉(zhuǎn)壓‘t機(jī)轉(zhuǎn)子問(wèn)不同轉(zhuǎn)蔗下非定常流動(dòng)的PIV測(cè)艟22限制.傳統(tǒng)的氣動(dòng)測(cè)螗手段不能滿足流場(chǎng)測(cè)量的要求。近年來(lái),隨著激光測(cè)量