摘要
Inthisstudy,aerodynamicbehaviorsofsweptandleanedbladeswereinvestigated.Axialandtangentialbladecurvaturesimpactsoncompressor'soperatingparameterswereanalyzedseparately.AcommercialCFDprogramwhichsolvestheReynolds-averagedNavier-Stokesequationswasusedtofindoutthementionedimpactandthecomplicatedflowfieldoftransoniccompressor-rotors.TheCFDmethodthatwasusedforsolvingflowfield'sequationwasvalidatedbyexperimentaldataofNASARotor67.Theresultsshowedthatthecompressorwithcurvedrotorshadhigherefficiency,rotorpressureratioandstableoperatingrangecomparedtothecompressorwithun-curvedrotors.Usingcurvedrotorsmostlyhadhigherimpactontheoverallstableoperatingrangecomparedtotheotheroperatingparameters.Operatingrangeinvolveschokingpointandstallpointthatwerechangedseparatelybyusingofbendedblade.Forfindingthedetailedimpactofsweepandleanangleontransonicblades,variousformsofleanandsweepangleswereexertedtobasicrotor.Itwasfoundthatsweepanglesincreasedoveralloperatingrangeupto30%,efficiencyupto2%andpressureratioupto1%.Leaningthebladesincreasedthesafeoperatingrange,thepressureratioandefficiencyby14%,4%and2%respectively.
出版日期
2014年05月15日（中国期刊网平台首次上网日期，不代表论文的发表时间）
