湍流模型对阀门数值模拟精度的影响

:100225855(2008)0120018202:(1978-),,,,1,2,1,2(1.,310000;2.,310000),,,-,RNG--;;;:TH134:ATheeffectofturbulentmodelsontheprecisionofnumericalsimulationofvalvesZHANGZheng2yu1,ZHANGZhi2quan2,WUXianglian1,ZHUWen2bing2(1.JiaXingVocationalTechnicalCollege,Jiaxing310000,China;2.ZheJiangProvincialBureauofQualityandTechnicalSupervision,Jiaxing310000,China)Abstract:Theconstantfluxgasvalvewithbi2bafflestructurewassimulatednumerically,usingthreedifferentkindsofturbulentmodel.Atthesametime,aspecialhigh2accuracyexperimentalbenchwasbuilttocomparetheaccuracyofdifferentturbulentmodels.Thecomparisonshowsthatthestandardmodelhaspoorpredictionaccuracyandtheresultsofandturbulentmodelisclosertotheexperimentones.Keywords:turbulentmodel;numericalsimulation;experimentalstudy;valve1,,,,,,,,,,,,21,,,,,,,,-RNG--,,15304560(82),2m/s4m/s,8120081©1994-2008ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.=2Pu2P,MPa1u,m/s,kg/m32,,,-,-RNG-,(a)2m/s(b)4m/s23,4m/s,-,-RNG--3(4m/s)3,,,,,,,,44(34)9120081©1994-2008ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.(4)4mmN/mm2HBFC204823525581521623515301962233050162217FC254827526981525524815302452413050216229,,,,3,(,),,PN10DN600HT200DN700HT250,,()DN100,175HBDN100400,170HBDN500600,165HBDN700800,175HBDN9001200,170HBDN1200,165HB4,,,,,1GB/T9439-19881S12GB/T12226-20051S13ISO185-19881S14JISG55011S1(:2007110122)(19),60,,60,-RNG-,-,-RNG-,-4,,-,RNG--,9%,,,1Patankar,s.v.NumericalHeatTransferandFluidFlowM.NewYork:Hemisphere,1980.2,,.J.,2006,34(11):4-7.(:2007.11.06)4320081©1994-2008ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.