蝶阀流场的数值模拟及分析

:100225855(2008)0320036203:(1970-),,,1,2(11,114010;21,114012)FLUENT,,,;;;:TH134:ANumericalsimulationandanalysisonflowinbutterflyvalveLIUJian1,LIFu2tang2(11LiaoningUniversityofScienceandTechnology,MechanicalEngineeringandAutomationschool,Anshan114010;21AnshanFluidEquipmentManufacturingCo.,Anshan114012,China)Abstract:Inaccordingwithcustomersrequirement,thisarticle,usingcommercialflowcalculationsoftwareFLUENT,makes3Dnumericalsimulationandanalysisbasedonthedifferentopeningoflarge2diameterbutterflyvalve.Italsomakesmodificationonstructureofvalveaccordingtotheanaly2sisresult.Furtherresearchshowsthatperformanceofimprovedvalvehasgotbetterandflowresis2tanceparameterofvalvehasobviouslybeenreduced.Itisusefultobutterflyvalvesoptimumdesignthereafter.Keywords:butterflyvalve;design;optimum;flowanalysis1,,,,,,CFDFLU2ENT,,,,CFDFLUENT,DN1400,,,,2211,,,k-(1)6320083=0(2)5uj5t+5ujui5xj=15p5xi+(v+vt)52ui5xj5xi(3)k55t+5ujk5xj=vik52k5xi5xj+Gk(4)55t+5uj5xj=vi525xj5xi+k[C1G-C2]puvwkvivt=Ck2/GkGk=G=vi[5ui5xj+5uj5xi]5ui5xjkPr212DN1400,,L1=5D(D)L2=20D,FLUNENTGAMBIT,,60(1)213,k-,(SIMPLE)10-3velocity-inlet,uin110m/s,,3,100%45%10%3,331112100%345%410%7320083(1)1100%45%10%100%45%10%Vmaxm/s11241232419111841052014Vminm/s000000Pmax/Pa111910311091046107105810211045163105Pmin/Pa-8164102-4105103-2132105-7134102-2187103-2143105:,,,,,,,,,645%710%45%,,,10%,2313(2)(42)8320083(4)112131415143,,,1.M.:,2007.2.M.:,1992.(:2008101118)(38),pp=u22=2pu2p2(%)50%100%0133301253241010%50%12166711177671010%1174190210851716716:4(1),100%45%,45%,,,,,45%,(2),,100%,,24%,45%10%,,7%716%,,,(3),,,,,,(4),,,45%,,,1.M.:,2004.2.M.:,1992.3,,.J.,1999(4):60-664.FluentD.2005.(:2008104109)2420083