基于Fluent的调节阀内部流场数值模拟

Fluent11211000412100037NumericalsimulationbasedonfluentaboutflowfieldofcontrolvalveXUHong-hai1YANGLi1ZHANNing21CollegeofElectromechanicalEngineeringNorthChinaUniversityofTechnologyBeijing100041China2BeijingACTMechanical&ElectronicTech.Ltd.Beijing100037China1001-3997200907-0214-02【】CFDFluentFluent。【Abstract】Itestablishedinternal3Dflowfieldofcontrolvalve.ThenumericalsimulationofcontrolvalvewasaccomplishedwiththecommonsoftwareFluent.BycomparingsimulationvalueandtheoreticalvalueofflowcoefficientitisprovedthatFluentiseffectiveintheflowfieldsimulatingofcontrolvalve.Itcanprovidetheorybasicforthestructureimprovementofcontrolvalve.KeywordsControlvalveInternalflowfieldNumericalsimulationFlowcoefficientTH16TK414.1+8A＊2008-10-121、、/。。。。CFDCFD。Fluent。21。1CATIA。25。3。κ-ε[1]。1坠ρui坠xi=012坠ρui坠t+坠ρuiuj坠xi＝ρfi-坠p坠xi+坠坠xjμ坠ui坠xj＊＊+-坠ρui′uj′坠xj＊＊23κ-ευt=Cμκ2ε34κ坠κ坠t+uj坠κ坠xj=υt坠ui坠xj+坠uj坠xi＊＊坠ui坠xj-坠坠xjυtσκ-＊＊υ坠κ坠xj＊＊-ε45ε坠ε坠t+uj坠ε坠xj＝-Cε1坠ui坠uj坠ui坠xj-坠坠xjυtσε-＊＊υ坠ε坠xj＊＊-Cε2ε2κ5ρ—ui—p—μ—υt—κ—ε—υ—Cε1=1.44Cε2=1.92σκ=1.0σε=1.3。4FluentGambitMachineryDesign＆Manufacture820098214。15～202。、[2]。25Segregated1000kg/m3υ=0.001003Pa·s。κ-εID。。SIMPLE0.20.50.5、。6DN40150003～10。3、4。[3]。346.115、6。、。。5627。。738。。84。。5。。6.2278～323K5～40℃105Pa1hm3/h。8Fluent215*112211000882010051Thesimulationstudyoncoachsuperstructuresafetybasedonroll-overLIChen1ZHOUWei1SIJing-ping2HANLu21ResearchInstituteofHighwayMinistryofCommunicationBeijing100088China2InnerMongoliaUniversityofTechnologyHuhhot010051China1001-3997200907-0216-03【】、。。、。【】【Abstract】Roll-overisoneofthemaintrafficaccidentformsforcoachinvasivedeformationsuchassuperstructuredisassemblyorsinkislikelytocauseseverepassengerscasualty.Researchingroll-overus－ingFEsimulationanalyzinginfluencefactorofcoachsuperstructuresafetyandproposingimprovableopinionwhichareofguidingeffectforcoachdesigningmanufactureandsecurityestimate.KeywordsCoachRoll-overSuperstructuresafetyFEsimulationTH16U46TP391.9A＊2008-10-12＊2007318223431、。、。21、、2、3。4。7.8×10-9t/mm3E2×105MPNU0.3SIGY207MP。2.11。KV=10Q/△P姨。KV—Q—m3/h△P—KPa。DN40-DN801。1KV。1DN40-DN807CFD。、、、。。1.M.20072.FluentM.20043.J.1999460～664.1000M.2006mmKV4050658024.5830541.578768.1366597.94851.6678%3.94675%8.1534%2.0515%KV254063100△PKPaQm3/hKV68.95569103.406420.40952524.9942324.58724.579167.29914100.924634.0969341.7862441.56341.594467.992186.89956.1703593.1731768.1268.153368.8828103.314981.3192999.5267897.9897.917△△△△△△△△△△△△△△△△△△△△△△△△△△△△△△△△△△△△△△MachineryDesign＆Manufacture820098216