基于Fluent的阀门开启过程阀芯气动力仿真研究

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HydraulicsPneumatics&Seals/No.3.2011Fluent1213(1.,100083;2.,526238;3.(),100176):FluentUDF2D,。:;;Fluent;;UDF;:TH138.52:A:1008-0813(2011)03-0013-03SimulationResearchofUnsteadyFlowFieldofValveBasedonDynamicMesh&UDFofFluentZHANGGong-hui1HUXi-sheng2ZHOUZhi-hong1YUANYe3(1.Civil&EnvironmentEngineeringschoolofUniversityofScienceandTechnologyBeijing,Beijing100083,China;2.GuangdongZhaoqingL&VCo.,Ltd.,Zhaoqing526238,China;3.Blue-starchemicalmachineryCo.,Ltd.,Beijing100176,China)Abstract:Byutilizingdynamicmesh&UDFofFluenttosimulatetheunsteadyflowfieldof2Dmodleofvalvethatisbesimplified,thisessaycollectsthevariationlawofaerodynamicforcethatworksonthevalvecorewhenvalveopens.KeyWords:valve;unsteady;fluent;dynamicmesh;UDF;aerodynamicforce01,,,,,。1、,,。,,,Fluent2D,。,0.5mm。11.1,2D2。Gambit2D。,,,,,,3,。:2010-09-09:,,2008,;:。13/2011322D34,34。,0,(412),Fluent,,[2]。4,,[3]。:,valve,。,。1.2Fluent2D,,。,k~ε,:ρ=1.225kg/m3,μ=17.894×10-6kg/(m·s),101.325×103Pa,10kPa,0kPa,0.0032mm。,:,。UDF,,:#includestdio.h#includeudf.hDEFINE_CG_MOTION(valve,dt,cg_vel,cg_omega,time,dtime){if(time=0.01)/**/cg_vel[1]=-0.05;/**/elsecg_vel[1]=0.0;}/**/,valve,UDF。1.3,0.0005s,30,2000,,。,。22.1,0.1m/s、0.05m/s、0.025m/s、0.01m/s、0.005m/s,510kPa,,。5———,,,,。,。0.1m/s,。,,,,。2.2,(21)14HydraulicsPneumatics&Seals/No.3.2011      1111 1 1 1               ,(),。、,。(),,,,,,。[1].[M].:,1994.[2]CONSTANTINOUMC,SYMANSMD.Experimentalstudyofseismicresponseofbuildingwithsupplement~fluiddamper[J].JournalofStructuralEngineering,1993,293.132.[3],.[M].:,2005.[4].MATLAB[M].:,2004.[5]MAKRISN,DARGUSHGF,CONSTANTINOUMC.Dyna-micanalysisofgeneralizedviscoelasticfluids[J].Jour-nalofEngineeringMechanics,1993,119(8).[6].———CFD[M].:,2004.[7],.[M],:,1983.[8].[M].:,2006.[9].[J].,2001(1)..............................................40m/s2、10m/s2、2.5m/s2、0.4m/s2,610kPa,,。6———6,。,,,,。2.310kPa、20kPa、50kPa,70.05m/s,,。7———7,,,50kPa,。3:,;(),;,,,。,、,、。[1],,.UDF[J].,2008(50),2.[2].[D].,2007.[3],,.FLUENT[M].:,2009.[4],,.FLUENT6.3[M].:,2009.[5].Fluent[J].,2008(2).[6].CFD[D].,2005.[7],,.[J].,2008(8).(14)21

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