带有热源的流场仿真

1、注：小弟刚学workbench没多久，有许多地方还不怎么熟。该案例是小弟自己摸索出来的，里面还有好多知识不是很清楚， 所以写的也比较水，希望各位大神 看了以后提出宝贵的意见，小弟不胜感激。希望能和大神们多多交流，这样 才会有长远进步。一、带有热源的流场仿真热源材质为copper （铜），中间隔热材料为 wood （木），采用冷却水冷却，水温为10C流速为0.0001m/s。周围大气环境为 20 C。二、三维建模：黄色为热源内径为 24mm外径为30mm，绿色为隔热材料内径为 20mm外径为24mm，内腔为 流体区域直径为 20mm,其长度都为60mm。另存为x_t格式（可以导入到 workbe

2、nch里面）三、冷却仿真：1、导入几何模型打开workbench14.0加入FLUENT模块在 Geometry里面导入模型GraphicsOjOD25J3U125050.00 (mm)3T.5D创建对称面以及生成流体区域0.0020.0040.00 (mm)IOjOO30.00定义热源、隔热材料、流体各个面名称VZPlane-卜 “FP Importl卜“林 Syrnmetryl-u Fiinpid interfacefluidside卜助 fluidin扌竜fljidcut（車 reyiuninside|-“#潼reyuanoutside2 reyuanupsidereyuandownsi

3、dei 眩 interfacesolid side；辛星 zureoutside| "車 zureupside- zuredown side symmetryfluid就 symmetrysolid由“夺 3 Part筑 3 Bodiesv2、网格划分对流体域采用自动网格划分，同时设置膨胀层，膨胀层参数设置如图所示ScopeScoping MethodGeometry SelectionGecrmetry1 BodyDefinitionSuppressedNoBoundary Scopirg MethodG亡ometry SelectionBoundary1 FaceInflatio

4、n OptionFirst Layer ThicknessFirst Layer Height3.e-004 mMaximum Layers5Growth Rate12 |Inflation AlgorithmPre对热源和隔热层采用自动网格划分5 生I严CM* 9 BJIMG曲務rtwtN Mtl>W4127ULU3 JP 773| | Jbiun-dur Muhud 7Ed £玉 DMfgftr 环Iebh 斗 znn曰 TJJ Cahvcuth111 加 tecb 曰庖kwd-n 用 UnftE hEd 严 Iri AraSEHMH”物 bJHJWf 4f±K&

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6、如HCB* Mfcn 忑 EnkMEudSMhal 'M«Pr lAllAWnAunnfe'Mi itii|hwhxi NWP*¥rh CMwrnng Qpt>?n 卜"rai Pisiiri ConiKlad > ±“Pd hfftifiimNg-Mo,XM哥【刖ISBM nMnc1M-. 1HWMfflM$Ul.'flWMSZWHjrWOJCevtI.epLb检查网格质量：skewness （偏斜）和 Orthogonal Quality （正交品质）MbeH MrtnnGirtralj 偏斜CantioLe |H

7、&1Li K ML5J0DCISOMLDK'DCiojm &BorMSDiment MrirKi正交品质3、进入FLUENT流场分析(1)双击Setup然后点击OK进入flue nt界面，卡 Unsaved Proja-ct - WorkbenchFile View Tools Urets HelpNew Open. 討 Saw £ Save As.oolbciximport. * - ReccMinect Refresh Project Update Project Project ©Con(Project SchernaticS Analysis

8、 Systems也 Dasigm.Assessment删 Electric Expliat Dynamics Fluid Row - Blow Mol ding (POLYFLOW) 冋uid Flow Extrusion (POLYFLOW)© Fluid Fl(CFX) Fluid Flow (FlUENT) FlwdFlpwROLYFLOWl也 Harmonic Response型 Hydradyna mic Diffradson鶴 Hyd rodyna mi c li m e ResponseI匚巨ngiriEQ Li near Buckling團| Magn-etostaf

9、cwA1念 Fluid Hem (FLUENT2邮1 GDvrietry扌3廉畑曲#亠4靈NS审“5碉 Solulian启60 Results诸 jFluid Flw(FLLJB>nl(2 )在general里面点击units设置温度单位为CProblem SetupModelsMaterialsPhagesCell Zone ConditionsBoundarv Conditions Mesh Interfaces Dynamic Mesh Reference VakjesSolutionSolutiori MethodsSolutiQn ControlsMonitorsSolutia

10、n Initihzation Calculation Activities Run CaloitionResultsGeneralScale.J Ched<Report QualityDtspJay.SolverMeshTypeVelodty Formulationa Pressure-Basedo AbsoluteDensity-BasedRelati-eTimeo SteadvTransient| GravityUrits.f(3)打开能量方程Energy on,然后选择标准k- e模型点击OKLj Viscous Model1: MeshProblem SerupGenerallo

11、ddsMaterialsPhasesCell Zone Conditions Boundary Conditions Mesh Interfaces Dynamic Mssht-ReferenceModelsModelsMultiphase - Qff _Energy OnRadiation - Off Heat Exchanger - Off Species - Off Discrete Pha&e - OffSolutionSolution M«Solulian C< MonitorsSoJubon Di Calais tior Run CalculResultsG

12、raphks a Plots ReportsModelInviscidLarmner.Sp日lart-Allmarag (1 eqn)SB-!-!"-!-!k-omega (2 亡 qn)Transition k4d-omega (3 eqn)Transition S5T (4eqn) Reynolds Stress (7 eqn)Scale-Adaptive Simula bon SAS) Detached Eddy Simulation (DES) targe Eddy Simula tian (LES)k-epsibn ModelModel ConstantsUser-De f

13、ined Functionsa StandardRNGRealizableTurbulent Viscosity'noneNear-Vyall TreatmentPrandtl Numbers Standard Wall Functions Scalable Wall Functions Non-tquiibrium Wall Functions Enhan匚Ed Wall Treatmerit User-Defined Wall FunctionsOpbans_ Viscous Heating Curvature Corrector!TKE Prandti NumbernoneTDR

14、 Prandti NumbernoneEnrgy Prandti Numbefnone 、CanoeJHelp(4)确定材料属性点击flue nt database选择材料类型为 fluid 选择水 water-liquid (h20)，点击copy后close。固 体材料选择solid点击creat/edit后点击flue nt database选择热源copper和隔热材料 wood ,然 后点击 copy 后 close。PraMem SetupGeneralMmdebPhawsCel Zone Candrtons Boundary CondHons Mesh Intef fecesOy

15、nmi： MMMarc riaPsMateriaisFk«iaraLfnnum司El >- re«le/Edit MaterialsNameFMate rial TypeFLUENT njid MateralsChemical ForrnulaMi：Orcter Materiafe by* Niamei Chemicai FormulaiFLU&H Dmiabm 建一Uwr -Defined Dotdbooe.,-Pr 邙erDREDensiy Ckg jmRCp Specific Heat) th网 4e)ThcfmS 5du 牝約(w>n-k)503

16、 si tv 临师 曙)DdeiaOasgChange/Create确定固体材料Ptodeffl SebjsGeneraJPhasesCd Ecoe ConckiQfW Boundd-rv CwdlkMis Med*i InterfaEMDynamic Mash Reference VaiiBSducnSdutDTi McdiKfc SoiulNn QnUoAiMotorsSdubon Jnbaiz-abon 如 am 晦Rjjn CakjJaboRjuhj：Graphics aid A.nmatDri5 FkiteReportMaterialsMaterrisFluid初tCTfc)ihJ5

17、eHiMnmunSJtB副心Q Create/EdBt MaterialsNameNunnumFWtM 烬IroUOder Ma"Erds b?-4 WkCfmMFftfwdaChemi FomiaiFLJ&rr Said MdLeridtepTnpgf 快sonsty OcgNJ中(Specific west Q 何 4)Thermal Cordjlrtwirv 倣加4i FUQTQjl如jUsB-De<frted DLabase-.(4)在左侧控制树中点击 cell zone conditions给材料赋予属性。流体域：点击flue nt选择类型为fluid点击ed

18、it选择材料为 water-liquid点击OKrobtejn SeipMMSshKfftendtBoundary Gviibors Mesh Jnta-fecES DyftmcIWiRelitrcnoe YaLmsSoLFHfllEthod；SokAonCohfrcfaMeritorBdLiwi nbara3wiCakuiatofi ActihilK5 bri CdUaiicn趣sitsGrighici m AfwniWiPbts-fcwteCell Zinc Con dilionslore2chw Name I AuidMeshMaLmd UameramtFrRt 他曲 Wm Poruus

19、- Zone | tnbediEd LES | Rcactcin | 'Sarct Tbtth | Fixed Axs | MJtEhaseX.(m) 0讪emtarrt:0CMtKMT2|'Ro ta twin-Ans CrqriRota tan-Axruction rr* if（ainj CK Dt 三,用> 愈晤应i反功卜辰脂用IWJ 宾反应I反作用力I艮佢用推广舀就讪il画?一屯调”OiipiiyMw-| £qvf. Froftts.Operaong Cdndnnns-.® Super Aod VdKrtvWlr»l*efoMy同样，

20、定义隔热材料（neiqiang）属性为wood+o植5 SehdPStrtfJModes MaEafcPhateimarie匚pr>aha：;Cell Zone CdFiditionsZonerevuariZVWN*fflfreoanqMabefdl NamFrjmt M&iyi au|TtmfrMed-i ltoowi FtXBd VakesEkhrdary Condbors Hiwh InlfffiKet Dyr#rtcMegh Rjtfeenct YjfcjesSciu bon Methods saj&snGonbftsH MonkrsSmiChh InMiaton

21、 Cakukhon AcIksGrapKS and JuwnaiWK PteAjR世wtureParanieterL. Oatrt; Cordrton-5,. | OspayMesh.Forces FormJScrFhYdedVrioaty定义热源材料为copper,并定义体热源,在source terms方框前打上勾，然后点击下面的sourceterms点击edit设定数量为1，定义热源单位体积发热为10000W/mA3，点击0K则完成定义。ProbtewSehpGenerdMMrObPhases/阪乂 IM灿！Bomdar y Zondttors Mesh Jnte-fecesDyrurr

22、tclta«h Reference ValuesSohbonSobOon Methods SoLOon Cantrote MonrtOftSoLOon Inataatxxi QkvbonAcsg RmOkiMOanO apbcs «xl AnrMtcm PtotsReportsCell Zone ConditionsCell Zone ConditionsZone pGcfZone pGcfttyttyl 妙 Cop.Pararrc»5.r CpeatroCcntom. | &>pY Mesh.POfCU( FfXTYVjdtbX*® Sc

23、oerfbal VdootyPhysa VttooryPararrcfcrs. CpeatrqCcndtom. |POfCU FOHWjitithX ®' Stoerfbai VdootyPhysfcal vttoory(5)设定边界条件流体入口 fluidin定义其类型为 velocity-inlet，设置进口流速为 0.0001m/s,在turbulenee栏里面 选择intensity and hydraulic diameter设定湍流强度为 10%水压直径为 0.02m,同时定义水温为10C,点击OK完成定义Mesh斤dHehi SetLCJGne<R Mod

24、els MdUrial±Phafin.Cd Zone GatfibDrsMtth mfcp-fKCS Dynac Mesh Refer enoe VahesScM&n MethodsSdutern Cmirds M&rilBflSoMm 讨辈（Han CflioJdtKn Arb'/ities Run Camila HonGrapbcs arid ArttnabonsPlotsRepotsftJdbut rilwfluid 站电riteFasd ctette nlBnoNUI ntew 话 q|ang in tenor-rsyuan rEYuandcmnsid

25、E re-pLHrLnadE- reuonouiaacte reyuafMJpsbesyTTTnelrYSotd-naqiang s YTTme-trirsoid < eiuan luredbnside zufeiMjtBcle流体出口 fluidout定义其为 pressure-outlet类型，单击 edit设置出口压力为 0，在turbulenee 栏里面选择intensity and hydraulic diameter设定湍流强度为 10%水压直径为 0.02m，单击 OK 完成定义Problem SetupGewdMcddsMaterialPhasesCd Zone Cord

26、 barsMesh Ln ter faces Dviamc Mesh Refa'Erce VduesSdulianSofcjBon Method! SoiufcnCfflMrciii IWtorfl 拠踰讯嗣為血 Uaia 血 M vi bH RixiCalcda 血Grapjics .and AmratDrs PfateReportsBouviidiiry CondFlionszwftjJK|一 = »一= iueimta*facndE 孤宕辰 mt<rigr<Nfi4angrtyLmdewnias rtTUlrinside ©uanoutade rr

27、iHjan-psd-e «rfflmetryAuid syTTYnetrysold -neaang £ Yirme tr !|TEoi 己 弋 yuan Zur«fowrtSide zureutade jnjinsipsvJeEKtU"更1曲Copr-|Praftc£”.P*. jper auiq 匚 Motions LWAay Meinii.P&XC C&"曲y心&MlnMrinl-7r»热源上下面设定为绝热面(reyuandownside、reyuanupsider )同时选择材料为 copper

28、GenefalModelsHarxfdkR-I35HCel Zone Oydocrv-lnba-aoE5 >vrancMMh =Lefis-iGrce VMksSoli l»n Methods- 汕 t»n Ccndcte KomtoraSoil bon Imhsteaban Cakiiaiop A£tr*Tb« Run CataiffiionfitstJaflnj Anmng;PMs'esfflwrwcWe:s化*3-rwicwnsde-FixtureI： 皿匕Ccpy. |PngHes .| iffmiElmJn jgphiB SwiA

29、M WallAd：i3c«it Cefl ZcnerEf-uanOK'*PlI设置热阻上下面为绝热面(ezudownside、rezuupside)同时选择材料为 woodPhamC«1 Zine Ccrdit»n5MjMrrt； CdRmwntumTheHJ Cisndrtxrsmi吐詁FjTiTirt- -reruai nrafoisde'f H-ffl Fix TenvefW-re- CiWFBdiin IlMlffir H»etiRsIb ton i Specie | Dffl | iUtohmel UD5 | WdF*n|Swe

30、4sne-Me5HmwfM5： ynorrtcNted Reference VdiK5Sduton Metrnds 5duton Coninft MontagsSfiutsn CdcUstofl fctfftes Rur CJaiaJtofi aeha： erid-irmetwni PtaepvtvrnerfaoelljQuie rterfeoesdjdsde rtenw-flud rlKnar-npBbsng iPDtfiafM* re-fLdndbMncbde r«-jua<VEcb nsjanojfcsSe refimjpwte iVflWYHErvI:ES/t热源外壁与

31、大环境是对流，选择热源外壁reyuanoutside，在thermal里面首先定义其材料为copper，然后选择convection，设定传热系数为10 (图中不小心输入了50.),大气环境为20 °C点击OKnMrFhausCd Zcr« G»d«n5MeSiCrteKK Ovn*；*txjt V«kjMsorter Me fihoftManUTGSdutcr ntHabn CaioAInn QkfiGBBhri SrDhc wd AiwnatHns PfateRepsr,热源内部为导热，选择热源内壁reyuaninside，在thermal

32、里面首先定义材料为copper，然后选择Heat Flux（热流密度）选项，定义热流密度值为400点击okainGeneralGefl Zdt« QNKkKn5Sdutar IntHkiabvi CakLrtabon 遇 RunGaWBhri:esjrtsSrqDho and Anna tkns PfateRepcrtiZantirW«jtiIh- friKHZsdr flDtfhuKixtode rilEEr*l>drmerxl忘SfTME*Yftld svnwfrrsQis-noqmg YTTn#k*YaaH-rrin/uM jj-fdOA-nade nFemtd

33、eKi<riiahWmwuUc.Ctf Gondtsn*Pi出E SigGeneraiModeFatEnasPassesGd Zcre Gondtons Boundary CDrdilXMK 旧：IW!：R CMmfcHeh Hefewnoe V-aLesMesh IntRriHcnnInlKeSSdurtcr-tetwds Sdufeori CRWub MsnrtBrsSdutcr ZahJBlnn AcfrfllJM： HunCdcuialnnHjMdb&ep*»cijnd fcwrialMrwfieiwti：OnKrteJEat r.同样定义隔热材料外壁条件，选择

34、zureoutside，在thermal里面首先定义材料为wood，然后选择Heat Flux（热流密度）选项，定义热流密度值为400点击ok。Kt«h lh«f r*£M YfwvKhteii tfe-cwe V-aLtsEdhtunCtfWds Honbors-Siffljbor!CakuialMn Jkfribw如（6 ）创建流固耦合面在 mesh in terfaces 里面点击 create/edit，在 mesh in terface 里面定义 in terface，分另 U单击选择in terfacefluidside 禾口 in terfaceso

35、lidside ,勾选 Coupled Wall （很重要）,单击 create 后点击 close。（7）解决方案solution method里面默认选择simple选择GeneralModelsMaterialsPhases匚亡II Zone ConditionsBounds1"/ ConditiDnsMesh InterfacesDynamic MeshReference ValuesSolutionidutoon MethodsSolution ControlsMonitDT5Sdution InitializationCalculation ActivitesRun Ca

36、kulatanResultsGraphics 已rd AnimationsPlotsReportsPressure-Velodty CouplingSchemeJM匸SIMPLESpatial DistiltizationGradientLeast Squares Cell BasedPressureStandard存MotnentumSecond Order Upwind*Turbulent Kiietic EnergyFirst Order Upwind丁Turbulent Dissipation RateFirst Order Upwind丁ransient FormulationENo

37、n-Iterative Tme AdvancerTpent-Frozen Flux FormiJatjon_ Pseudo TransientHigh Order Term RelaxationOptoDefaultdHelp(8)在solution controls中保持默认松弛因子设置HraDiem erupGeneralModelsMaterialsPhasesCell Zone 匚ondibonsBoundary tonditions Mesh Interfaces Dynarric Mesh Reference VaJuesSolutionSolution Methodsolutio

38、n ControlsMonitorsSolution initialijationCalcuhtion ActivitiesRun CskulebonResJtEGraphics and AnimationsPlotsReportsPressure0.3Density1=Body Forces1Momentum0.7Turbulent Kinetic Energy0.8UIUIII Ull <i> Ullll U I CliUnder'Re aitabon FactorsDefault| EquationsLimits| Advanc亡d,*Help(9)在监视器中选择残差

39、监视器，在residual monitors中勾选plot打开残差曲线图，设置收敛精度要求为0.0001FhaasBoundary 匸ordrionsD piamc Mesh RefefCfwicEdu Hon汕血他thNis5o*j&on Cqrfrqfe占g?TOCdaiabon ActrTt>K RunC4kU4fiGriphHX md Mnutuns PtaReportsIMdLdta, £tithIk » Rrn HcritwspborvExjuartnns工 frifl: tn- gRe/ Patyrtxknx高CUMfc. ADM,- w Hgi

40、l»QD *|«r勇齡场 1« S1«rtpDOO3Re54kkJtan tw Check -Comw osict AasoL tc Cn&IZ1團卩伽Z1-回|O.OQ012-MiEbdt¥匣)O.DOOflQittw厂t!：；|<5cafeOornpUtt Lacil Scata-»«4utE<M | gfel: | |F8slcEAa GjnCa< j(10)计算初始化。单击 solution initialization ，选择标准初始化standard initialization ，co

41、mputefrom 设置为 all-zones,单击 initialize。Uompute fromRjeference FrameTurbd&nt Kinetic Energy ffn2/s2Probetn SetupGeneralModeisMaterialsPhasesCdl Zone ConditionsBoundary Condi tiorsMesh InterfacesDynamic MeshReference ValuesSolutianSo Li ti on MethodsSclutrori ControlsMonitorsLnitjalizationCalcdatio

42、n ActivitiesRun CalculadonResultsGraphics and AnimationsPlotsReportsSolution InitializationInitializatjon Methods-Hvhrid TnitisliTatinno 5hridard Initialization0 Relative to Cel ZoneAbsoluteInitall ValuesGauge Pressure (pascaJ)01.5e-10Turbd&nt Dissipatiori Rate (m2/s3)2J56208e-13Reset DPM Source

43、s | Reset Statistics(11)选择 run calculation,设置 number of iterations (迭代步)为 500，单击 calculate 开始计 算。Prablem SetupGeneralModelsMaterialsPhas亡5Cell Zone Conditions Boundary Conditions M 亡 sh Interfaces Dynanik: Mesh &亡 ferenoe VaJuesSolutionSolution MethodsSolution 匚ontrols MonitorsSolution nitalijat

44、ion Caiola tion Activiti皀$in CadaihtionResultsGraphics and AnimationsPlots(12 )计算一会后会提示收敛RttldUMtOti07113ft197 6.5ft51ie-ft5 3,8507-0710B 6.5me-66 3.2e-l7白.2fll/?e-06 3.629SE-0/110 白.(M 3.5D!>2e 137Iter cant!nuttyi Jc-uelacity111 5.8ft3?O-« 3,39(-07112 5.7151ie-O6 3«8093f-07113 3*2l53e-

45、6?11B| 5Blk576e-tt6 3.129tle-0J1155.3101le 063-03呂3P 071114-011«-02le«3ie-05佃礦tteraidonsjsnsANEYS FLUENT 14.0 gd, pbr2.9Z99? 072B8Bfle-n7 2.®297e-0? 3.0682p-0? 2! 73*5 e-Uf2.iB21e 072.62?7®-0725923e-07£ S572e-9Z2 »14e-ar2.U399R 0711ft B1U1le-M 2,967f-07 2=387*9?-07117 耶

46、.W40e-« 2.«me-l7 2.I71C4-S7Ml i.V027e-U 2«7me-07 2.30>i5e-0?!11W sol nt ion is ie onuerje d119 U.7We (M ¥.7U3!ie 07 2?2792e 071 .7SB0f M1.6362c-66 1,5M2e-06 仁泗tte-加4,9317?-nft5.12 00?-98 期書附昶-9S 53們烈一OS8e77flftp>-fl4 1,5fiilP-0a &冷仙盹-叭1.50OU-03 9.2199e-OU7B?S33e-U4 1-ayeiae-laa1 47B!ie 06 z-ueljiiclty 1.*3S0t-N1.3871e-e«1 .yjP«ue-0C!1.3B53e-a6DB iBnrqy .60Wt-»S4