FLUENT大作業(yè)-工程流體力學(xué)模板

（一）臥式分離器氣液兩相分離模擬幾何模型的建立首先雙擊woikbenchl4.0圖標(biāo)，進(jìn)入workbench14.0的工作環(huán)境，單擊菜單欄tools-option,在option對(duì)話框中勾選nameselection,并刪除filtermgprefixes文本框屮的文字，以便應(yīng)用于后面的模擬計(jì)算中。在woikbench左側(cè)將fluent拖動(dòng)到右側(cè)工作欄中建立fluent工作椎。□AvlysisisttroMoesionAssesnai図Elcaric(flExplictDynom.CTgjFluidFo叱BlowMolding(SOLYFIOW)?luldF?Extiudon(POLYFLO^；FluidFO^(CFX)g)FluidFlo^(POLif-OW)MHydrodynamic0iffrwifcm鮮HydrodyftamicTirBeRe??^tSKEngm?.mearBtbding飼^laor?K53>rggModaUH*)如(％丁《0MiRandom^bratox圖1-1Fluent工作框雙擊Geomeuy,選擇單位標(biāo)準(zhǔn)“m”，即可進(jìn)入dm操作界面進(jìn)行建模，在x?y平面用draw中的1典分別自坐標(biāo)原點(diǎn)為起始點(diǎn)延X(jué)和y方向繪制一條直線。繪制出氣體出口上端輪廓線和液體出口下端輪廓線：圖1?2繪制好的臥式分離器輪廓H19005mTH211.9ID1M250.05mnvio005mLJY12ONm1V14015mV160.2m□V1801m旦V2O0.1E丨V2201EUV2401m-53圖1.3臥式分離器輪廓參數(shù)

將菜単欄轉(zhuǎn)至modeling,點(diǎn)擊菜單欄卜的concept,選擇其卜surfaceHomsketchs,點(diǎn)擊geneiatet生成平面模型。DetailsofSurfaceSklSurfaceFromSketchesSurfaceSklBaseObjects1SketchOperationAddMaterialOrientWithPlaneNormal?YesThickness(>=0)OmDetailsView-圖1-4detailsview操作界面ANS\14圖1-5生成平面模型點(diǎn)擊線選擇按鈕匝選擇入口直線vlO,然后右鍵選擇namedselection在detailsview下單擊apply,單擊generate,再在treeoutline操作界面下選中namesell右鍵rename,輸入inlet完成對(duì)入口的定義。a金IA:FluidRow(FLUENT)申XYPWQSkctchlKZXPhneYZManeSSurfaceSU^GZHSHTtWe丄金兩V)Generate.癌A：FluidFlow(FLLENT)曰XVPlareSketehl；?…必ZXPIane:?…"qg￡/後SuroceSkl'?,卷 ?^^Tp7rt.lBody圖1-6treeoutline界面圖1-7定義入口名稱(chēng)圖1-6treeoutline界面用同樣的方法設(shè)置上下端出口，將上端出口設(shè)置為omletl下端出口沒(méi)置為outlet2；最后設(shè)置壁面wallo

TrecOutlineFI?如1也A;FluidFlow(FLUENTl印XYPlaneiL?.c5*Sk^tchi；ZX^Iane卜VZPlaneE-VC^SurfaceSkl用inlet:-"會(huì)oudetlroutlet?'用wall由丄Part,1Body圖1-8定義岀II界面和壁面網(wǎng)格劃分在workbench14.0的項(xiàng)目視圖區(qū)中，雙擊mesh,進(jìn)入網(wǎng)格劃分操作界面。在outlme操作界面上單擊mesh按鈕，下方出現(xiàn)detailsofmesh操作界面中設(shè)置參數(shù)，設(shè)置relevancecenter為fine,smoothinghigh.spananglecenter為fine,maxfacesize0.01.maxsize為0.01。單擊generate生成。6)1Project蟲(chóng)Hodel(A3|身,?頂GeometryEH金harrecSelections圖1-9outline操作界面--.■;-6)1Project蟲(chóng)Hodel(A3|身,?頂GeometryEH金harrecSelections圖1-9outline操作界面--.■;-De曰De^ultsFPhysicsPreferencei... lr二CFD1SolverPreferenceFluentRelevance! Il.LOO□UseAdvancedSizeFurction5On:Curvatt<eRelevanceCenter [nitiolSizeSeedActiveAssemblySmoothingHighSpanAngleCenterfineCurvatureNormalAngleOcfwlt0。？MinSizeOfault(22427^-OCUmJ■MaxFaceSize|Le-002m JMaxSizeLe002mZ]Growth3aU腿f(wàn)ault!110)MinimumEdgeLength5eOO2m ▼圖1-10detailsofmesh操作界而AN圖1-11網(wǎng)格劃分結(jié)果單擊file-export保存文件，単擊file-closemeshing,安全退出。在workbench項(xiàng)目視圖區(qū)選中mesh.右鍵選擇update。模型計(jì)算設(shè)置及流場(chǎng)仿真在workbench中雙擊setup,出現(xiàn)fluentlauncher對(duì)話框,按OK進(jìn)入模型計(jì)算設(shè)置的操作界面。査看兒何區(qū)域所在范圍并Check檢査網(wǎng)格，當(dāng)下方出現(xiàn)done時(shí)便可確定網(wǎng)格劃分沒(méi)有問(wèn)題。

DorwinExtents:x-coordinat*:rain<m)--602,reaxy-coordinate:rain(m)--1.0DOOOOe-01,imxUolurwstatistics:MnlmtifimaximumtotalFaceareaninimureiiaximuraCheckingwsh Done.uoiume(n3)t?.3M?>K2e-r>volume(n?):1.?51502e-軌volume(n3):1.B3?i591c*O6statistics:faceareaDorwinExtents:x-coordinat*:rain<m)--602,reaxy-coordinate:rain(m)--1.0DOOOOe-01,imxUolurwstatistics:MnlmtifimaximumtotalFaceareaninimureiiaximuraCheckingwsh Done.uoiume(n3)t?.3M?>K2e-r>volume(n?):1.?51502e-軌volume(n3):1.B3?i591c*O6statistics:facearea(r2):H.98689iie-83factarea(m2);1.h17h73e-02Interrupting??.Donp.圖1-12(?)-2.06567X，l1li(r)巨6.0OOOO6e-01網(wǎng)格檢查結(jié)果GravitationalAccelerationI?Z(m/s2)|q ==]丨l 叫圖1-13Gavity界面單擊models,雙擊打開(kāi)多相流multiphase模型，選擇vof模型，設(shè)置相數(shù)為2,單擊OK。KooerrbecjpGenealMaterialPhasesCellZogCondtcnsBccndar/CondiiiorflMeehIntofacecDynancMeshReferenceValues3頓SdutonMethodsSolutionControteMonitorsSdutonImtjalcatonCalojationActvitesRunCalcuationxnerov?DffVtsccusxnerov?DffVtsccus-Lanmor頓iMcnOPH^atEYd^ar^w-OffSpecks-offDstrerePhaseO午Soldfkaton&r^lwg-Offocs-off聞1-14models界面圖1-15multiphase模型界面雙擊viscousmodel設(shè)置湍流模型為標(biāo)準(zhǔn)K-e模型，單擊?OK。Atuprygp隆MMd,Ph3calzereconduszliojidjryCo*drtons—hIrterttCMDyndHCMesrRefcrcncc/alx?SoLfionJoufcrhHho*SoutfciiCur!tookMeltersSouterInitelzotbn「如attonArtAirs2CMUlaEModelsXesJtsPbM心0”圖1-16models界面圖1-17viscousmodel單擊mateiials,選中fluid,單擊edit,在cieate/editmaterial對(duì)話框中單擊fluentdatabase,選擇water-liquid，單擊copy及close,在phase操作界面下選中phase-1-primaiyphase?單擊edit按鈕，進(jìn)一步新的對(duì)話框中將name設(shè)置為water,phasemateiial選為watei-liquid,單擊OK。同樣選中phase-2-pnmaryphase,單擊edit按鈕，進(jìn)一步新的對(duì)話框中將name設(shè)置為an,phasematerial選為air,單擊OK。MAtrriAKResults圖gerSwwraiMooeBSdutorSduttonMethocteMorirarsAuiisln遍SisCdw加gAORWfRsCakUato^PlotsRetro心Phwg312mEcu-daryCcnatcraStetozesmaterial選為air,單擊OK。MAtrriAKResults圖gerSwwraiMooeBSdutorSduttonMethocteMorirarsAuiisln遍SisCdw加gAORWfRsCakUato^PlotsRetro心Phwg312mEcu-daryCcnatcraStetozesD>namcMetfiRHcrence圖1-20fluentdatabase界面ipse圖1-21定義第?相為waterM?ec"15QrdboakiiZ.vrcrdimMerfiMty^cr?Arm*5gggfl5cU?i^tf?xfeScAMiJtrobMMYt^bislooActr^KsUiMiMcmMSiftt*03*?wnssure"b:F.e*c*eneeegfd/is土步ULASCorM：RtR遂gnumnaUrsMOK圖1-22定義第二相為air在boiuidaiyconditions中選中inlet,進(jìn)口設(shè)置為速度進(jìn)口，phase為imxtuie,編輯進(jìn)門(mén)速度為hn/s,湍流強(qiáng)度為1%,水力直徑為0.05m，單擊0K°ProMenSeicGeneral附ddsPhamCellZore(ordtansBoundaryConditionsoucteuoutlet?.8ProMenSeicGeneral附ddsPhamCellZore(ordtansBoundaryConditionsoucteuoutlet?.8MeshTHerfK?OynwcMcshReferencezuegSoLtonSdubor*:kxfcSoiutJorCmtrdsMarttorsSdubcrInib4BiMtbnCaigQnEE5C心atbnResJHGtaohraancArirato"sPlotsRepotsSPY.］戶(hù)頂52...CperatnqCcndtians...DWayhtesh...^圖1-24velocityinlet界面圖圖1-24velocityinlet界面選中inlet,將phase改為an?，設(shè)置multiphase中體積分?jǐn)?shù)為0.4。圖1-25設(shè)置inlet體枳分?jǐn)?shù)同樣設(shè)置outlet2湍流強(qiáng)度為1%,水力直徑為0.05o設(shè)置multiphase中體積分?jǐn)?shù)為0。圖圖1-353s時(shí)的相圖圖圖1-32monitors界面圖1-28pressureoutlet2界面圖1-29設(shè)置outlet2體積分?jǐn)?shù)MDflMC?lZvwCondeona*e*C<erceControlMonitor圖1-28pressureoutlet2界面圖1-29設(shè)置outlet2體積分?jǐn)?shù)MDflMC?lZvwCondeona*e*C<erceControlMonitorlnmaA".D?iMzutottonR.3GdOhca?nd4nma0on>SolutionMrthods圖1-30solutionmethods界面圖1-31SnhiHonInMinlirntofi選中solutionmethods?單擊scheme下拉菜單，選中piso模型，其他值默認(rèn)。單擊solutioninitialization,初始化方法選用standardinitialization,computefrom設(shè)置為all-zones,單擊initializez設(shè)置為all-zones方式初始化単.擊moiutois,設(shè)置殘差精度為默認(rèn)值，単?擊OK

在solutionmethods面板中，單擊patch按鈕，彈出patch對(duì)話框，在phase下拉菜單中選中an,在variable中選中volumefiaction,在value中輸入數(shù)值1,并在zonestopatch中選中suifacebody,單擊patch按鈕。圖1-33patch圖1-33patch界面運(yùn)行計(jì)算，設(shè)置nincalculation,輸入tunestepsize為0.01s,迭代步數(shù)為300步，點(diǎn)擊calculate計(jì)算。殘差曲線如圖。I0UIU32心21Z4If157lent3n5 AN?Jan18.2016AWSYSFLUB4T140(2d,pbns.5ske,trg^nljSc^edResidualsiT,me-3.DOOOe*OQ)圖134殘差曲線圖點(diǎn)擊giaphicsandanimations,在giaphics中選擇contors,單擊setup,彈出coutouis點(diǎn)擊giaphicsandanimations,框,選擇phase和filed，然后単.擊display即可得到3s時(shí)的相圖。RS缺01細(xì)斯細(xì)斯PUJF?Rea心4Meeof恤hrrefraction 叩旺?0印在contoius對(duì)話框，選擇pressuie和filed,然后單擊display即可得到3s時(shí)的壓力云圖□Contours.心也gI35t??^)?iriiDuraofBtalicPreparecmi^urf*}g￡rWEma?OOCtk-iOO)ANSTBFLUvail(air)?!?5心3，MX：01D^9am?2,Z2I*03-fContours.心也gI35t??^)?iriiDuraofBtalicPreparecmi^urf*}g￡rWEma?OOCtk-iOO)ANSTBFLUvail(air)?!?5心3，MX：01D^9am?2,Z2I*03-fMmOS526?)e*w6?og?enm?i?7*|7|F?ed|y|>todeValuMV1WMR@”e1/1AutoRanoelOvtoRar^rIgmgeIDrMeshSg

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■iA—::15=1圖1-363s時(shí)的壓力云圖在contoius對(duì)話框，選擇velodty和filed,然后單擊display即可得到3s時(shí)的速度云圖。mJ.-oue三=lx、wC”"yMVew■“，為Mh」d2(mifitc(ml/iTrrtfs3OfDQe?fMr^?5l.mJ.-oue三=lx、wC”"yMVew■“，為Mh」d2(mifitc(ml/iTrrtfs3OfDQe?fMr^?5l.，7]昌ContoursJF1UJNodevaU?,^cedRjrgc/AutoRzrweC由toR?KMU*七拒!2>e?otyMBGrftj(feMWvimvail(air)?uii取gFU圖1-373s時(shí)的速度云圖迭代步數(shù)為100步，點(diǎn)擊calculate計(jì)算.得到4s時(shí)的殘差曲線圖:圖1-384s時(shí)的殘差曲線圖點(diǎn)擊graphicsandanimations,在graphics中選擇contors,單擊setup,彈出contours對(duì)話框，選擇phase和filed,然后單擊display即可得到4s時(shí)的相圖。

在contours對(duì)話框，選擇pressure和filed,然后單擊display即可得到4s時(shí)的圧力云圖。矣CortcMn/F?d/sss□ptotv'QeSt—4.4M：匚St—4.4M：■=1cf￡UUtPresvjfw^nlOjw；> CTme-<COOOe*CC^圖104s時(shí)的壓力云圖在contours對(duì)話框，選擇velocity和filed.然后單擊display即i」J得到4s時(shí)的速度云圖。/FSJHxkVaLrfl/丫笑，LSoto8^rt>

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_Oe頑*?gxe±WOAr~gr^8^a^ns：>3n.WMhlW*Tg^Dfitoirti4Vtflu(iNW^jnrtjikIiirtrMi:rnft>(Tm".411(100^*00)1IUC1”，s55!3.小<MtHI(l-l□圖1-114s時(shí)的速度厶圖結(jié)論:3s時(shí)的結(jié)果與4s時(shí)的結(jié)果有了明顯的變化。4s時(shí)進(jìn)口附近的液相趨于消失，且整個(gè)液相內(nèi)的氣泡數(shù)量有了明顯的減少，說(shuō)明臥式分離器中的氣液兩相分離工作進(jìn)一步完成，旦容器內(nèi)壓力正在降低。

（二）彎管模型分析1JL何模型的建立畫(huà)兩條線，倒圓角并設(shè)定圓角半徑為20,在Y-z面畫(huà)直徑為lOinin的圓，選擇sweep,profile選yz面下的sketch?，path選xy面下的sketch1,單擊generate,這樣模型就建好了。2.網(wǎng)格劃分創(chuàng)建method,點(diǎn)擊mesh-insen-method用掃描的方式創(chuàng)建:stallsof"SwoopMethod"MethodScopeScopingMethod?GeometrySelection\GeuriietiyIBody1Drflnitlcn1BlIcsuppressedMethodNOSweepElememMidsideNodesUseGlobalSettingSrc/TrgSelectionMonuolSourceandTorgctSource1FaceTarget1FaceFreeFaceMehTypeQuod/Tri1頒NumberofDivisions SweepNumDivsDefaultSweepOia>TypeNoBis1ElementOptionSolid圖2-2mesh-uisen-method界面在size界面劃分圓面上的網(wǎng)格，采用四面體方式劃分，并預(yù)覽劃分結(jié)果:Detailsof"FaceSiring"-Siringp曰ScopeDetaIsof"PatchConfor^ninQh/ethod"?MethodaGeotner>2U—■ J WWl1iFaceEScopeHOfinitionSopngMethodGeometrySelectionSupposed N。GeometryiscdyTypeEementSize-DHinitionEIcnieMSize le-003mSoppy，xdNoBehaviorSoftMethod1TetrahedronsCurvatureNormalAngleDefaultAlgorithmPatchConferrringGrovvtnRateDefaulttlementr/idsldebodesuseGlobalbening圖2-3size界面圖24設(shè)置四而體方式劃分方式SCrr圖2SCrr圖2?5網(wǎng)格劃分結(jié)果從圖可看出劃分結(jié)果的質(zhì)量較好，故繼續(xù)建立邊界層，點(diǎn)擊uiflation并對(duì)邊界面的命名,分別命名進(jìn)口和出口以及壁面，最后updateOSelectionName圖2.6定義進(jìn)II面 ?圖2-7定義出II面 SelectionNameSelectionName圖2.6定義進(jìn)II面 ?圖2-7定義出II面 SelectionName圖2.8定義壁面060X753.模型計(jì)算設(shè)置及流場(chǎng)仿真打開(kāi)setup進(jìn)行計(jì)算，設(shè)置models：MtdelsCe^Zar^C^m2555

iMe^swCMWW：Jg\?g代xeg?SMjnnUntrot*tT*>T^UkH,!n心，5CatitemrArtMtw?MtdelsCe^Zar^C^m2555

iMe^swCMWW：Jg\?g代xeg?SMjnnUntrot*tT*>T^UkH,!n心，5CatitemrArtMtw?C^oMrEeccutsGAgm&gkrnPtotiftewittf5&Mjt^WQF-OfT&xon-CffCtxreteR*?e?OflACD^to-OffBjtrswagtnfOH圖2?9velocitymodels界面圖2-10materials和fluentdatabase界面1^12-11creare/editmaterial界而設(shè)置進(jìn)口邊界條件:設(shè)置進(jìn)口邊界條件:ProsimSenpGeneralMaUriat32cneCord5s