沸腾模拟案例.docx

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沸腾模拟案例.docx

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沸腾模拟案例.docx

沸腾模拟案例

沸腾|05案例

 

HeSh

f⅜

Scale.••

CheCk

RePOrtOuality

Display...

Uilits...

SOIVer

TyPeVelOCityFor*ulafltion

•PreSSUre-Based

DenSLtyBaSed

•AbSOIUteRelatiVe

Tiκe

2DSPaCe

•Steady

Planar

TranSient

•AXiSyJTIJn&tric

AXiSyJwnetriCSWiZ:

1

√Gravity|❷

GraVitatiOnaIACCeIeratiOn

⅛:

木例为抽对称模型,・FIUent^求二维栢对称模型的对称抽切他因此指定勃加速度方匂为昉向。

・扌孑定压尢单位为就血

▲设垃压力单位为

注:

后面设毘參考圧力为45aUio

2.2IodOICsM

ΦMOdeIS

金MUltiPhaSe(Off)

(DEnergy(On)

_Viscous(SSTIEdit...

yOn

Off

■RadiatiOn(Off

"・HeatEXChang

⅛SPeCieS(Off)

*PDiSCretePhaSe(Off)

■采用RealiabIek-eDsilon湍流樟塑

ΦMOdeIS

QMUltiPhaSe(Off)(DEnergy(On)

ViSCOUS(ReaIiZablek-elStandardWallFn)

2.3NateriaIS设置

■从材*■!

■数据库中添加材糾Water-I.i(rxici(h2o

^

密宸o

POint1

473.15

934.7

Point2

543.15

770.6

如下囹所示。

QPieCewiSe-IJnearPrOfiIe

DataPointJr

POirt

2:

TemPeratUreOC)

543.15

VaIUe(k<∕≡3)(770.6!

▲设蓋密度

B指定CP参数为PieCeWiSe-IineaI,数揚妇下衣所示

胁00

CP(jΛιk)

POint1

473.15

4494

point2

543.15

5067

 

■指定ThgmmlCor.ductivity^⅛5√⅛piθcθwiSe-Iinoar,数据如下表所乔

⅛^(k)

k)

POint1

473.15

0.∞4

Doint2

543.15

0.5928

 

■⅜f1tViscosit'PLeCeWiSe-IinearS埶抿如下表阡77:

⅛Jg(k)

敬(kg∕np)

point1

473.15

1.339o-4

POint2

543.15

9.995e-5

•设墨芫毕后的材料对话框如下囹所示

I]MiICriβ¾

vaner-Uςu^∣1

*lgd

<*K∙*⅜r∙lCΓλγwi1«

FkUfJtFIgdRvteciaU

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Y∙trri⅜l

Or(IeIlate:

IaISby

•JMft

Cλ∙λxcm1Foxa.ul・

CP(⅛cuiTAtXc∙l)(jΛg⅛)

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CIot

▲枳料设豈对活IS

 

2∙4询斗郭lxs

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fluid

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:

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Q

f、

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I

I

MeShMOtiOn□FiXedValUeS

POKOUSZ03C

►IWi

 

•删棹固体区域

■□CeIlZOneCOnditiOnS

♦□FIUid

-□SOlicI

□SOIid(SOIid,id=3、

-□BOUndaryCOnditiOnSEdit∙∙∙

*

Copy...

DeIete

□AXiS

■>:

Inlet

♦E]InternaI

©:

OUtletCOPyTOCliPbOard

:

:

OUtlet(PreSSUre・IrnPortFrOmFile...

~=WallEXPortTOFile...,

三WaII(WalLid=4)

▲删險回体区域

注:

做共艇愕热本来罡没有问题的,但本秦例的卜算网格存在'圈,洗体域固体之同支该釆用i∩tβxface,而呑奏例便用的足崑了面。

这里懒得去改了,Tβ⅛1l固本区:

⅛⅛掉算了。

2.5操作条件

■打开操作条件i殳羞对话AI,扌旨走OPeT介∙HngPreSSIlre>^45atm,matingTeapera∙hιτe^)503k

OPeratingCOnditionS

PreSSUre

OPeratlngPreSSUre(atm)

45❶▼

ReferencePreSSUreLOCatiOXI

X(λ)o▼

Y(λ)o▼

2(n)IoI▼

GraVity

√GraVity

GraVItatlOnaI

ACCeleratLOn

X(λ∕s2)-9.81

■:

Y(J∣√s2)O

Z(j∣√s2)O

BOUSSineSqParaBeterS

OPeratIngTeaperature(k)

(503.15❸

VariabIe-DenSityParaBeterS

SpecifiedOperatingDenSity

 

[cance^i~^[HeIP'∣

√∙CrDZla

2.6设置边界条件

IWinlot⅛S

-如卜图5H不扌淀入口谏偿L∏√s

口VelOCityInlet

loa∙nbιm

Tλ∙rm⅛lF⅜4itiiOnSp∙ri∙v

Γ∣PM

≡υltipk⅜cα

Fot∙nti<1

IlDS

ZOneKajleInlet

ReterenCeFraBeAbSOIUte

VeIOCitySpecificationIethOdM⅜gnιtude,NOrmaltoBOUndIry

SPeCifICatIOnMethOd∑ntensrtyandHydraUIiCDiaMeter

TUrbUIentIntenSity(%)4❸

乂:

CFDZai

CalICeL

HydraUliCDIaMCter(M)O.(∏54❹

 

▲指定inl∙l边界采件

ICaLnCeItIIHeIP|•∙CFDZjlfi•指定温度为473.15b

2xOUtIet^g

•如T囹所示设気皿讪边畀条件

BaCkflOWRefercnceFlaMeAbSOIUte

CaUgdPressure(atJi)Q

PreSSureProfileIUItiPIier[

BaCkfloVDIrOCtICeISPeCIfIeetIOnMothodNOrnaItoBOUndQxry

BaCkfIOVPresnurcSpecificationTotalPressure

PreVentKeVerSeFIOW

AVeraeePreSmreSPfrCIfiCation

TartetHaSSFlOVRate

TUrbUIellCe

SPeCifICatiOnIrthOdTntenSityandHydraUlICDiwiRter

BACZfIOVTUrbUIentIntenffIty(%

BaCkfIoWHydraUIicDidJIetel(JlI0∙0154

 

OK

CFDNiI

 

2.t设首残荐•如下團所示指走连续方程殘差为ILR

EiReMdUeIMOfMtOn

OptlΦQS

IOOO

EqUat1OnS

RGSIdUaI

ContiaUity

velocityy-velocιtyenergykepsilon

Xonx^o:

ChDCkCOχjvc∑ξC∆G5AbsoluteCxxtsxLa

ItOratXOn5toStOrO

 

COnVereenCeConditIOQS・・■

ShowAdvancedOPfiOnf

[Pl0J][1"

•】][R∙lp

⅛CrDZ]≡▲扬定残差

 

2.8初始化并i∣算

-扌运迭代;頑为欧,并求行计身

PseudoTralIsienL七SettingsFIUidTi*eSCale

TImeStePMethOd

TuneSCaIeFactor

AUtOmatiC

1

LengthSCaleMethOd

VerbOSity

COnSerVatIVe

O

 

SOIidTiBeSCale

TijneStepMethOd

TimeSCaleFaCtOX

AUtOjnatiC▼

1H

Para≡Lβters

NUJaberOfIter航ions

RePOrtingEnterVaI

500❶:

1C

PrOfiIeUpdateInterVaI

1:

SOIUtion.ProcessingStatiStiCS

DataSanIPIIngforSteadyStatIStICS

DataFiIeQUantities...

Solution.Advaιnce≡en⅛

▲设羞计窟参割2.9导出岀口数胆将吕口喲据导出为P心m文件并作为•沸牋计算的入口边界。

-刹用菜⅛**File→Vriie→Profile-**打开设茁対话枉

■]⅛j^outlet,幷选择丫eJLocityMagnitUdeXTUrbUIenCeKinetiCEIlergy(k)及TUrbUIent

Dii?

-ipa+ianRsvto(Epjrilon),点击按钮听〈十。

…保存文件1^icμK(i~ou十1α∙f.pτcf

DWritePrOflIe

OPtionS

•DefIneNeWFrOfIIeS

VxiteCurrentIyDefXnedPrOfIl∙ff

■和"PrefiIROPtInnS

IriteMereePrOtlIeS

Valuer[3/99]

l≡sI≡¾

SUrfICtrFιlt∙rT∙x*

VekxityMagnilUdeAx⅛lV^loCityRadialVelocityStreamFUnetionRelativeVeloCityMagnitUdeRelativeAXidlVeICKItyRobtivoR^dulIValoetyMeShX-VeloCityMeShY-VelOCityVelocityAngleVOftfcityNagnitUdeCeIR^nOidSNUmb^rCelCOnVeCtVeCOUrantNUfnt)er

Vxxtc∙∙∙

^CIUscjIIIelPJ

▲≡Hj⅛π½^±的劫堀

3彿腾计算

■利H⅛^⅛FiLefReadfPrOtiLe-i⅛Ii(IUid—oUtiet.Prof

•j丁幵多相流•殓对话匾选择Eulri垃相茨模型

■i⅛t?

Rnlli∏eMndeIJiRPrBoilineMndftl

J½4tlι

Γku*ι

thueliter⅜sti∙ιι

POPllmg>d⅜>c

IOdOI

⅛σberDfEIIerIanPhgS

OM

JOloIOdOlS

V□1λ⅜-OfFIUld

Hixture

InhOnOreaOOuIKOteIS

[∙Evdxian

VPtStam

QMUI6ph0>eMOdel

 

RrtiBeTrMnXitiOnIodelint

2JAlg∙bx∙jcIatttfacialALeaΓ>£ulorx

Kul-I-FluidWFMCdeI

⅜/BOilihe≡∩d*l

IDCDlSCretePMSeNOoeI

BOiIiDCIOdClOPtiCDS

[∙RPlBoillMIbdd]Q

IiCn・7m】\bri.gR⅞aiIinf

Criti:

ftlHeatFlUX

VOllAaOFcactx∙nParaBOtorsFU(BUIMll∙u

EXPIICIt

•T*rlιcit

 

APPly

[cio∙o][Ho】P

3.2指定>M料属性

VIref-II^mc

CUIiCaIFontUli

2Q

Tttλ

m

FIUOllItFIVlXdloτecialβ

VAtar-Iiaiirf∣h2¾

V

Xxxitiz?

UUQe

CKdtfXIalUCIUIV⅛y

•Vme

l.heιu%,aLfuxiu-a

Pι*r∙vι*∙*-l⅛n∙B∣

Fl*eα<>a‰⅞b∙*o∙∙S

Qn∙r-B∙flD∙dDM∙t>∙"...

"(SfwrtfWIUX)(JAC-Ir)

■[c<∣⅝⅜,.Γj∣

Tketr*xlC>cd‰s

Vλβe∙r‰V(⅛√a-β)

Edi⅜.∙•

9M⅞*

P1»*•«#!

*•-l⅜n∙Bf

λσ∕c⅛CLM.CTet‰*CL∙iu

10.1152

S%aadazdSlCKCEu*ιλλlpyl)

Edit...

KJλ⅜∙∙・

533.15

[cħ≡∣vAκ∙at>

[pwAwt,¾I

CJUSV

 

vrt

fl<4kd

Π∙∙∙⅝λλ⅝1F^rv-il⅞

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LXv

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■I

Y)XTUre

ron∙

Oidtxlal∙xi∙ltIy

•Vma

Cλβn⅛c⅛lFczvaIw

MwtAPtlλba*e∙.•

Tdit..

対,7?

CF(Spic;ficWc⅛t∙(j;>(-!

:

Idit..•

<221

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∑dιt.∙.

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V*t.rvMlW

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T⅜r⅛ri*y(⅞f∕ι⅜1)

!

.?

»<-!

Ib

XolectltrWtιφt(⅛^kxol)

1Θ.CJ52

•从材料數据家中添加介质林料阳LXriψιw

 

CCnStftat

ChaUKe/Cfeat∙][^wl⅝t¾|

CIUSe

⅝crICrrrZV.11-rIv)

rm*∙nτt

Idit—

2.mβe⅜07

ħ:

设蛊液相标准狀态焙为6将汽相标准状态恰役蚩为汽化潜熟。

吐凯网境P水的汽化潜热Km

J∕i,传抿.为标准状态忌为1661*18•10002.9898X10rJ∕kmol

•⅛3液态水为主相,水吏T为决相,书錠水荟气校径^b□ilhΛv-dia,如下图所示

QMUtiPhAC«MQdd

TL*⅛w⅛

rλ4∑

:

OX

TeEyiCa9olu.c

FhtSOSttup

g"

ID

vςpcr

water・PrInMfy=MsVaPOf-SecondaryPnaSe

AddPbMe>ol∙t∙Pb

Ph∙∙∙

VBt∙r*vap9∣:

√t≡ιul⅛r

51»(n)

UVIkll

tU∣Λ‰・∙∙

AFι∙Iy

ICIescjJIlr1PJ

 

3.4指定相间作用•妇厂罢所示捋定相间作用力模型

 

n⅛s∙:

PUs∙Int«r»2t2oa

PCnIatigBd⅛x*4I(Cdel

PhxePIIifS

Vatefvφct

Psce

Haat.ll⅛zs.Bα⅛cticαs

IStterf^ei&1Are.

POKCVSetup

DraCCOeffiCient

Coefficient

X^diCxc⅞tion

ιιo*e

I«a£VCWCCλvλ9*λU

 

IOBiVam

GlobalOrtiOT)S

VictualKadSIlBPI&cit

SUrfac?

7er.sιonForCeMCdOIi□c

InteKaetIOnDoaxnD4

APPly

I口皿II・e】PI

-CC巾之道

7OTCCS

→βtU∣Wx,ILtwclijiiU

∑xt

ħau

rh∙>.k

PUsatJnIel∙*1t

‰∣ul∙t.•«*1*!

*»;•Xa

•如图祈示抬定相间传热模型环叫fx411

He>tTrafiSferCoetticieDt

⅛∕>2-k)

v⅜t∙rVallGr

rms-natsh&il・

IUS

TtItrrKMi<»nΓHπλiπTT4

▲治討目间横热橫型

IVVly

∣C1∙8∙[B«lpI

、二CFDJZ道•如建衍示指走相I就质模型为“辽诚

A指定柜间渡质模里

•如下團所示指定饱和温度为533.15k

QBCilingModel

IQterfaCiaIlod∙lCoartant∙Ll(IUId-InterfaCeTran^ferCoeff.

SatUratiOnTeιχ>erature(k)

EVaPOratiOlICOXlcIolISatloiIPrOPOrty

QURnChlngIO(IelCorreCtlOnBUbbIe∙aιtmεIIjleCoetf.

1

COrreCtiWIndel

[CaIIceL](H∙lp]

 

•如图內于捋定界宜面枳处玫模型为ibpH十花“

▲扌铳異面楚建

3.5设首操作条件

PXeSSUre

OPeratIngPreSSUre(at»)

45▼

ReferenCePreSSUreLOCatiOn

X(Joo▼

Y(λ)0I▼

Z(λ)∣oI▼

GraVlty

√GraVity

GraVitatiOIIaIACCeleratiOn

X(m∕s2)-9∙81

YWS2)0

Z(m∕s2)0

BOUSSineSqParaBeters

OPeratingTenperatuιe(k)

503.15]”

VariabIe-DenSityParaLBeterS

OPeratingDenSItyNethOd

ΛiniιιuΛ-p∩ase-averaged▼

QOPeratingCOnditiOnS

[Cance「[Eelp∣

M6设苴边界超1.I⅛5βinle助?

■i殳呂皿1毗边界的MiXtUrW椅如下團祈示口VelocityInlet

ZOneIiaJIePhaSe

inlet・irtiiro

l<*entu*

Th∙rntlKalittion

Sptci∙s

IFN

IUItiPK⅜s∙

FottntitlVDS

SUPerSCnICzInItialGaUgePreSSUre(at»)o

TUrbUIence

SPeCifiCationMethOdKandEFSLlOn

TUrbUIentIlnetlCEnerKyOUtl^tturb-kin^iC-^nerfy

Help∣

乂:

CFDNjaTUrbUIentDiSSiPatiOnRate0utle⅛turb-di^s-rate

 

▲i√Lat入口混曲昭设蚩

HoirentVM

TkarftftlEa<1:

⅜tι∙rYP

DPMIdtLrhaIeP"∙MiJUDS

QVeIOCityinlet

ZCneNaj¾e

InIet

X

Pha50

Vater

・⅛Sinle∙ri⅛^vaτer≠∣≡•指定苴谏劈廿布

VelOCItySPeCifiCatIOlIHethOdMagmtUde,NOrnIItoBOUndary

IteferenCeFraneAbsolute

[CIanct?

]][Help∣

VeIOCityIlaenitUdeOUtIetVolOCity-magnitude

 

▲脂走力尸液t腿度

•设蚩in"电界液相温度为仃3∙15Ir

UVelOCrtyInletX

ZCneNajlePhaSe

M:

CrDZJii

InIetVater

KofftntUm

71wrι>∙l

R∙di∙tion

SFgidIIMBtI⅛

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