旋转离心喷雾气液错流传热计算

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13119992JournalofChemicalEngineeringofChineseUniversitiesNo11Vol113Feb119991997209222,1998208226:,,43,33(,,510641),1,,[1],,,,1Fig11Schemeofcoordinateofrotatingspraying21,,virvi,:vi=vi2+vir2(1),[2]vrm=2r2/3vL(2)=3vLVL2r2n21/3(3),vivir:vivir=122n2vLVL2Ri21/3(4)=tg-1vivir(5)'1994-2009ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.=-mdvLdt(6)A=d24(7)m=Ld36(8)[3]d=C1VL+C2(9)C1=01232LL(10)C2=8181410-3LLL0145(1000«)115(11)«=VLVgRo2-Ri22rH(12)(9)(11),:dm;Lkgm-1;VLkgs-1;Lkgm-3;Lkgsm-2t=0,VL=Vi,(6)vLtvL=C1C3+C4t-C2(13)C3=C22+2C1C12vi2+C2vi(14)C4=32C1CD(15)Rec1,[4]CDCD=fRe0133c(16),Rec=vldgg(17),Rec,(6)CDrtr2=t0vLcosdt+Ri2+t0vLsindt2(18)«(r)=Rir2R2i-sin2-cos=2C1C4C3+C4t-C3+C21nC3+C4t-C2C3-C2(19)6©1994-2009ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.(i,j)Gdrw=Hg(i,j-1)Gdrw+Q(i,j)(20)Wg(i,j)+WL(i,j)=Wg(i,j-1)+WL(i-1,j)(21),Q(i,j)=F(i,j)h(i,j)Tm(i,j)(22)Tm(i,j)={[TL(i,j)-tg(i,j)+[TL(i-1,j)-tg(i,j-1)]}2(23)h(i,j)=Nu(i,j)kgd(24)Nu(i,j)=2+016Re1/2cPr1/3L(25)d=[d(i,j)+d(i-1,j)]2(26)vL=[vL(i,j)+vL(i-1,j)]2(27)F(i,j)=6VL(ti-ti-1)ZiHd(28)[5]Ps=Hg(i,j)p[01622+Hg(i,j)](29)tg(i,j)=175012868110765-logPs-235(30)Ig(i,j)=[0124+01461Hg(i,j)]tg(i,j)+59711Hg(i,j)(31)IL(i,j)WL(i,j)+Q=IL(i-1,j)WL(i-1,j)(32)TL(i,j)=IL(i,j)CpL(33),(20)(33)7©1994-2009ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.:411rN,zM,,TL(0,j),tg(i,0),Hg(i,0),,Ri,Ro,H,WL,WgWL(0,j)=HWLCPL(34)Wg(i,0)=(r2i-r2i-1)WgR2O-R2i(35)412vir,d,vi,413ri,«(ri),tiLiCDdi,h(i,j),F(i,j)414h(i,j),F(i,j),Tm(i,j),Q(i,j),Hg(i,j),W(i,j),Wg(i,j),IL(i,j),TL(i,j),tg(i,j)415i=1N,j=1M,,TLm=6Mj=1WL(N,J)TL(N,J)6Mj=1WL(N,J)(36)Hgm=6Ni=1Gd(i)Hg(i,M)6Ni=1Gd(i)(37)Psm=HgmP(01622+Hgm)(38)tgm=175012868110765-logPsm-235(39)3-Fig13Schemeofair2liquidheattransferexperimentalapparatuswithrotatingspraying11213141416312,,,4(011),,,,1%10,10,=304s21,Ri=25mm,8©1994-2009ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.=140mm,H=150mm,n=100,VL=0195m3h21,Vg=1000m3h21,48,2714,2713,,4a4b4a,,Z,Z4b,,r,rvi=vi=716ms21,0115mmRec661738,(16)f010035Z,mm1=142152=127153=112154=97155=8215r,mm1=301752=421253=531754=621265=761756=67157=52158=37159=221510=7156=881257=991758=1111259=12217510=1341254Fig14Temperaturedistributionsofairandwaterintwophasecrossflowandheattransfer4431232,1,1Table1ComparisonofcalculatedvalueswithexperimentalmeasurementresultsVL,m3h21,,,,%01954810043184319-01201854718543154315001754717543124310014601654717043104215112015547150421654216500145471404214411811401354710541184111117012546155411241100149:45,,,,,,,,,9©1994-2009ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.:rw,Jkg21gRI,mmRo,mL111,97212054182MunjalS,DudukovicMP,RamachandranP1ChemicalEngineeringScience,1989,10:224522563LongGE1ChemEng,1978,6:73774,1,,,1988:4235,15,,,,1987CalculationofHeatTransferbetweenGasandLiquidTwoPhaseCrossFlowwithRotatingSprayingDengXianheZhangJianjunChenHaihui(HeatTransferandEnergyConservationPublicLaboftheNationalEducationDepartment,SouthChinaUniversityofTechnology,Guangzhou510641)ABSTRACTThecalculationmethodofheattransferbetweengasandliquidtwophasecrossflowwithrotatingsprayingwasstudied1Thedividepartcalculationmethodwasusedtosimulatetheprocessofheattransferoftwophaseflowinrotatingsprayingareaandcomparedwithexperimentaldata1KeywordsCentrifugalrotatingspraying,Gas-liquidcrossflow,Heattransfercalculatio01©1994-2009ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.

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