层流预混火焰的数学模型及数值计算

:1004-9762(1999)01-0021-04王　波1,张捷宇1,贺友多2(1.,014010;2.,014010):;;:TF066.1:A:,,..,,.StudyonthemathematicalmodelandnumericalcalculationoflaminarpremixedflameWANGBo1,ZHANGJie-yu1,HEYou-duo2(1.DepartmentofMetallurgicalandChemicalEngineering,UISTBaotou,Baotou014010,China;2.InstituteofMetallurgicalEngineering,UISTBaotou,Baotou014010,China)Keywords:permixedflame;complexkineticsreaction;combustiondevicesAbstract:Complexkineticsreactionmodelisusedforlaminarpremixedflameandforpredictingthedistributingoftempera-tureand/orpollutantformationeventswhichoccurinawidevarietyofexperimentalandpracticalcombustiondevices.Therealisticcombustionpatternisstudiedbythemathematicalmodelwithcomplexkineticsreaction.Itisfoundthatbythismethodtheexperimentalflamedatacanbeexplainedexactlyanditisanadvantagetodesignthecombustiondevices..,,,,,.,,.,,,,,.,13.,,,.14.,,,,19993181March,1999JournalofBaotouUniversityofIronandSteelTechnologyVol.18,No.1:1998-12-10:(95-03-42):(1974-),,,..1.1:u=m;(1):p=const;(2):mdhds=AQ-dds(AJihi+AKdTds);(3):mdYds=AWi-d(AJi)ds,(4),Wi;Ji;Q;iJihi+KdTds.(3),(4):ms=s(s)+S.(5)1.257S.N,n,Ni=1rinBiNi=1pinBi,,B,Wi:Wi=Min(pin-rin)Rn,(6)Rn1,5,:Rn=kfnexp(rinlnpi)-exp(pinlnpi-lnKpn)ivTinpiL,(7),v,L=1,,L=0,.kfn,6:kfn=aTbexp(-ERT),,.Newton-Raphson,.1.36,Q.,,Q,,,,.Q=-4KPT4,(8),KPPlanck,;Stefan-Boltzman.PlanckKP=pixiKPi.(9)2,4.,Newton-Raphson6.,.2.17,8,.:,.,,Newton-Raphson.Newton-Raphsonnj=1fLxjxj=-fL,(10),fL;xj,xlnpilnpMlnT.:lnpi=j((lnpi)fj)(-fj).(11),,:(1),;(2),;(3),,,;(4),;(5);(6),.,.22199931812.2-4,.-.-i,c=i,p+(i0j)(0j,c-j,p),(12),p,c.,,,,.:(1),,;(2),;(3),,;(4),;(5),.,,Fortran,.3.9.1%,298K,(Le=/cD)1,,,.(14).1Fig.1Temperatureshiftingcurve2Fig.2Massicenthalpyshiftingcurve3Fig.3Distributionofspeciesconcentration4Fig.4Distributionofspeciesconcentration23:1.1,,.2.2,,,;,,.,,37,16.3,4,CH4,O2,CO2,H2O,(:N2,H2,CO),CH4+O2CO2+H2O,,.,,,.4,,(),,,.1.M.:,1992.2KennethKKuo.M.,.:,1992.3,,.M.:,1989.4KendllRM,KellyJT,LanierWS.Predictionsofpremixedlaminarflatflamekinetics-includingtheef-fectsofdiffusionA.EPA.Proceedingofthesta-tionarysourcecombustionsymposium,VI.funda-mentalresearch,environmentalprotectiontechnologyseriesC.America:EPA,1976.1-48.5MichaelF,WangHai,MartinJR.Optimizationandanalysisoflargechemicalkineticmechanismsusingthesolutionmappingmmethod-combustionofmethaneJ.ProgEnergyCombustSci,1992,18:47-73.6,.M.:,1992.7GiovangigliV,SmookeMD.ExtinctionofstrainedpremixedlaminarflameswithcomplexchemistryJ.CombustSciandTech,1987,53:23-49.8GiovangigliV,SmookeMD.Applicationofcontinua-tionmethodstoplanepremixedlaminarflameJ.CombustSciTech,1992,87:241-256.-,,,-,,8,,,,,-,,,,:,()2419993181