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1、第18卷第3期光散射学报Vol18No32006年9月THEJOURNALOFLIGHTSCATTERINGSept2006文章编号:10045929(2006)03026106LightScatteringPropertiesofSootAggregates1231LEIChengxin,LIFengling,LIUCande,ZHANGHuafu(1SchoolofPhysics,ShandongUniversityofTechnology;2Departme
2、ntofPhysics,No1MiddleSchoolofZiChuan;3SchoolofTransportationandVehicleEngineering,ShandongUniversityofTechnology)Abstract:Basedonthefundamentalconceptionoffractal,wesimulatethesootaggregatesconsistingofsphericalprimaryparticlesbycomputerCalculationsareperfor
3、medonthesesphericalparticles,whichsize,refractiveindexvalues,andMorphologyischaracteristicofsootaggregatesinthevisiblewavelengthsThediscretedipoleapproximation(DDA)isusedtosolvethesootaggregatesscatteringproblemInthisarticle,thescatteredsensitivitiesoffractal
4、-likesootaggregatesarediscussedKeywords:lightscattering;sootaggregates;fractal;discretedipoleapproximation中图法分类号:O43414文献标识码:A煤烟聚集粒子的光散射特性研究1231类成新,李凤灵,刘灿德,张化福(1.山东理工大学物理学院,山东淄博255049;2.山东淄川一中高中物理组,山东淄博255100;3.山东理工大学交通与车辆工程学院,山东淄博255049)摘要:基于分形理论,用计算机模
5、拟了由球形基本粒子构成的煤烟聚集粒子。利用离散偶极子近似方法(DiscreteDipoleApproximation)研究了煤烟聚集粒子的散射特性,讨论了分形煤烟聚集粒子的散射强度随煤烟聚集粒子的分形结构、大小、相对折射率及入射波波长变化情况。关键词:光散射;煤烟聚集粒子;分形;离散偶极子近似方法flamesOntheotherhand,productionofcarbon1IntroductionblackandceramicsaerosolswithspecificsizeandLightscatteringb
6、yaggregatesmallparticlesshapeaswellasfineparticlecontrolintheelecisrelevanttoawidevarietyofapplicationstronicsindustryrequiresreliablemethodsfordeKnowledgeoftheopticalproperties,size,andterminingthephysicalpropertiesoftheparticumorphologyofsootaggregatesisof
7、criticalimporlatesInordertoanalyzetheexperimentaldata,tanceinpollutioncontrol,remoteatmosphericwehavetocalculateorknowthedetailsofsoot-sensing,analysisofradiativeheattransfer,asaggregateshape,structure,size,sizedistribuwellasunderstandingthemechanismofsootfor
8、tion,numberdensityandopticalpropertiesmation,growth,andoxidationincombustionItiswellknownthatindividualsootparticles收稿日期:20051205,修改稿收到日期:20060118261第3期LEI
