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1、東南大學(xué)碩士學(xué)位論文高梯度磁場(chǎng)中磁性可吸入顆粒物動(dòng)力學(xué)特性研究姓名：楊榮清申請(qǐng)學(xué)位級(jí)別：碩士專(zhuān)業(yè)：熱能工程指導(dǎo)教師：吳新20060620東南大學(xué)碩士學(xué)位論文ABSTRACTABSTRACTThepollutionofparticulatematterwithaerodynamicdiameters101tmfPMl0)hasbeenattractingmuchattentionbo也insideoroutsideChinaTheform

2、ationmechanismandthecontr01techniquesofPMlOfromcombustionarebeingpaidmuchattentionbymoreandmorescientificresearchersThecombustionoffossilfuelsisthemainresourceofparticulatematterintheairandit’sverynecessarytostudythekine

3、ticcharacteristicofPMl0fromcombustionLotsofresearchesindicatesthatflyashfrompowerplant，whichisthemainpollutionresourcecontainsmuchmagneticmatterPMl0fromotherresourcescontainscertainmagneticmatterTheformationtheoryandcont

4、roltechniquesofPMl0fromcombustionwasbroughtinto‘973Program’byMinistryofScienceandTechnologyofPRChina，andthekineticcharacteristicofPMl0inmagneticfieldwasincludedAtestfacilitywasfoundedinthispapertomakeexperimentalresearch

5、inthecharacteristicofmagneticparticlesinhighgradientmagneticfieldSofarthere’vebeennoexperimentalmethodsfortllevisualizationofthecharacteristicofthemicrocosmicmovementofPMlOCommercialPIVtechniques(TinandDANTECetc1carlnotb

6、euseddirectlyinthistwophaseflowresearchElectricalLowPressureImpactorwasusedintheexperimentofthisPaDertomeasurethenumberconcentrationoftheparticleswithoutandwithmagneticfieldandbarattheoutletofthepassage，respectivelyFurth

7、ermore，theinfluenceofaerosolflux，magneticfluxofappliedmagnericfield，thesaturatedmagnetizationandthediameterofferromagneticwires，andthenumberoftherOWSofthebarweretakenintoaccountwhenanalyzingthemovementoft1eparticlesinhi曲

8、gradientmagneticfieldTheresultsindicatedthatdecreasingaerosolflux，improvingappliedmagneticflux，usingwireswhichhavehighersaturatedmagnetization，reducingthediametersofthewiresandincreasingthenumberofthebarwmimprovethecaptu

9、recapabilltyofthebarswhichhaveferromagneticwiresThesoftwareFemlabcalledasmultiplephysicsfieldcouplinganalysiswasusedinthisPaDertoanaIyzethemovementcharacteristicoftheferromagneticparticlesintheexperimentalsectionthrought

10、hemathematicalmodel，whichwasalsodeducedinthePaDerComputingmeshwasgenemtedbythesoftware，andunstructuredtriangularmeshwasutilizedhereLagrange—QuadraticmethodandLagrange—P：P1wereusedwhencalculatingthestaticmagneticfieldandf

11、luidfield，respectivelyVisualizationofthemagneticfield，fluidfield，particlefieldwascarriedoutaccordingtothenumericalsimulaCionAnditmadeuptheshortageoftheexperimentinsomesenseMeanwhile，qualitativeandquantitativeanalysiswasa

12、lsomadetofindthattheresultsfrombothmathematicalsimulationandexperimentaccordedwitheachotherintendencyKEYWORDS：MagneticparticulatematterHighgradientmagneticfield，Numericalsimulation，Two—phaseflowElectricalLowPressureImpac

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