1、東南大學(xué)碩士學(xué)位論文細(xì)長顆粒（葉絲）流化運(yùn)動(dòng)的數(shù)值模擬及實(shí)驗(yàn)研究姓名：徐大勇申請學(xué)位級(jí)別：碩士專業(yè)：熱能工程指導(dǎo)教師：袁竹林20080108AbstractPneumaticdryingwhichacts勰acontinuousefficientdrymethodofsolidfluidizationhasbeenappliedwidelyinthetobaccoprocessingrherougIresearchonpneumatic

2、dryingprincipleanditsapplicationtechnologyintobaccoprocessingⅢoptimizethetechnologicalparameterofdryingtobaccoandimproveanddevelopthenewtobaccodryingequipmentsanddisplaythesuperiorityofpneumaticdryingintobaccoprocessingt

3、oenhancethequalityofcigaretteproductsTwophaseflowincludingslenderparticlesisadifficultprobleminthemulti—phaseflowresearchwhichithasanimportantacademicvaluetostudyMeanwhileflowalsohasthewidespreadapplicationbackgroundThet

4、wophaseflowincludingslenderpaniclesisextremelyeonlnlonintheactualproductionprocessButitstheoryisnotperfectsoit扭necessarytodosomeresearchoniLAccordingtothespecialshapeofthecuttobaccowehavefoundedanEulerLagrangemethodwhich

5、issuitabletotheslenderparticlesflowingintheflowfieldandsimulatedthemotionoftheslenderparticlesflowingintheflowfieldwhichprepareforresearchonthecuttobaccobyusingnumericalsimulationandsolvingtheproblemsduringtobaccodryingp

6、rocessInordertot∞flflrnlthevaluesimulation∞sult，wedesignedinstalledanddebuggedacoldconditionlaboratorybenchwhichwasreasonableandperformedwellWe啪watchthemotionofcuttobaccoinsideclearlyIthassimulatedtheaetualproductionsitu

7、ationinthecertaindegreenecaseisadjustable，andtheoperationissimple，andthedatacallbemeasuredeasilyquicklyandaccuratelyByexperimentswecallfoundoutthelt‰sonsforthewetclustersappeadngindryingprocessWesimulatedthemotionoftheco

8、ttobaccomovingexperimentalfacilitybyusingEulermodelWedosomefortherresearchoilthelⅨlSOusforthewetclustersandinthisfoundationweposedseveralfeasiblestrategiesforsolvingtheproblemWehavedrawnseveralconclusionswhichareasfollow

9、s：iAnEulerLagrangemodelforthegassolidtwophaseflowincludingslenderparticleswasfotmdedThemodelwasfoundedbydividingtheslenderparticleintomeshonthebaseofrigiddvnamicsandkinematicsThesimulationresultshowedthatthemodelcouldsim

10、ulatetheslenderparticlesbett％2TheorientationdistributionanditsinfluencingfactorswerediscoveredWefoundthattheinclinationsbetwe∞75to90degreeareintheascendantsoit11]ableconcludethatupagItstateisthestablestateoftheslenderpar

11、ticle3Bvusingthecombinationofexperimentandnnmericalsimulationwehavefoundthereasousforthewetclusterandtheareaswheretheyap眥Muchcuttobaccobacklogattheinletoftobaccowhichcausesthewetclustersanditalsocausesthebathtypefeedwhic

12、hmakethefluxunsteadyAtthesametimeclustersappearinthecollletsofthepipewhichaffecttl坨eq刪時(shí)0fdryingandreducetheproductquality4Bycarryingonthesuitabletransformationtotheinstallmentwetclustersattheoutletareeliminatedwhichenhan