SEDIMENTATION OF CIRCULAR PARTICLES IN OLDROYD-B FLUID

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    摘要 ThesedimentationofcircularparticlesinaverticalchannelfilledwithOldroyd-BfluidwasstudiedbyanimprovedDistributedLagrangeMultiplier/fictitiousdomain(DLM)method.Thesedimentingbehaviorsoftwoparticlesarepresentedfirstly,whichshowsthat,whentheparticlesaredroppedinaviscoealsticfluid,thestableconfigurationistheonewheretheparticlesarealignedparalleltotheflowdirectionwhentheMachnumberMislessthan1andtheelasticitynumberEisgreaterthan1.ThisagreeswellwiththeknownexperimentalinRef.[1]andsimulationresultsinRef.[2].Oursimulationsalsoshowthat,asinNewtonianfluid,thesedimentationoftheparticleswillbeacceleratedduetotheinteractionbetweenparticlesinaviscoealsticfluid.
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    出版日期 2004年03月13日(中国Betway体育网页登陆平台首次上网日期,不代表论文的发表时间)
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