简介：现在的学习考虑发展混合被开始二条免费溪流合并形成的层由一个裂解槽盘子分开了。在粒子分散上调查旋涡的结构的影响，当时，数字模拟被进行速度比率，定义为R=U_∞-U_(-∞)/U_∞+U_(-∞),是0。5。大旋涡的模拟(LES)被采用理解大规模旋涡的结构的效果在质点分散上由theKelvin-Helmholtz不稳定性发源。有粒子的苍蝇灰缩放10，50,100，150，并且200um分别地在二维的混合层的起源被装载。Itis证实粒子分散强烈取决于大规模旋涡的结构的运动。粒子分散被在经历配对相互作用的混合的层跟随粒子轨道数字地设想。

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简介：Thestudyofnano-andsubmicronBrownianparticle-ladenturbulentflowhaswideindustrialapplicabilityandhencehasreceivedmuchattention.Thepurposeofthepresentpaperistoprovideandreviewsomeresearchesinthisfield.Thetopicsarerelatedtotheuniversality,particularity,complexityandimportanceofnano-andsubmicronBrownianparticle-ladenturbulentflow,themodelsofparticlegeneraldynamicalequation,thecollisionbehaviorofparticles.Finally,severalopenresearchissuesareidentified.

简介：Themomentumequationforsolid-liquidtwo-phaseflowproposedbyElghobashiandAbou-Arabistakenasthegoverningequationsfortheliquidphase,andtheLagrangiandynamicequationforasphericalparticlemovingintheliquidflowasthebasicequationfortherelativemotionoftheparticleintheliquidphaseinthepaper.Thedynamicsequationforabubbleinsolid-liquidtwophaseflowisproposed,aswellasthesimplifiedequationsundertwoextremeconditionswiththerelationshipbetweenthebubblecollapsecharacteristictimeτC*andparticleresponsetimeτrel*beingτC*>>τrel*andτC*<<τrel*.

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简介：ACFDsimulationisperformedforaparticle-ladenplanarjetflow.TheReynoldsnumberis8300,andtheinitialparticlediameteris1μm.LargeEddySimulation(LES)isemployedtocalculatetheflowfield,andtheTaylor-seriesexpansionmomentmethod(TEMOM)isadoptedtodealwiththebalanceequationofparticlecoagulationandbreakage.Theshear-inducedcoagulationkernel,power-lawbreakagekernelandsymmetricfragmentdistributionfunctionareinvolved.Thepredictionofthedistributionofthemeanstreamwisevelocityofthejetisingoodagreementwithexperimentaldata.Theevolutionofparticlenumberconcentration,volumeconcentration,polydispersity,particlediameterandstandardgeometricdeviationisdiscussedindetail.Theresultsshowthatasthejettravelsdownstream,theparticlenumberconcentrationandvolumeconcentrationdecrease,whiletheirspansbecomewider.Thepolydispersityandparticlediameterareverylargeintheshearlayersattheupstreamandinthecoreofvortexstructuresatthedownstream.Theparticlestandardgeometricdeviationchangeswithintherangeof1.32≤σg≤1.96,andincreasessharplyintheshearlayers.Allvariablesapproachthesteady-stateastimeprogresses.