简介：Formulatedaresimplemodelsfortheflowinliquidfilm,formedbyimpingingjet,andatwo-phasedownwardflowinpipe.Themodelsarebasedonsimplifiedequationsofmass,momentumandenergy.thesolutionofsuchconservationequationsmayhaveregularpointsbelongingtooneintegralcurveonlyaswellasturningpointscanbefoundamongstthem.Whichrefertoextremevaluesintheappropriateco-ordinatesystem.Thesolutionscanalsohavesingularpointsbelongingtononeormorethanoneintegralcurve,Boththeturningandsingularpointshaveaclearphysicalmeaning.Theycouldbelinkedtocriticalflowconditionsinthepipeflowortotheso-calledhydraulicjump.Analogyexistingbetweencriticalconditionsinthepipeandtheflowofliquidfilmsformedbytheliquidjethavebeenshowninthepaper.

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简介：Wepropose,inthispaper,touseseveralmultivariateanalysismethodeandanewkindofvariablestoseparatebetweenfourclassesofeventsproducedatLEP2:theeventswith2jets,3jets,4jetsandthosehavingamoreabundantjettopology(njets,n>4)Neuralnetworkhaveproventhemselvestobemoreefficientclassifierthantheothertechniques.Theefficienciesandpuritiesachievedwiththeoptimizedneuralnetworkareinaverage1to7%higherthanthoseobtaindwiththeothermethods.

简介：Inordertosolvethemagneto-hydrodyna-mics(MHD)problems,itisneccessarytocombineMaxwell'sequationswithfluidmechanicsequations.But,underthefirstorderapproximationthemasspointmotivationequationsandelectromagneticbasiclawsare

简介：Thispaperreportsthatanatmosphericpressuredielectricbarrierdischargeplasmajet,whichusesargonorargon+hydrogenperoxidevapourastheworkinggas,isdesignedtosterilizethebacillussubtilis.Comparedwiththepureargonplasma,thebacterialinactivationefficacyhasasignificantimprovementwhenhydrogenperoxidevapourisaddedintotheplasmajet.Inordertodeterminewhichfactorsplaythemainroleininactivation,severalmethodsareused,suchasdeterminationofopticalemissionspectra,hightemperaturedryairtreatment,proteinleakagequantification,andscanningelectronmicroscope.Theseresultsindicatethatthepossibleinactivationmechanismsarethesynergisticactionsofchemicallyactivespeciesandchargedspecies.

简介：Inlostpaperofmagneto-hydrodynamicinstabilityanalysisofliquidmetalfreesurfacejetflow(PartⅠ),themagneto-hydrodynamicinstabilitywasanalyzedforthejetflowinatransversenon-uniformmagneticfield,BT.But,asallknown,fortherealconditionsofliquidmetallimiter-divertorplasma-facingcomponentsareintoroidalandpoloidalfields.So,wetrytoanalyzethemagneto-hydrodynamicinstabilityofthejetflow(herebyonlyforcircularshapecrosssectionjetflow)inthezoneofnon-uniformmagneticfields,

简介：运动与在planer的不同集体流动率微粒子狂暴的喷气流动被模仿了，使用LES方法获得流动涡度进化和Lagrangian方法追踪微粒子。结果看了那流动率什么时候是小的，更可能在旋涡圆周介绍的粒子，分发模式类似于流动模式。当流动率高时，一些粒子将在喷气区域逃离运动区域到原来的静态的区域，粒子均匀地相对被散布。流动地什么时候是满的，发展了，在y方向的平均集中由集体流动影响了的粒子稍微评估亲戚，以不同流动率的规范的吝啬的粒子集中类似于Gaussian形状。

简介：ThisArticlepresentsathreedimensionalnumericalmodelinvestigatingthermalperformanceandhydrodynamicsfeaturesoftheconfinedslotjetimpingementusingslurryofNanoEncapsulatedPhaseChangeMaterial(NEPCM)asacoolant.Theslurryiscomposedofwaterasabasefluidandn-octadecaneNEPCMparticleswithmeandiameterof100nmsuspendedinit.AsinglephasefluidapproachisemployedtomodeltheNEPCMslurry.ThethermophysicalpropertiesoftheNEPCMslurryarecomputedusingmodernapproachesbeingproposedrecentlyandgoverningequationsaresolvedwithacommercialFiniteVolumebasedcode.TheeffectsofjetReynoldsnumbervaryingfrom100to600andparticlevolumefractionrangingfrom0%to28%areconsidered.ThecomputedresultsarevalidatedbycomparingNusseltnumbervaluesatstagnationpointwiththepreviouslypublishedresultswithwaterasworkingfluid.ItwasfoundthataddingNEPCMtothebasefluidresultswithconsiderableamountofheattransferenhancement.ThehighestvaluesofheattransfercoefficientsareobservedatH/W=4andC_m=0.28.However,duetothehigherviscosityofslurrycomparedwiththebasefluid,theslurrycanproducedrasticincreaseinpressuredropofthesystemthatincreaseswithNEPCMparticleloadingandjetReynoldsnumber.