简介：Thinfilmsofpolymerblendscomposedofalternatingcopolymer,diblockcopolymerand/orhomopolymerarestudiedusingMonteCarlosimulation.Amultilayermorphologyisobservedinthefilm,thatis,theblendedpolymersassembleintoindividualdomainsarrangedfrominteriortothesurfacesofthefilm.Thecoexistingcomponentsresidingthroughouttheneighboringdomainsinthefilmmakenodistinguishableinterfacebetweenanyneighboringdomains.Bythismeans,itformsaverticalcompositiongradientinthepolymericfilm.Beingdifferentfromlayer-by-layerdepositionofpolyelectrolyteorhydrogenbondingapproachetc.,thelayeredstructureinthisstudyisformedbypolymerblendinginonestep.Alternatingcopolymersarefoundtobeessentialcomponentstoformverticalcompositiongradient(layeredstructure)inthinfilms.

简介：Asimplemodelingapproachwassuggestedtosimulatepreferentialtransportofwaterandcontaminantsinsoil.AftersaturatedhydraulicconductivitywasinterpolatedbymeansofKrigeinterpolationmethodorscalingmethod,andthenzoned,thelocationswheresaturatedhydraulicconductivitywaslargerrepresentedregionswherepreferentialflowoccurred,becauseheterogeneityofsoil,oneofthemechanismsresultinginprefeentialflow,couldbereflectedthroughthedifferenceinsaturatedhydraulicconductivity,Themodelingapproachwasvalidatdthroughnumericalsimulationofcontaminanttansportinatwo-dimensionalhypotheticalsoilprofle.Theresultsofthenumericalsimulationshowedthattheapproachsuggestedinthisstudywasfeasible.

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简介：Tobettersimulatemulti-phaseinteractionsinvolvingfailureevolution,thematerialpointmethod(MPM)hasevolvedforalmosttwentyyears.Recently,aparticle-basedmultiscalesimulationprocedureisbeingdeveloped,withintheframeworkoftheMPM,todescribethedetonationprocessofenergeticnano-compositesfrommoleculartocontinuumlevelsothatamultiscaleequationofstatecouldbeformulated.Inthisletter,amultiscaleMPMisproposedviabothhierarchicalandconcurrentschemestosimulatetheimpactresponsebetweentwomicrorodswithdifferentnanostructures.Preliminaryresultsarepresentedtoillustratethatatransitionregionisnotrequiredbetweendifferentspatialscaleswiththeproposedapproach.

简介：真实波浪是multidirectional波浪。在现在的学习，为为产生multidirectional的开车信号挥动的波浪制造者的计算方法在物理波浪盆组织被建议。它的有效性被事件边界条件被建议方法的使用为决定的一个数字模型首先证实。然后，multidirectional波浪组的物理模拟在实验室波浪盆被执行。multidirectional飘动与的试验性的结果表演期望波浪groupiness，它包括不仅它的组高度而且它的组长度，能令人满意地在物理波浪盆在指定位置被产生。

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简介：预言焊接失真的可能性是广泛的。在工业生产使用的边界条件在选择正确策略起一个重要作用。不仅焊接过程的正确抽象为正确、有用的结果是必要的，夹钳的条件并且预先附加焊接也是很重要的。这篇文章考察实验和工业关联的焊接复杂结构的女性的计算。检验结构来自铁路车辆并且与4公里的表厚度包含u侧面。评论以研究结构的解释开始并且显示出不同焊接状况，象unclamped一样并且生产夹钳。然后，有几焊接缝接的FE模型被解释，使用的边界条件被显示出。最后，测量并且计算的失真被比较并且讨论。

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简介：这份报纸涉及一口跳入的液体喷气的三维的数字模拟。在喷气附近形成一个空气洞的短暂过程，捕获这个大塑造toroidal的水泡的一个开始大的空气水泡，和分散进更小的水泡被分析。一个稳定的有限元素方法(女性)基于适应、未组织的格子在平行数字模拟下面被采用并且结合了一个水平集合方法追踪在空气和液体之间的接口。这些模拟证明液体喷气的惯性开始压抑水池的表面，形成包围液体喷气的一个环形的空气洞。随后在液体水池被形成的一个toroidal液体旋涡导致空气洞倒塌，并且接着乘火车空气进从在液体喷气附近的不稳定的环形的空气差距区域的液体水池。

简介：一条数字途径被执行预言非线性的水波浪的繁殖和转变。数字波浪斜槽被开发基于非周期性高顺序光谱(HOS)方法。斜槽被使用在非线性的波浪的繁殖上分析波浪险峻和波长的效果。结果证明为低险峻的波浪，波浪侧面和波浪精力光谱是稳定的，并且繁殖能被线性波浪理论预言。为中等险峻的波浪和陡峭的波浪，在一个波浪组与在波浪之间的相互作用联系的效果变得重要并且一列火车开始，正弦曲线波浪可以急速地从它的原来的位置在短距离以内改变它的形式。

简介：用高分辨率的非静水力学的模型ARPS(先进地区性的预言系统)，台风Rananim(0414)被使用CINRADDoppler雷达数据模仿。在台风前后的结果乍见陆地证明模型ARPS表现很好模仿轨道，中心压力的变化，以及Rananim的严重大雨。同时，模仿的合成反射率与观察雷达相比是合成反射率。数字结果表明Rananim的不均匀的结构在它向西偏斜在以后起一个重要作用乍见陆地。Rananim(0414)上的地面效果的敏感模拟实验也被调查，并且东南的中国的地面在它的轨道稍微向右转并且显然增加它的紧张的Rananim上有重要效果，但是当台风是远的离开海岸线时，地面仅仅稍微影响暴风雨紧张在期间它的乍见陆地。结果证明地志的上升极大地作出贡献到降水改进，并且使降水的分发更不平。[出版摘要]

简介：TheATLASdetectorisoneofthemostsophisticatedandhugedetectorseverdesigneduptonow.Adetailed,flexibleandcompletesimulationprogramisneededinordertostudythecharacteristicsandpossibleproblemsofsuchachallengingapparatusandtoanswertoallraisingquestionsintermsofphysics,designoptimization,etc.TocopewiththeseneedsweareimplementinganapplicationbasedonthesimulationframeworkFADS/Goofy(FrameworkforATLASDetectorSimulation/Geant4-basedObject-OrientedFolly)intheGeant4environment.Theuser'sspecificcodeimplementationispresentedindetalilsforthedifferentapplicationsimplementeduntilnow,fromthevariouscomponentsoftheATLASspectrometertopsomeparticulartestbeamfacilities,particularemphasisisputindescribingthesimulationoftheMuonSpectrometeranditssubsystemsasatestcasefortheimplementationofthewholedetectorsimulationprogram:theintrinsiccomplexityinthegeometrydescriptionoftheMuonSystemisoneofthemoredemandingproblemsthatarefaced.Themagneticfieldhandling,thephysicsimpactintheeventprocessinginpresenceofbackgroundsfromdifferentsourcesandtheimplementationofdifferentpossiblegenerators(includingPythia)arealsodiscussed.

简介：Aleafinclinationangledistributionmodel,whichisapplicabletosimulateleafinclinationangledistributioninsixheightsoflayeredcanopyatdifferentgrowthstages,wasestablishedbycomponentfactorsaffectingplanttypeinrice.Theaccuracyofthesimulationresultswasvalidatedbymeasuredvaluesfromafieldexperiment.Thecoefficientofdetermination(R2)andtherootmeansquareerror(RMSE)betweenthesimulatedandmeasuredvalueswere0.9472and3.93%,respectively.Thesimulationresultsshowedthatthedistributionofleafinclinationanglesdifferedamongthethreeplanttypes.TheleafinclinationangleswerelargerinthecompactvarietyLiangyoupeijiuwitherectleavesthanintheloosevarietyShanyou63withdroopyleavesandtheintermediatevarietyLiangyouY06.TheleafinclinationanglesweredistributedinthelowerrangeinShanyou63,whichmatchedupwithfieldmeasurements.Thedistributionofleafinclinationanglesinthesamevarietychangedthroughoutthesevengrowthstages.Theleafinclinationanglesenlargedgraduallyfromtransplantingtobooting.Duringthepost-bootingperiod,theleafinclinationangleincreasedinShanyou63andLiangyouY06,butchangedlittleinLiangyoupeijiu.Ateverygrowthstageofeachvariety,canopyleafinclinationangledistributiononthesixheightsofcanopylayerswasvariable.Ascanopyheightincreased,thelayeredleafareaindex(LAI)decreasedinallthethreeplanttypes.However,whiletheleafinclinationanglesshowedlittlechangeinLiangyoupeijiu,theybecamelargerinShanyou63butsmallerinLiangyouY06.Thesimulationresultsusedintheconstructedmodelwereverysimilartotheactualmeasurementvalues.Themodelprovidesamethodforestimatingcanopyleafinclinationangledistributioninriceproduction.

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简介：包括热扩大的痊愈动力学，痊愈收缩，和系数的Prepreg性质被分析。一个模拟方法基于元素出生和有限元素分析(FEA)的死亡方法被介绍模仿切的过程并且预言用机器制造的变丑为合成把压成薄片并且使硬的面板。在模拟结果和试验性的数据之间的比较显示出好同意。剩余压力是为composites用机器制造变丑的主要来源，仅当沿着用机器制造的方向有压力坡度，用机器制造变丑被期望发生，这被发现。为没有用机器制造的变丑合成在飞机由于它的一致压力分发把压成薄片，当用机器制造时，变丑能为T形状显然被观察使硬的合成面板。注意应该对用机器制造变丑在汇编期间避免失配被给予。

简介：Athree-stepfiniteelementmethod(FEM)togetherwithLargeEddySimulation(LES)isap-pliedtoincompressibleturbulentflowaroundseabedpipelinesatrelativelyhighReynoldsnumbers.Bothtwo-dimensionalandthree-dimensionalnumericalsimulationiscarriedouttodeterminethethree-dimensionaleffect.Theresultsofnumericalsimulationagreequitewellwiththewaveforcesactingonpipelinemodelsmeasuredinphysicalmodeltest.

简介：Thisworkpresentsanumericalsimulationoftheflowfieldinaliquidpropellantrocketenginechamberandexitnozzleusingtechniquestoallowtheresultstobetakenasstartingpointsfordesigningthosepropulsivesystems.ThiswasdoneusingaFiniteVolumemethodsimulatingthedifferentflowregineswhichusuallytakeplaceinthosesystems.Astheflowfieldhasregionsrangingfromthelowsubsonictothesupersonicregimes,thenumericalcodeused,initiallydevelopedforcompressibleflowsonly,wasmodifiedtoworkproficientlyinthewholevelocityrange.ItiswellknownthatcodeshavebeendevelopedinCFD,foreithercompressibleofincompressibleflows,thejointtreatmentofbothtogetherbeingcomplexeventoday,giventhesmallnumberofreferencesavailableinthisarea.Hereanexistingcodeforcompressibleflowwasusedandprimitivevariables,thepressure,theCartesiancomponentsofthevelocityandthetemperatureinsteadoftheconservedvariableswereintroducedintheEulerandNavier-Stokesequations.ThiswasdonetopermitthetreatmentatanyMachnumber.Unstructuredmesheswithadaptiverefinementswereemployedhere.Theconvectivetermsweretreatedwithupwindfirstandsecondordermethods.ThenumericalstabilitywaskeptwithartificialdissipationandinthespatialcoverageoneusedafivestageRunge-KuttaschemefortheFluidMechanicsandtheVODE(ValueofOrdinaryDifferentialEquations)schemealongwiththeChemkinIIinthechemicalreactingsolution.Duringthedevelopmentofthiscodesimulatingtheflowinarocketengine,comparisontestsweremadewithseveraldifferenttypesofinternalandexternalflows,atdifferentvelocities,seekingtoestablishtheconfidencelevelofthetechniquesbeingused.ThesecomparisonsweredonewithexistingtheoreticalresultsandwithothercodesalreadyvalidatedandwellacceptedbytheCFDcommunity.

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简介：计划容器处于民用、军事的状况广泛地被使用。由于他们的高速度，计划容器的运动是复杂的。以便预言计划容器的运动，分析以高速度计划容器的水动力学表演是重要的。计算液体动态方法(CFD)被建议了计算计划容器的水动力学性能。在很传统的CFD途径，然而，模型测试或实验公式被需要在计算前获得计划容器的跑的态度。这份报纸论述一个新CFD方法计算计划容器的水动力学力量。数字方法基于平均Reynolds的海军司烧(RANS)方程。液体(VOF)的体积方法和six-degrees-of-freedom方程被使用。一个有效过程被介绍在数字模拟解决数字分叉问题。与试验性的结果相比，数字模拟结果显示跑的态度和水动力学性能能以高速度被预言很好。