简介：LatticeBoltzmannmethodisoneofthewidelyusedinmultiphasefluidflow.However,thetwomaindisadvantagesofthismethodaretheinstabilityofnumericalcalculationsduetothelargedensityratiooftwophasesandimpossibilityofthetemperaturedistributiontobefedbackintothevelocitydistributionfunctionwhenthetemperatureissimulated.BasedonthecombinationprescribedbyInamuro,thelargedensityratiotwo-phaseflowmodelandthermalmodelmakesthedensityratioofthemodelsimulationtobeincreasedto2778:1byoptimizingtheinterfacedistributionfunctionoftwo-phasewhichimprovestheaccuracyofdifferentialformat.Thephasetransitiontermisaddedassourcetermintothedistributionfunctioncontrollingtwophaseorderparameterstodescribethetemperatureeffectonthegas-liquidphasetransition.Thelatentheatgeneratedfromthephasechangeisalsoaddedasasourcetermintothetemperaturedistributionfunctionwhichsimulatesthemovementoftheflowunderthecommoncouplingofdensity,velocity,pressureandtemperature.Thedensityandthetemperaturedistributionofsinglebubblearesimulated.Comparisonofthesimulationresultswithexperimentalresultsindicatesagoodagreementpointingouttheeffectivenessoftheimprovedmodel.

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简介：在这篇论文，我们与单体的二种学习一个离开格子蛋白质AB模型，恐水病、吸水、在场一个启发式的伪物理的算法。由精心地在物理世界上模仿光滑的固体的运动，首先，我们为给定的单体链发现低精力的符合构造。随后的离开陷井策略然后被建议被触发一为一种粘住的状况的jump以便从本地最小出来。算法与一些13-55单体为所有序列在三维的AB模型被测试了。在几种情况中，我们更新通常认为的地面状态精力价值。数字结果证明建议方法为发现蛋白质的扎根的状态是很有希望的。

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简介：ThispaperconstructsanewmultiplerelaxationtimelatticeBoltzmannmodelwhichisnotonlyfortheshockedcompressiblefluids,butalsofortheunshockedcompressiblefluids.Tomakethemodelworkforunshockedcompressiblefluids,akeystepistomodifythecollisionoperatorsofenergyfluxsothattheviscouscoefficientinmomentumequationisconsistentwiththatinenergyequationevenintheunshockedsystem.Theunnecessityofthemodificationforsystemsunderstrongshockisanalyzed.Themodel...

简介：Theinterfacialbindingcovalentbonddensity(CBD)andthelocalenvironmentaltotalbondorder(LTBO)oftheNi/Ni3Alinterfacewithdifferentlatticemisfits(δ)werecalculatedbyusingfirst-principlesdiscretevariationXαmethod.ItwasfoundthattheeffectsoflatticemisfitsontheelectronicstructuresofincoherentNi/Ni3Alinterfacewereveryobvious.Ononehand,lessthan-0.6%negativelatticemisfitcanpromotethebindingstrengthofγ/γ′interface.Ontheotherhand,thetotalbondingstrengthofγ/γ′interfacedecreaseswithincreasingδ.Therefore,themagnitudeandsignoflatticemisfitmustbecarefullycontrolledforbalancingthehightemperaturecreepstrengthofNi-basesinglecrystalsuperalloyandthestructuralstabilityofγ/γ′interfacewhenonedesignsanewNi-basesinglecrystalsuperalloy.

简介：Thewatertemperaturestratificationinlargereservoirsmighthaveseriousecologicalandenvironmentalconsequences.Themodelingofthetemperaturedistributionanditshistoryisofgreatimportancebothforstudyingtheunderlyingmechanismsandforcontrollingtheadverseeffects.Todevelopaneffectiveandefficientmethodforsimulationoftemporalandspatialtemperaturevariations,alatticeBoltzmannmethod(LBM)modelfor3-Dthermalbuoyancyflowsisproposedandvalidatedbythetemperaturedatameasuredinamodelreservoir.ThispaperdiscussesimportantaspectsoftheLBManditsturbulencemodel,analyzesthegravitysinkingmechanismofcoldcurrents,anddemonstratesthecomplexityofthetemperatureredistributionprocess.Goodagreementbetweenthesimulatedandmeasuredresultsshowsthatthenewlydevelopedmethodisfeasibleandpowerful,anditwillbeusedforthewatertemperaturepredictioninactualreservoirsinanearfuture.

简介：Acoupledimmersedboundary-latticeBoltzmannmethod(IB-LBM)isintroducedtosolvebiomimeticproblems.ComparedtotheconventionalIB-LBM,thestrictsatisfactionofno-slipboundaryconditionisimplementedinthecurrentmethod.Consequently,thephenomenonofflowpenetrationthatisfrequentlyobservedintheconventionalIB-LBMisfullyprevented,andsubsequentlytheforceontheboundarycanbecalculatedmoreaccurately.Thisfeatureisofimportanceforthesimulationofbiomimeticproblems.Moreover,byapplyingtherelationshipbetweenthevelocitycorrectionandforcingterm,theboundaryforcecanbecalculatedeasily.Severalbiomimeticproblemsarethensimulated.Basedonthegoodagreementbetweenthecurrentresultsandthoseintheliterature,itmaybeconcludedthatthepresentIB-LBMhasthecapabilitytohandlevariousbiomimeticproblems.

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简介：WepresentanewdiscreteintegrablecouplingsystembyusingthematrixLaxpairU,V∈sl(4).AnovelspectralproblemofmodifiedTodalatticesolitonhierarchyisconsidered.Then,anewdiscreteintegrablecouplingequationhierarchyisobtainedthroughthemethodoftheenlargedLaxpair.Finally,weobtaintheHamiltonianstructureoftheintegrablecouplingsystemofthesolitonequationhierarchyusingthematrix-formtraceidentity.ThisdiscreteintegrablecouplingsystemincludesakindofamodifiedTodalatticehierarchy.

简介：周期的安德森模型(PAM)与巡回的电子搬运人，一起的本地电子orbitals相互影响在我们重费米子材料的理解起一个必要作用。由为以碱地球的金属原子模仿Kondo格子模型(KLM)的最近的建议激发了，我们向PAM的模拟采取另一项措施，它在KLM在完全低精力的旋转变化以外包括本地f电子的关键费用/原子价变化。认识到PAM，转变由合适的激光在之间导致了电子激动并且碱地球的金属原子的地面状态(1S03P0)被介绍。这在PAM导致在本地电子和传导电子之间的有效杂交。通常，PAM的苏(N)版本能被我们的建议认识到，它给一个唯一的机会没有复杂性，在现实主义的材料检测large-N物理。在现在的工作，标准的高温度的物理特征[苏(2)]有套住潜力的泛音的PAM被量蒙特卡罗和动态吝啬地的理论分析，在Mott/orbital-selective莫特状态被发现与金属性的状态共存的地方。为近未来的实验的指示被提供。我们期望我们的理论建议并且(希望)即将来临的实验将加深我们重费米子系统的理解。同时，我们希望这些将在两个在相关莫特物理，量criticality，和重要拓扑学上触发进一步的研究不同类并且nonequilibrium领域。

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简介：在多孔的媒介调查传送对流，多孔的媒介从底部加热了的浸透的一液体的水平静止的层数字地用单个lattice-Boltzmann方法(LBM)被学习，概括Navier司烧Nithiarasu等建议的方程。[P。Nithiarasu，K.MSeetharamu，和TSundararajanInt。J。加热集体Trans。40(1997)3955]。由于变成稀薄，边界条件被看作两温度跳并且速度滑倒。计算结果对分析结果被验证，并且优秀同意被获得了。结果证明了瑞利数字与增加温度被增加跳，温度的稳定效果比速度的更重要滑倒，并且现在的模型的计算稳定性比Darcy和Brinkman模型的好。

简介：Entropiccontributiontotheinteractionparameterxeffinthemodelincompressiblepolymer/oligomersystemiscalculatedbythelatticeclustertheory(LCT).Itisfoundthatintheoligomersolvent,thereexistsawideconcentrationrangethatthenon-combinatorial"entropicinteraction"termxeffφ1φ2perceptiblycounteractsthemeanfieldcombinaryentropy△SMF.Withtheincreaseofthesolventsize,bothxeffandtheratioxeffφ1φ2/ASMFfirstreachtheirmaximumandfinallybecometriviallytozero.Itisworthnotingthatnoanydemixingwasfoundinthecurrentcalculation.Thismakesthecontroversialidea"entropicallydrivendemixing"evenelusive.However,weproposethatfurtherworkoncompressible

简介：Inthispaper,weproposeanovelincompressiblefinite-differencelatticeBoltzmannEquation(FDLBE).Becausesourcetermsthatreflecttheinteractionbetweenphasescanbeaccuratelydescribed,thenewmodelissuitableforsimulatingtwo-waycouplingincompressiblemultiphaseflow.The2-Dparticle-ladenflowoverabackward-facingstepischosenasatestcasetovalidatethepresentmethod.Favorableresultsareobtainedandthepresentschemeisshowntohavegoodprospectsinpracticalapplications.

简介：TheequationofmotionofsandwichbeamwithpyramidallatticecoreinthesupersonicflowconsideringgeometricnonlinearityisformulatedusingHamilton’sprinciple.Thepistontheoryisusedtoevaluateaerodynamicpressure.Thestructuralaeroelasticpropertiesareanalyzedusingfrequency-andtime-domainmethods,andsomeinterestingphenomenaareobserved.Itisnotedthattheflutterofsandwichbeamoccursunderthecouplingeffectoflowordermodes.Thecriticalflutteraerodynamicpressureofthesandwichbeamishigherthanthatoftheisotropicbeamwiththesameweight,lengthandwidth.Theinfluenceofinclinationangleofcoretrussonfluttercharacteristicisanalyzed.

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简介：由考虑(2+1)维的non-isospectral分离零个弯曲方程，(2+1)维的non-isospectralToda格子层次在这篇文章被构造。因而一些减小(2+1)维的Toda格子层次被给。最后，(2+1)联合Toda格子层次的系统的维的integrable通过扩大被获得光谱问题。

简介：克莱在在抵抗力索引之间的关系上有重要影响我和水浸透Sw(即，I-Sw关系)水库岩石因为它复杂化这些岩石的当前的路径。因为在岩石内的泥土的毛孔结构，微分发和内容不能在实验期间被观察并且控制，由物理实验室大小在各种各样的岩石的传导性上揭示这些泥土效果的物理机制是困难的。我们在场在水库的电的运输性质上学习这些泥土效果的一条数字岩石途径用格子气体在毛孔规模摇自动化(LGA)方法。数字岩石样品从水库岩石的SEM图象与谷物尺寸分发的信息被构造。LGA然后充分在这些数字岩石上被使用与液体浸透了为在I-Sw关系的非高射炮行为上揭示体积的效果和泥土的分发模式模仿电的运输性质。在模仿的结果和实验室大小之间的好协议清楚地在岩石物理的数字研究表明LGA的有效性。把研究基于这些，一个新模型为描述在浸透代表和泥土的体积之间的关系的份量上被开发了(V嘘)。这开发可以在水库岩石中为液体浸透改进评估。

简介：一新(2+1)维的格子方程被介绍在联合Toda格子和相对论的Toda格子(TL-RTL)的层次在开始的二个成员之上基于方程在(1+1)尺寸。为联合TL-RTLequations的层次的Darboux转变被构造。在联合TL-RTLequations的层次的开始的二个成员的答案，以及新(2+1)维的格子方程被theDarboux明确地获得转变。