简介：Performancecomparisonsarecomposedoftwoparts:thefirstpartcontainsthesystematicallyinvestigationofsixdifferenceschemesincludingCDS,FUDS,HDS,PLDS,SUDSandQUICKforconvectiontermsinnumericalfluidflowandheattransferbasedonthefinitevolumemethodusingstaggeredandRhie-Chow'smomentuminterpolationcollocatedgrids,thesecondpartcontainsthecomparativecomputationsbeingconductedonRhie-Chow'smomentuminterpolationcollocatedgridandThiart'sfinitedifferenceschemebasednonstaggeredgrid.Three3-Dcasesthathaveanalyticalorbechmarksolutionsareadopted.FortheFirstpart,theresultsofcomputationsindicatethat,allthesixschemeshavethesamenumericalaccuracywhenthediffusiontermisredominant,Withtheincreaseofconvection,theFUDS,HDSandPLDSalmosthavethesameaccuracyintwoofthosegridsystems,whiletheSUDSandQUICKhavehigheraccuracythantheformer,TheaccuracyofCDSissomethinginbetween,Forthesamunder-relaxationfactorsandconvergencecriterion,theconvergencerateofeachschemeonthosetwogridsystemsarenearlbyequalwiththatonthestaggeredgridbeingalittlebitfaster.ForQUICKandCDS,smooth,non-oscillatingsolutionscanbeobtaninedgridbeingalittlebitfaster,ForQUICKandCDS,smooth,non-oscillatingsolutionscanbeobtainedevenwhenlocalPecletnumbermaybeaslargeas31.2-31.3,Forthesecondpart,itisconcludedthatsimplifiedcollocatedgridsystemispreferablefromnumericalaccuracy,gridPecletnumberlimit,sensitivitytotheunderrelaxationfactorandthefreedominchoosingfinitedifferenceschemeforconvectionterm.

简介：Anultrasensitivemagneticfieldsensorbasedonacompactin-fiberMach–Zehnderinterferometer（MZI）createdintwin-corefiber（TCF）isproposed,anditsperformanceisexperimentallydemonstrated.AsectionofTCFwassplicedbetweentwosectionsofstandardsingle-modefibers,andthenamicrochannelwasdrilledthroughonecoreoftheTCFbymeansoffemtosecondlasermicromachining.TheTCFwithonemicrochannelwasthenimmersedinawater-basedFe3O4magneticfluid（MF）,formingadirectcomponentofthelightpropagationpath,andthensealedinacapillarytube,achievingamagneticsensingelement,whichmergestheadvantagesofanMZIwithanMF.Experimentswereconductedtoinvestigatethemagneticresponseoftheproposedsensor.Thedevelopedmagneticfieldsensorexhibitsalinearresponsewithinameasurementrangefrom5to9.5mTandanultrahighsensitivityof20.8nm/mT,which,toourbestknowledge,is2ordersofmagnitudegreaterthanotherpreviouslyreportedmagneticsensors.Theproposedsensorisexpectedtooffersignificantpotentialfordetectingweakmagneticfields.

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简介：Bianchi类型--我有通过这些技术的磁场ofbarotropic完成式液体分发的宇宙论的模型使用了由的巨大的绳更最近并且Stachel被调查。获得宇宙的确定的模型，宇宙充满barotropic完成式液体分发，这被假定。磁场由于与无限的电的电导率沿着X轴生产的电流。模型的行为当面并且和另外的物理方面的磁场的缺席进一步被讨论。

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简介：现在的学习在拉长的柱体上面对magnetohydrodynamics和热产生/吸收系数在威廉森液体的停滞点流动上揭示homogeneous/hetereogeneous反应的效果。进一步，可变热电导率和热层化的效果也被考虑。管理部分微分方程在类似转变的帮助下被变换成平常的微分方程。系统联合了非线性的平常的微分方程然后被射击解决技术。MATLAB射击代码被比较在限制情况与以前出版的工作验证。当现在的结果与MATLAB内建的功能bvp4c相比时，结果进一步被加强。突出的参数的效果为速度，温度和集中侧面图形地被商讨。为不同参数的皮磨擦系数和Nusselt数字在桌子的帮助下被调查。

简介：Aone-dimensional(1D)fluidsimulationofdualfrequencydischargeinheliumgasatatmosphericpressureiscarriedouttoinvestigatetheroleofthesecondaryelectronemissiononthesurfacesoftheelectrodes.Inthesimulation,electrons,ionsofHe+andHe2+,metastableatomsofHe*andmetastablemoleculesofHe*2areincluded.Itisfoundthatthesecondaryelectronemissioncoefficientsignificantlyinfluencesplasmadensityandelectricfieldaswellaselectronheatingmechanismsandionizationrate.TheparticledensitiesincreasewithincreasingSEEcoefficientfrom0to0.3aswellasthesheath’selectricfieldandelectronsource.Moreover,theSEEcoefficientalsoinfluencestheelectronheatingmechanismandelectronpowerdissipationintheplasmaandbothofthemincreasewithincreasingSEEcoefficientwithintherangefrom0to0.3asaresultofincreasingofelectrondensity.

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简介：Interfacialinternalwavesinathree-layerdensity-stratifiedfluidareinvestigatedusingasingularperturbationmethod,andthird-orderasymptoticsolutionsofthevelocitypotentialsandthird-orderStokeswavesolutionsoftheassociatedelevationsoftheinterfacialwavesarepresentedbasedonthesmallamplitudewavetheory.Asexpected,thethird-ordersolutionsdescribethethird-ordernonlinearmodificationandthethird-ordernonlinearinteractionsbetweentheinterfacialwaves.Thewavevelocitydependsonnotonlythewavenumberandthedepthofeachlayerbutalsoonthewaveamplitude.

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简介：在概括粘弹性的液体上的古典学习，动量方程被考虑部分组成的模型导出，当精力方程被忽略时它的效果。这份报纸论述调查因为magnetohydrodynamic(MHD)流动和热与第二顺序速度的效果由于一个指数的加速盘子不可压缩的概括汉堡包液体转滑倒。精力方程和动量方程被部分汉堡包液体联合组成的模型。速度的数字解决方案，温度并且砍应力用与G1算法相结合的修改含蓄的有限差别方法被获得，其有效性被比较与分析答案证实。我们的结果证明部分参数并且在流动上的影响互相是相反的，它就像温度上的二个参数的效果一样。而且，松驰时间1的影响趋势和速度上的延迟时间3互相是相反的。增加边界参数将支持温度，但是在温度边界层厚度上有小效果。

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