简介：

简介：恐水病地联合的polyacrylamide(HAPAM)被新奇的猫的激进的copolymerization在水的答案准备离子的表面活跃的单体，dimethylhexadecyl(3-acrylamidopropyl)铵溴化物(DMHAB)，与压克力，酰胺(AM)面对DMHAB/CTAB混合了微粒。恐水病的微块的长度(N在HAPAM的H)被DMHAB的臼齿的部分在混合微粒控制，它能被CTAB的比率调停到DMHAB。不变的荧光探查和viscometry实验的结果证明HAPAM协会的能力被恐水病的微块的长度决定。有悦耳的协会能力的HAPAM为变厚的代理人正在答应材料。

简介：Viscosityisoneofthemostimportantpropertiesofcolloidsinmixing,transportation,stabilization,energyconsumption,andsoon.AccordingtoEinstein'sviscosityequation,theviscosityofacolloidaldispersionincreaseswiththeincreaseofparticleconcentration.Andtheequationcanbeapplicabletoallmicro-particledispersions,becausetheeffectofsolvationfilmscoatedonparticlescanbeneglectableinthatcase.Butwiththedecreaseofparticlesizetonano-scale,theformationofsolvationfilmsonnano-particlescangreatlyaffecttheviscosityofadispersion,andEinstein'sequationmaynotbeapplicabletothiscase.Inthiswork,onekindofmicro-sizesilicaparticleandtwokindsofnano-sizesilicaparticleswereusedtoinvestigatetheeffectofsolvationfilmsondispersionviscosity,dispersedinwaterandethylalcoholsolvents,respectively.Theresultsoftheoreticalcalculationandexperimentalinvestigationshowthattheincreaseofviscosityiscontributedfromsolvationfilmsbymorethan95percentfornano-particledispersions,whilelessthan10percentformicro-particledispersions.

简介：In[1],Dingetal.studiedthenonhomogeneousBurgersequationThispaperwillprovethatwhenμ→0thesolutionof(1.1)willapproachthegeneralizedsolutionofTheauthorsnoticethattheequation(1.2)isbeyondthescopeofinvestigationsbyOleinikO.in[2].Thesolutionshereareunboundedingeneral.Thepaperalsostudiestheδ-wavephenomenonwhen(1.2)isjointedwithsomeotherequation.

简介：

简介：ThispaperinvestigatesnumericallytheinherentirreversibilityinunsteadygeneralizedCouetteflowbetweentwoparallelplateswithvariableviscosity.ThenonlineargoverningequationsarederivedfromtheNavier-Stokesequationsandsolvednumericallyusingasemi-discretizationfinitedifferencemethodtogetherwiththeRunge-Kutta-Fehlbergintegrationscheme.Theprofilesofvelocityandthetemperatureobtainedareusedtocomputetheentropygenerationnumber,Bejannumber,skinfrictionandNusseltnumber.Theeffectsofembeddedparametersonentireflowstructurearepresentedgraphicallyanddiscussedquantitatively.

简介：二个模型基于静水力学的原始方程被建议。第一个模型仅仅是有部分粘性的原始方程，并且向在海洋和空气的大规模波浪结构是面向的。第二个模型是粘滞原始方程与光谱旋涡粘性，并且向狂暴的地球物理的流动是面向的。为两个模型，全球强壮的答案的存在和唯一被建立。为第二个模型，旋涡粘性参数趋于到零的古典原始方程的答案的答案的集中也被建立。

简介：1.INTRODUCTIONInconnectionwithexperimentalmodelinvestigationsofcavitationphenomenaatsubmergedbodiessocalledscaleeffectscanoccur.Inordertobeabletopredictthecavitationbehaviourofaprototypefrommodeltests,thesescaleeffectsmustbeknownandbetakenintoaccountbysimu-larityrelations.Inpreviousinvestigationstestbodyfamiliesofdifferentshapesandsizewereinvestigatedinwaterofdifferenttensilestrengthforcavitationinception.

简介：ＴＨＥＣＯＲＲＥＬＡＴＩＯＮＳＴＵＤＹＢＥＴＷＥＥＮＰＬＡＳＭＡＶＩＳＣＯＳＩＴＹＡＮＤＦＩＢＲＩＮＯＧＥＮＣＯＡＧＵＬＡＢＩＬＩＴＹＴＨＥＣＯＲＲＥＬＡＴＩＯＮＳＴＵＤＹＢＥＴＷＥＥＮＰＬＡＳＭＡＶＩＳＣＯＳＩＴＹＡＮＤＦＩＢＲＩＮＯＧＥＮＣＯＡＧ...

简介：TheviscosityofCumeltisobtainedtobeintherangesfrom2.418to3.039mPa.sundervacuumatmosphere(2Pa),from2.907to3.425mPa.sundernitrogengasatmosphereandfrom3.352to4.015mPa.sunderargongasatmosphere.Theactivationenergyisestimatedtobe0.224,0.162and0.150eVforthevacuumatmosphere(2Pa),nitrogengasatmosphereandargongasatmosphere,respectively.TheresultsreflecttheessentialstructurealchangeintheCumeltbyusingdifferentatmospheres.

简介：Thispaperconsidersthestationaryflowofincompressiblemicropolarfluidthroughathincylindricalpipegovernedbythepressuredropbetweenpipe'sends.Itsgoalistoinvestigatetheinfluenceoftheviscositycoefficientsontheeffectiveflow.Dependingonthemagnitudeofviscositycoefficientswithrespecttothepipe'sthickness,itderivesdifferentasymptoticmodelsanddiscussestheirproperties.

简介：这份报纸与可变粘性为分离Oseen问题的反复的答案处理preconditioners。这个工作的动机从多相的流动的数字模拟发源，由联合Cahn-Hilliard和不可压缩的海军司烧方程管理了。某已知的preconditioning技术上的可变粘性的影响被分析。理论考虑和数字实验证明一些广泛地使用了preconditioning技术因为当粘性正在变化时，有经常的粘性的Oseen问题也是有效的。

简介：Theweaknonlinearmodulationofthesurfacewaveofathree-dimensionalimcompressiblefluidwithoutrotation,whichiscontainedinarectangulartroughisstudiedbyusingthemethodofmulti-plescalesperturbationtheory.Theeffectsofviscidandexternaldriveonthemotion,whichmodifiestheLarraza-Puttermanequation,areconsidered.TheresultsareconsistentwiththatofMiles.

简介：Theeffectsofseveralcommercialdispersants,includingAN-2000,ammoniumpolyacrylate,sodiumtripolyphosphate,sodiumhexametaphosphate,andofsolidsloadingandofelectro-fusedmagnesiaonrheologicalpropertiesofaqueousalumina-spinelslurrieswerestudied.TheresultsrevealthatAN-2000isthemosteffectiveoneamongtheselecteddispersantsforalumina-spinelslurries.With0.5%weightofAN-2000,the57vol%solidsloadobtainedatshearrateof50s-1.

简介：

简介：在这篇文章，我们在影响温度依赖者粘性下面作为基础液体与水向一张拉长的表讨论碳nanotubes的二维的停滞点流动。类似转变被用来为nanofluid简化管理边界层方程。这是在有可变粘性的一张拉长的表上的CNT的停滞点流动上的第一篇文章。粘性的一个众所周知的雷纳兹模型被使用。单个墙CNT与水被用作基础液体。结果有相关边界条件的非线性的联合方程用射击数字地被解决方法。无尺寸的速度，温度，皮肤磨擦，和Nusselt数字上的流动参数的影响被探索并且介绍处于良好的竟技状态图并且身体上解释了。

简介：-Aone-layertime-invarianteddyviscositymodelisspecifiedtodevelopamathematicalmodelfordescribingtheessentialfeaturesoftheturbulentwaveboundarylayeroveraroughbed.Thefunctionalformoftheeddyviscosityisevaluatedbasedoncomputationalresultsfromatwo-equationturbulencemodelinwhichtheeddyviscosityvarieswithtimeandspace.Thepresenteddyviscositymodelsimplifiesmuchofthemathematicalcomplexityinmanyexistingmodels.Predictionsfromthepresentmodelhavebeencomparedwithawiderangeofexperimentaldata.Itisfoundthattheeddyviscositymodeladoptedinthepresentstudyisphysicallyreasonable.

简介：为铸造过程(VIMP)的真空注入的一个低粘性环氧基树脂树脂系统(猎人1564/3486)的chemorheological行为与粘性实验被学习。dual-Arrheniusrheological模型和设计粘性模型被建立并且与试验性的数据相比。结果证明在dual-Arrhenius模型计算的更早的阶段的粘性比试验性的数据小，当设计模型计算的数据更大时。一起联合二个模型能以一种更可信的方式预言树脂系统的rheological行为。为VIMP的树脂系统的处理窗口基于二个模型被决定。处理温度的最佳是3045楎倭挠瑡污吗？

简介：TheinfluencesofboththevolumeofPS/toluenesolutionintheUbbelohdeviscometerandtheprecisionofthetimemeasuringontheviscositybehaviorindiluteandextremelydiluteconcentrationregionareinvestigatedItwasfoundthattheinfluenceoftheformercanneglect,butthatofthelatterissoprominentthatthedatafluctuatebitterlyandlinearityofthecurveofthereducedviscosityvs.Concentration(ηsp/c～c)becomestoobadtoobeytheHugginsequationdowntotheextremelydiluteregion,despitetheerroroftheflowtimes△t≤0.2s,whichispermittedbytheconventionalmethodofviscositymeasurement.Throughstrictmathematicalanalyses,itwasfoundthatthcerror(E)ofthereducedviscosityisinproportionandinverseproportionto△tandconcentrationc,respectively.Sothelesstheconcentration,themoretheerroris.Consequently,alowestconcentrationlimitcLcorrespondingtogivenexperimentalerrormayexistanditwillbemeaninglessforfurtheroperationbelowcLbecauseofthegreatfluctuationofthedata.Therefore,itneedstoseriouslyreconsidertheapplicationoftheconventionalmethodofUbbelohdeviscositymeasurementintheextremelydilutepolymersolutionundertraditionalconditionsbecauseofthegreatinfluenceoftheexperimentalerror.

简介：ＥＦＦＥＣＴＯＦＳＵＣＰＥＮＤＩＮＧＭＥＤＩＵＭＶＩＳＣＯＳＩＴＹＯＮＯＲＩＥＮＴＡＴＩＯＮＡＮＤＤＥＦＯＲＭＡＴＩＯＮＯＦＲＢＣＳＩＮＡＳＨＥＡＲＦｌＯＷＦＩＥＬＤＷｅｎＺｏｎｇ－ｙａｏ，ＭａＷｅｉｙｕａｎ，ＧａｏＴｉｅ，ＳｕｎＤａｇｏｎｇＤｅｐａ...