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ID:2068493
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时间:2017-11-14
《《工程流变学》(双语)(英)复习提纲及习题》由会员上传分享,免费在线阅读,更多相关内容在应用文档-天天文库。
1、《工程流变学》(双语)复习提纲及习题Review1.Whatistherheology?2.Howtosortthetypeofflow(fluid)?3.WhatistheNewtonianflow?WhatistheNon-Newtonianflow?4.DescribethecharacteristicandsortsofNon-Newtonianflow.5.Describethefactorsaffectingonviscosityofpolymermelt.6.WhatismeaningofthesymbolinPowerlaw?7.Doesthepolymermelthave
2、thoseviscoelesticphenomena?8.Doesthefoodmaterialhavethoserheologicalpropertiestypically?9.Describemeasurementprincipleofthecapillaryrheometer.10.UnderstandthatderivationandprincipleoftheMaxwellmechanicalmodelofviscoelesticfluids.11.UnderstandthatderivationandprincipleoftheVoigt-Kelvinmechanicalmod
3、elofviscoelesticfluids.12.Understandthefirststepknowledgeoftensor.13.UnderstandhowtoderivetheexpansionofHamiltonoperator,Laplaceoperator,Substantialderivativeandvelocitygradientinrectangularcoordinates.14.UnderstandtheRheologicalfundamentalequationsandapplyitsprincipletoanalyzetypicalchannels.Prob
4、lemsA.Writetheexpansionofinrectangularcoordinates.B.Consideraflowforwhichthex-componentofvelocityis,andz-componentiszero.Calculatethey-componentofvelocity.Assumeincompressibility.(aandbareconstant,wheny=0)C.TestifythattherelationshipofconsistencyKandapparentconsistencyK’asfollows.D.Testifythatthet
5、emperatureprofilesinlaminarflowwhichobeysthepowerlawinacylindricalchannelasfollows:(T0—thetemperatureatthecentreofthetube,TW—thetemperatureatthetubewall,R—radiusofthetube)E.Thefollowingdatahavebeenobtainedonaplasticsat190℃withcapillaryrheometer.Maximumshearstressτ(Mpa)0.160.30.540.7apparentshearra
6、te(1/s)8.0440.3201403Where:,1.Findapparentviscosityforeachapparentshearrate2.Plotτversus,andversusinarithmeticcoordinatesorlogarithmcoordinates3.Calculatemeltflowindexn,consistencyK,andapparentconsistencyK’.
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