计算流体力学CFD外文翻译

《计算流体力学CFD外文翻译》由会员上传分享，免费在线阅读，更多相关内容在教育资源-天天文库。

1、******大学****届本科生毕业设计（论文）外文翻译ComputationalFluidDynamics–orHowtoMakeaGoodBoatFastDavidVacantiThetermCFDisshowingupmoreoftenthesedaysinarticlesdescribingthedesigneffortsusedtomakeVolvo60roundtheworldracersandAmerica’sCupyachtsfaster.ComputationalFluidDynamicsorCFDactuallycoversagreatmanyeng

2、ineeringspecialtiesandisnotthesoledomainofboatandshipdesign.InthisarticlewewillreviewwhattypesofCFDproductsexistandhopefullyprovidesomeunderstandingofwhenandhowCFDproductsarebestsuitedtoaproject.ComputationalFluidDynamicsistheapplicationofcomputerstothemodelingoffluidcharacteristicswhene

3、itherthefluidisinmotionorwhenanobjectdisturbsafluid.Afewexamplesofafluidinmotionarewaterorchemicalflowinpipes,heatingandventilationsystemsconductingcooling,heatingorfreshairsuppliestoabuilding.Fluidsinmotionalsoincludeflameandfireeffectsincombustionorjetengines.Surprisedbythesefieldsofin

4、terest?Whataboutexamplesofanobjectdisturbingafluid?Examplesincludestirringpaddlessubmergedinatankofwaterandeffluentinawastetreatmentplant,aircraftofallkinds,carsandtrucksathighwayorracingspeedsandevenmonohullsailboats,ship,multihullsailboatstonamebutafew.Obviously,anopenmindisimportantwh

5、enconsideringwhatconstitutesafluid.Fluidscanexistingaseousandliquidstatesandsciencehasrecentlyfoundthatevensomesolidscanexhibitfluidlikecharacteristicsunderrightconditions.Scientistshavefoundthatsomeofthemostspectacularanddeadlylandslidesorrockfallsbehaveasafluidwhilethemassofstoneandsoi

6、lorsandisinmotion,onlytoreturntoamostdecidedlysolidformwhenthemotionsubsides.Thegeneralfieldoffluiddynamicsdiffersfromthefieldofboatdesigninonecriticalway.Onlyboatdesigndealswithavehiclepassingthroughthetwofluidsofairandwatersimultaneously.Ouratmosphereisacompressiblefluid,thoughnotatyac

7、htingorevenhigh-poweredboatracingspeeds.Aircanchangeindensityaccordingtoaltitude,temperatureandhumidity.Waterisanincompressiblefluidthatcanvaryinviscosityaccordingtoitssalinityandtemperature.Formostofus,smalleffectssuchasvariablesalinityandtemperaturearenotofconcern,butca