資源描述：
《冪律流體偏心環(huán)空螺旋流紊流的PIV實(shí)驗(yàn)研究》由會員上傳分享，免費(fèi)在線閱讀，更多相關(guān)內(nèi)容在學(xué)術(shù)論文-天天文庫。
1、大慶石油學(xué)院碩士研究生學(xué)位論文ExperimentalStudyonTheHelicalTurbulentFlowofPowerLawFluidinEccentricAnnuluswithPIVTechnologyAbstractInoilindustry,thehelicalflowofpowerlawfluidineccentricannulusisextremelycommen．turbulentflowisoneofthemostcommonflowconditions．Generally,inoi
2、lwelldrilling．theflowofdrillfluidindrillpipeanddrillcollaristurbulentflOW,fortheflowofdrillfluidinannulus，sometimesitislaminarflowandsometimesitisturbulentflow．Withthedevelopmentofscienceandtherequestofprojectapplication，itgreatlyacceleratedtheprogressoftu
3、rbulentresearch，butturbulentflowitselfisanextremelycomplexflowconditionwithstrongrandomness．conspired、vitllthenonlinearofpowerlawparcem，theasymmetryofeccentricannulus，thecomplexityofhelicalflowandthelimitationsofflowfield’Stestingtechnology,SOfar,nobodyhas
4、researchedthehelicalturbulentflowofpowerlawfluidineccentricannulus，somerelevantprojectproblemsarestillhardresolved．TheadventofPIVtechnologyprovidedUSwitllmoreefficientmeansforunderstandingtheinnersituationofflowfieldthoroughly,SOthispaperdevelopedexperimen
5、talstudyonthehelicalturbulentflowofpowerlawfluidineccenmcannuluswithPIVTechnology．Inviewoftheresearchsubject，thispaperestablishedasetofdeviceofverticalannuluspipelinethattheeccentricityWasadjustable．toresearchhelicalturbulentflowlawofpowerlawfluidinannulus
6、line．PIVexperimentsofwaterandpolymerwatersolutionwerecarriedoutseparately,obtainedvelocityvector，flowline，velocitycontourandsituationofaxialvelocitydistributioninannuluswheninnertubeismotionlessandcicling．Establishedanewdiscriminantmethodofflowpanem—byvelo
7、citycontours，andanalysedaffectingfactorsandaffectinglawsofaxialvelocitydistribution，pressuregradientandflowcondition，discoveredfeaturesandoccuringprocessofhelicalturbulentflowofpowerlawfluidineccentricannulusfromvelocitycontours．Thispaperprovedthefeasibili
8、tyofPWtechnologyfortheresearchofhelicalturbulentflowofpowerlawfluidineccentricannulus，theviewisproposedinnovately,suppliedthinkingforexperimentalstudyofotherfluid’Sflowlaw,theexperimentalresultsofthispaperwil
