旋流泵性能研究及叶轮三维造型

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1、中图分类号：TH311旋流泵性能研究及叶轮三维造型培养单位：江蒸太堂指导教师：旌型丕班蕴旦研究生：一一～．涯丞壶江苏大学二零零四年四月AbstractThevortexpumpisakindofnoncloggingpumpwithspecialtheoriesanddesignmethods．Withthedevelopmentofscienceandtechnology．vortexpumparewidely捌infieldsofindustryandagricultureinourcountryforitsuniquerun,ionandstructure．andit

2、’susingfields黼t’e。ommglarger．Inordertosatisfythepeople'srle．虻ds．itisnecessarytomakeafurtherstudyonvortexpump,todesignmoreefficiencyandmoreliablevortexpump。Onthebasisofthecomprehensiveanalysisofthehistoryandpresentstateoftheresearch011vortexpump,this牟攀胃investigateOllpumpperformance．throughs

3、econdaryempolderedtoolsinPro／E，constructthe3*DmodcIofimpellerwithparametricdesignmethod．Forthefirsttime。considerimpellerandvolute黼awhole．cMculmeflowfield'svelocityandprcssureofthepumpinteriorthroughnumericalsimulation,analyzedtheresultand#vesomesuggestions，hereisthemainpoints：1．Summarizeth

4、efiafitsoftheformer’sresearchonvortexpumpcomprehensivelyandsystemically，analysetherelationshipbetwecnthe群砖me埘calparametersandpumpp蕊fommeefromtheenergy越lgk．2．ThroughsecondaryempolderedtoolsPro／ProgramandFamilyTableinPro／E，programmeandconstructthe3-Dmodelofimpellerwithparametricdesignmetho也t

5、henconstructafamilytablewhichisconvememtomanagedocument．3．Constructthe3．DmodeloftheinnerflowfieldforamodelofWQX20-16—2．2．Introducedmethodsof蛳dgeneration,andapplyunstnlcmredgridgenerationtechniquetovortexpumpintemalflowarea．griddensityiscontrolledbythedistributionfunctionsP，Q，融4．Describethe

6、solvingmodedetailedly．UsingthetradeCFDso蠹黼namedFLUENT,forthefasttime。considerimpellerandvoluteasawhole,simulatevortexpumpintemalflowfield．Byanalysisandcompare，Reynoldstime-averagedcontrolequationsand膏一占two-equationturbulencemodelisapplied,whichiswidelyusedintheenOneering．and峨BFC．staggeredg

7、ridto蠡aperscthecon拄olequationwithFVM．variablesarestoredinastaggeredgridsystem,thensolveequationswithSIMPLECarithmetic．simulatevortexpumpinternalflow囊dd,analyzethesimulatedresult，TheresultisbenefittotheoryandpracticeofvortexPUmP．Keywords：vortexpump，performance，