軸流葉輪內(nèi)流場相對速度的計算.pdf

1、西華大學(xué)碩士學(xué)位論文軸流葉輪內(nèi)流場相對速度的計算姓名：包艷申請學(xué)位級別：碩士專業(yè)：流體機械及工程指導(dǎo)教師：嚴(yán)敬20050501AbstractAxialflowpumpsfeaturinghighflowrates，lowheadsisnonreplaceableintheenvironmentprotectionandincreasingtheagricultureanti—disasterandrealizingtheriverto

2、acrossthedistrictwhichrelatingtothenationaIeconomyandsocietyprogressesIndustrydevelopingquicklyandlocalproducefactoriesaremoreandmoreManyfactoriesarequestingfornewmethodinaxial—flowpumpdesigntoimprovetheperformanceofprod

3、uctsespeciallytheirefficiencyInordertoaccomplishthistask，itisveryimportanttograspthepracticallawsofwaterflowinimpettor’sinnefwhenthewaterpowercalculatedFora10ngtimedomesticandinternationalR＆Dinstitutionandinstitutionofhi

4、曲erlearninglaunchthetheoryandtestresearchWOrkofflowintheaxialflowpump’SworkconstantlyOneofitspurposeisdisclosingwatermovementlawsintheaxial—flowimpellerSOitoffersthereliablebasisforperfectingthedesigntheoryandimprovingth

5、ecomputingmethodsButthestudyofinnerflowforimpellerisnotinvolvedyetTherefore，thetaskhaveveryandobviouslyoftheoriesmeaningwithapplicationvaluetofurtherclearanddefiniteaxialflowpumpininsideflowthecharacteristicdisUibutewith

6、speedtoThisiStheaxialpumpfunctionestimatewithimprovetheaxialthepumptodesignthemethodsfoundationworkWeknowtheexteriorcharacteristicofthepumpisonlytheappearanceoftheinteriorcharacteristicbehaves，moreoveronlypassingthestudy

7、oninteriorcharacteristicofthepumpandanalysingtheinsideindetail，mayjustprovidetherationalexplanationtothefineperformanceoftheimpellercanpromoteits’improvementandperfectioncorrectlyconverselynedestinationofthisPaDeristogra

8、sptherealIawsofwaterflowintheimpellorthrougllthenumericalstudyforitsinnerflowThesignificanceofthestudyliesinthreeaspects；fnsflytheappropriatenumericalcalculatingmethodfortheinnerflowofimpellerintheAxialflOWpumpisobtained

9、：secondlytheattemptsofsupplyingthegapofthestudyinthisfieldaremade：thirdlyithaspromotedpeopletotheimpellordesign，developmentandperfectionoftheresearchapproachandimprovedthelevelofunderstandingoftheflowtheorywitllintheimpe

10、llorThUS，itcanestablishtheoreticalfoundationfordesignertoexplorethenewmethodofaxialflowpumpandimprovetheproducts’performaceThemainachievementsareasfollows：(1)Singularitydistributionmethodisapplicableintheinnerflowstudyof