多噴嘴沖擊式水輪機(jī)轉(zhuǎn)輪的三維建模與強(qiáng)度分析.pdf

1、西華大學(xué)碩士學(xué)位論文多噴嘴沖擊式水輪機(jī)轉(zhuǎn)輪的三維建模與強(qiáng)度分析姓名：楊佐衛(wèi)申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：流體機(jī)械及工程指導(dǎo)教師：宋文武20070401眄華人學(xué)碩十學(xué)位論文ThreeDimensionModelingandStrengthAnalysisofMulti—jetTurbineFluidMachineryandEngineeringMDCandidate：YangzuoweiSupervisor：PrefSongwenwuABSTR

2、ACTAsintricatefailuremechanism，theinnerflowofPeltonturbine，3Dunsteadyturbulence，characterizedfleestreamsurfaceinfluencedbyrotaryforce，isalsoconsiderablycomplexWithagreatdealofunknowndetails，inthecaseofmultijetturbine，mef

3、lowmotionofrunnerandhousingcasewillbemoreperplexed，Inthisarticle，withmultiturbinemodelisestablished，bymakeuseofCFDtechnology，theinnerflowofscoop，steadyandfreesurfaceflowcarriedoutnumericalsimulationandgainedcontentresult

4、Onthebasisoftheflowtheoryanalysisofmultijetturbine，bymakeuseofFLUENTsoftware，gainedthefluidparticlemovementtraceofsinglescoopworkingface，thisoutcomewillprovidescientificevidencefortheoptimumdesignofrunnerprofileAtthesanl

5、etime，athome，atfirsttime，accordingtowhetherscoopnotchdischargeornot，theoptimumscoopnumberofmultijetturbinewillbedecidedThisthoughtandmethodisasignificantcontributionfordecisionofscoopnumberofmultijetturbineInthisarticle，

6、gainedtheinnerpressuredistributionprincipleofhousingcase，thisoutcomewillprovidescientificevidenceforairinflatingandtailwaterelevationgainedthefluidparticlemovementtraceofmultijetturbinerunner，gainedtheconclusiontherearen