冲击式旋转机械中气蚀空泡的动力学特性

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1、维普资讯http://www.cqvip.com第21卷第4期青岛化工学院学报V01．21No42OO0年12月JournalofQJngclaoInstitute0fChemi~lTechnologyDec2000文章编号：1001—4764(2000)04—0318一o4DynamicofCavitationalBubblesinRotorImpulseApparatusM-A．Promtov．M．V．Monastirsky(T~mhovStateTo：hnlcalUnivemi~．Russia)Abstract：Themathenmtioalmodelofcavit

2、ationclusterintherotorimpulseapparatusisde—velopedThefeatureofthismodelisthatcavitationisgeneratedbytheanharmonicpressurepulsegeneratedbyrotorimpulseapparatus．T}ledependencediagramsofretatiregeneratedcavitationpressureonStrouhalcriterionaregiven．Keywords：cavitation；cluster；pressureCLCIiii

3、luber：TH4Documentcode!A0Introduction1TheoryTrotorimpulseapparatus(RIA)areappliedInthegivenworktheparametersofgeneratingfortheintensificationofextraction，dispersion，pressurepulsearefoundbyBernoulliequationsolu—emulsificationandabsorptionprocesses．aswellastion，whichiswrittendowninatransient

4、form：combinedprocesses．RIAaresimple，operational，+号(+)+)=一孚屯reliableendefficientinexplorationofthehyarody．namiopulsarsRIA’Soperatingprincipleisthefol—(1)lowing(fig．1)．etrealrnental1iquidistrans-ferredunderpressureinthevolumeofrotor(1)．thengoestrOLlghtherotorchannels(2)，thestatorchannels(3)

5、．andtheworkcarrlerg(4)andgoesoutfromRIA．Therotorchannelsareperiodically哥coincidedwiththestatorchannelsbecaLksetherotorrotates．TheliquidisthesubjectoftheimpulsepressurefluctuationcaUSO~Srhecavitationbubbleformation．whichisformedinthecavitationcloud—claster[1]．ThemosteffectivemodeofRIAop-er

6、ationiscavitation．Thefeatureofcavitationphe—nomenaoccuiTenceintheapparatusis，thatthegeneratingpulseofpressure，whichisgeneratedbyFig．1ThesheⅡleofrotarimpulseapparatus·RIA．hasthecomplicatedshape．ThemodelofthesinglecavitationbubblebehaviourunderinfluenceTheequation(1)hasnoanalytlca1solutionT

7、he0fthepressurepulseJspresentedasaout'caob—numericalsolutionsofequation(1)arereceived．rainedbyapproximationofRIApressurepulseex—TheRunge—Kuttmethodwithiterationperimenta1oscillograms[2]．Receiveddate：2000—10—16维普资讯http://www.cqvip.com第4期MA．Prc~tov：DynamicdCavitationa