旋转磨料射流套管开窗的数值模拟分析

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1、NumericalSimulationResearchonSwirlingAbrasiveWaterJetCuttingWindowTechniqueWangYu(Oil&GasWellEngineering)DirectedbyZhouWeidongAbstractWiththedevelopmentofthecomputationaltechnologyandthetheoryoffiniteelement，numericalsimulationhasbeenallimportantmethodfortheoptimizati

2、onofthefluidmechanics．Thisthesisfocusedonthenewlydevelopedswirlingabrasivewaterjetcuringwindowt001．Usingthemethodofnumericalsimulation，optimizedthegeometricconfigurationofthet001．Thecorecomponentsofthetoolaretheswirlingjetnozzleandtheimpeller．Fromthebasiccharacteristi

3、csequationofnozzleandimpellerandgeometryanalysisCanbeseen，impelleroutletangle，vanenumberandnozzlediameterarethemaininfluentialfactorsofswirlingabrasivewaterjetefficiency．Withthemethodofthenumericalsimulation，simulatingdifferentcombinationsoftheimpellerandnozzle，obtain

4、edthestructuralcharacteristicoftheswirlingwaterjetandinfluentiallawoftherelatedparametersontheswirlingwaterjetspreadangle．Simulatingerosiveactionofthesingleabrasiveparticleoncasing，gavevariationprocessofthecasingstress-strainfieldandabrasiveparticledisplacement-veloci

5、tyfield，andinfluentiallawoftherelatedparametersontheerodeddepth．W．mthefull-sizesimulationoftheswirlingabrasivewaterjetcuringwindowtool，obtainedthefluid-particletwo-phasedistributionoftheinteriorandexteriorofthetool，andtheerosionattackoftheswirlingabrasivewaterjet011ca

6、sing．Thenoptimizedtheimpellerandnozzleparameterswhichmeetingrequirementsofthecuringwindow,andverifyingthecorrectnessofnurnericalsimulationresultsbythecomparisonofthenumericalsimulationresultsandtheexperimentalresults．Keywords：swirlingjet，abrasivejet，windowcuring，numer

7、icalsimulation≮“目录第一章绪论⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯一11．1课题研究的目的和意义⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯．．11．2旋转射流及其数值模拟研究现状⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯21．2．1旋转射流技术⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯21．2．2旋转射流数值模拟技术⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯51．3磨料射流及其数值模拟研究现状⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯71．3．1磨料射流技术⋯⋯⋯

8、⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯一71．3．2磨料射流数值模拟技术⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯91．4主要研究内容⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯．11第二章旋转磨料射流套管开窗基本