摘要
Anexperimentalmodelwassetuptoinvestigatetheformationandevolutionofthefreesurfacevortex.AParticleImageVelocimetry(PIV)wasusedtomeasurethefreesurfacevortexflowfieldatdifferentdevelopmentstages.Flowvisualizationwasusedtolocatethevortexpositionandfinditsstructure.Empiricalformulasaboutthecriticalsubmergenceandthewholefieldstructurewereobtained.ItisfoundthatthetangentialvelocitydistributionissimilartothatoftheRankinevortexandtheradialvelocitychangeslittleinthevortexfunctionalscope.Vortexstartsfromthefreesurfaceandgraduallyintensifiestoairentrainmentvortex.Thevortexcoremovesduringtheformationandevolutionofthefreesurfacevortex.Basedontheexperimentalmodel,thevortexpositionandstructurewerepredictedbynumericalsimulationcombinedwithavortexmodelandcomparedwiththatoftheexperiments,whichshowssatisfactoryagreement.
出版日期
2008年04月14日（中国期刊网平台首次上网日期，不代表论文的发表时间）
