摘要
FlowstructuresofaMach6transitionalboundarylayerovera260mmlongflaredconeareinvestigatedbytheparticleimagevelocimetry(PIV).Particleimagesnearthecurvedwallareinitiallytransformedintosurface-fittedorthogonalcoordinatesandsplicedwiththeir180°-symmetricimagestosatisfyano-slipconditionatthewall.Theresultsarethenreverselytransformedtothephysicaldomain.Directnumericalsimulation(DNS)isalsoperformedtovalidatetheexperimentalresults.Theexperimentalandnumericalresultsareinagreement,indicatingastrongdilatationprocesswithinthesecond-modeinstability.
出版日期
2019年02月12日(中国期刊网平台首次上网日期,不代表论文的发表时间)