学科分类
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1 个结果
  • 简介:FlowstructuresofaMach6transitionalboundarylayerovera260mmlongflaredconeareinvestigatedbytheparticleimagevelocimetry(PIV).Particleimagesnearthecurvedwallareinitiallytransformedintosurface-fittedorthogonalcoordinatesandsplicedwiththeir180°-symmetricimagestosatisfyano-slipconditionatthewall.Theresultsarethenreverselytransformedtothephysicaldomain.Directnumericalsimulation(DNS)isalsoperformedtovalidatetheexperimentalresults.Theexperimentalandnumericalresultsareinagreement,indicatingastrongdilatationprocesswithinthesecond-modeinstability.

  • 标签: HYPERSONIC transition PARTICLE image velocimetry(PIV) direct