Supersonic Flow over a Finite-Width Rectangular Cavity
作者： Steven J. Beresh , Justin L. Wagner , Brian O. M. Pruett , John F. Henfling , Russell W. Spillers
DOI: 10.2514/1.J053097
关键词: Compressible flow 、 Compressibility 、 Turbulence 、 Particle image velocimetry 、 Choked flow 、 Optics 、 Boundary layer thickness 、 Mechanics 、 Mach number 、 Materials science 、 Turbulence kinetic energy
摘要: Two-component and stereoscopic particle image velocimetry measurements have been acquired in the streamwise plane for supersonic flow over a rectangular cavity of variable width, peering sidewall lip to view depths cavity. The data reveal turbulent shear layer recirculation region within it. mean position was found be function length-to-width ratio cavity, as turbulence intensity both region. Compressibility effects were observed which levels dropped, thickness decreased Mach number raised from 1.5 2.0 2.5. Supplemental crossplane planform suggest that zones high affixed each centered on lip, with strip stretched out across ratio. T...
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