Flow visualization using fluorescence from locally seeded I2 excited by an ArF excimer laser
作者： R. J. Exton , R. J. Balla , B. Shirinzadeh , M. E. Hillard , G. J. Brauckmann
关键词: Fluorescence spectroscopy 、 Flow visualization 、 Mach number 、 Boundary layer 、 Seeding 、 Planar laser-induced fluorescence 、 Wake 、 Excimer laser 、 Materials science 、 Optics
摘要: A new concept for flow visualization is demonstrated in which fluorescence from locally seeded iodine viewed the wake of simple aerodynamic models at Mach 6. Localized seeding performed by painting a small area ceramic model with tincture iodine. When injected into flow, adsorbed entrained boundary layer, follows contour, and ultimately mixes region. Planar “snapshots” are taken exciting an ArF excimer laser sheet 193 nm observing 210–600 region intensified CCD camera.
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