INSTANTANEOUS SUPERSONIC VELOCITY PROFILES IN AN UNDEREXPANDED SONIC AIR JET BY OXYGEN FLOW TAGGING Academic Article

abstract

• The statistics and structure of velocity profiles across the free shear layer of a sonic free jet are examined using oxygen tagging by Raman excitation plus laser-induced electronic fluorescence. The flow is observed both before and after the Mach disk at centerline Mach numbers of 3.6 and 0.4, respectively. Instantaneous images of the displaced line of tagged molecules show a clear picture of the turbulent structure including large-scale coherent features.

authors

• Miles, Richard

published proceedings

• PHYSICS OF FLUIDS A-FLUID DYNAMICS

altmetric score

• 6

author list (cited authors)

• MILES, R. B., CONNORS, J., MARKOVITZ, E., HOWARD, P., & ROTH, G.

citation count

• 45

publication date

• February 1989

publisher

• AIP Publishing  Publisher

keywords

• 40 Engineering
• 4001 Aerospace Engineering
• 4012 Fluid Mechanics And Thermal Engineering

Digital Object Identifier (DOI)

• 10.1063/1.857460

start page

• 389

end page

• 393

volume

• 1

issue

• 2

URL

• http://dx.doi.org/10.1063/1.857460