Measurement of Density in High Speed Shear Layers and Oblique Shocks using Filtered Rayleigh Scattering Conference Paper uri icon

abstract

  • © 2017, American Institute of Aeronautics and Astronautics Inc. All rights reserved. This study presents results from measurements performed in an underexpanded jet of Mach number 4 and an oblique shock layer from a 2D wedge at an approach flow, also of Mach number 4. The diagnostic, employing filtered Rayleigh scattering (FRS), is used to obtain spatial distributions of density in a 2D plane encompassing the jet, and the density rise across the oblique shock from the wedge in low ambient density conditions. The results compare very well those obtained with unfiltered Rayleigh scattering and computational fluid dynamics (CFD) simulations, thus demonstrating that this technique is capable of obtaining quantitative measurements of density while offering enhanced suppression of background scattering.

author list (cited authors)

  • George, J., Jenkins, T. P., & Miles, R. B.

citation count

  • 2

publication date

  • January 2017