An investigation of the effect of tabs on jets using advanced diagnostics

M. F. Reeder, M. Samimy, Gregory S Elliott

Research output: Contribution to conferencePaperpeer-review

Abstract

The effect of tabs on supersonic jets has been assessed using two laser-based experimental techniques. In the first instance, visualizations of the mixing layer were obtained simultaneously from two orthogonal vantage points, yielding considerable insight into the characteristics of the mixing. Secondly, quantitative data was gathered using filtered Rayleigh scattering (FRS). Instantaneous images were collected for both techniques using a Nd:YAG pulsed laser and intensified CCD cameras. Average streamwise velocities were measured in isothermal Mach 1.0, 1.5, and 2.0 jets using FRS across the two-dimensional image field. When tabs were employed, the molecular scattering clearly showed the drastic deformation of the jet. From these images, quantitative data was derived which definitively identifies the presence of counter-rotating streamwise vortices generated by each tab.

Original languageEnglish (US)
StatePublished - Jan 1 1995
Externally publishedYes
Event33rd Aerospace Sciences Meeting and Exhibit, 1995 - Reno, United States
Duration: Jan 9 1995Jan 12 1995

Other

Other33rd Aerospace Sciences Meeting and Exhibit, 1995
Country/TerritoryUnited States
CityReno
Period1/9/951/12/95

ASJC Scopus subject areas

  • Space and Planetary Science
  • Aerospace Engineering

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