Energy deposition applied to a transverse jet in a supersonic crossflow

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

An experimental investigation of a sonic underexpanded jet injected normally into a Mach 2.25 crossflow is reported. The jet exit geometry was circular and was operated at a jet-to-crossflow momentum flux ratio of 1.7. As a means of excitation to the flow field, an energy pulse from a Q-switched Nd:YAG laser was focused in the center of the jet exit, creating induced optical breakdown of air. The resulting flow field (as well as the unperturbed flow) was analyzed with schlieren photography and partcle image velocimetry. Analysis of phase averaged schlieren images suggested that the resulting blast wave from the laser pulse disrupted the structure of the barrel shock and Mach disk. The two-component velocity field data revealed that the excitation pulse also caused a perturbation to the jet shear layer which followed in the wake of the blast wave.

Original languageEnglish (US)
Title of host publication47th AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition
StatePublished - Dec 1 2009
Event47th AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition - Orlando, FL, United States
Duration: Jan 5 2009Jan 8 2009

Publication series

Name47th AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition

Other

Other47th AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition
CountryUnited States
CityOrlando, FL
Period1/5/091/8/09

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ASJC Scopus subject areas

  • Space and Planetary Science
  • Aerospace Engineering

Cite this

Lazar, E., Elliott, G. S., & Glumac, N. G. (2009). Energy deposition applied to a transverse jet in a supersonic crossflow. In 47th AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition [2009-1534] (47th AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition).