Experimental investigation of helium injection in a hypersonic turbulent boundary layer

Dipankar Sahoo, Parthav Desai, Alexander J. Smits

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

1 Scopus citations

Abstract

Results are presented on the effects of helium in a hypersonic turbulent boundary layer. Helium is injected at sonic speed through a spanwise slot upstream of the measurement location in a fully developed Mach 7.2 turbulent boundary layer. Particle image velocimetry and infrared thermography techniques are used to measure the velocity and temperature fields, respectively. Preliminary results for the mean and turbulent flow field along with the temperature field are presented. The mean field measurements are compared with earlier Pitot tube data and the differences may be due to the assumptions made regarding the fluid properties of the air/injected gas mixture, or due to spanwise variations that remain to be explored.

Original languageEnglish (US)
Title of host publication48th AIAA Aerospace Sciences Meeting Including the New Horizons Forum and Aerospace Exposition
PublisherAmerican Institute of Aeronautics and Astronautics Inc.
ISBN (Print)9781600867392
DOIs
StatePublished - 2010

Publication series

Name48th AIAA Aerospace Sciences Meeting Including the New Horizons Forum and Aerospace Exposition

All Science Journal Classification (ASJC) codes

  • Aerospace Engineering

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    Sahoo, D., Desai, P., & Smits, A. J. (2010). Experimental investigation of helium injection in a hypersonic turbulent boundary layer. In 48th AIAA Aerospace Sciences Meeting Including the New Horizons Forum and Aerospace Exposition [2010-1559] (48th AIAA Aerospace Sciences Meeting Including the New Horizons Forum and Aerospace Exposition). American Institute of Aeronautics and Astronautics Inc.. https://doi.org/10.2514/6.2010-1559