Correlations in the Near-Field of a complex supersonic jet using time-resolved schlieren imaging

Andrew Tenney, Thomas J. Coleman, Jacques Lewalle, Mark Glauser, Sivaram Gogineni

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

1 Scopus citations

Abstract

Supersonic flow from a three-stream non-axisymmetric jet is visualized using time resolved schlieren photography (up to 400,000 frames per second) while pressure on the aft deck plate of the nozzle is simultaneously sampled using kulites. Time series are constructed using the schlieren photographs and conditioned to reduce the effects of signal drift where necessary. The effect of conditioning on the frequency content of the signals and the results of multiple signal cross correlations is examined. Signals constructed from individual points in a spatially down-sampled representation of the flow field are cross-correlated with a reference point, and trends in the subsequent visualization of information propagation in the flow are noted. This process is repeated for band-pass filtered signals to separate the modes of propagation of individual frequency bands.

Original languageEnglish (US)
Title of host publicationAIAA SciTech Forum - 55th AIAA Aerospace Sciences Meeting
PublisherAmerican Institute of Aeronautics and Astronautics Inc.
ISBN (Electronic)9781624104473
DOIs
StatePublished - 2017
Event55th AIAA Aerospace Sciences Meeting - Grapevine, United States
Duration: Jan 9 2017Jan 13 2017

Publication series

NameAIAA SciTech Forum - 55th AIAA Aerospace Sciences Meeting

Other

Other55th AIAA Aerospace Sciences Meeting
Country/TerritoryUnited States
CityGrapevine
Period1/9/171/13/17

ASJC Scopus subject areas

  • Aerospace Engineering

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