Comparison of time-averaged supersonic jet profile acquired by particle image velocimetry and shadowgraph velocimetry using single pixel ensemble correlation

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

2 Citations (Scopus)

Abstract

The particle image velocimetry (PIV) measurement and shadowgraph velocimetry of the supersonic jet was conducted to investigate the convective velocity of the large scale structure in the shear layer. The Mach number was 2.0, the Reynolds number based on the diameter of the nozzle exit was 1.0×106. The single pixel ensemble correlation method (Westerweel et al., 2003) was applied to the PIV and shadowgraph images to obtain averaged velocity field with fine spatial resolution. The axial velocity calculated from shadowgraph image is about 0.7 times that of PIV. The velocity calculated from shadowgraph image is in good agreement with the estimated velocity which is calculated from screech frequency and the shock cell length by the Powell’s model.

Original languageEnglish
Title of host publicationAIAA Scitech 2019 Forum
PublisherAmerican Institute of Aeronautics and Astronautics Inc, AIAA
ISBN (Print)9781624105784
DOIs
Publication statusPublished - 2019 Jan 1
EventAIAA Scitech Forum, 2019 - San Diego, United States
Duration: 2019 Jan 72019 Jan 11

Publication series

NameAIAA Scitech 2019 Forum

Conference

ConferenceAIAA Scitech Forum, 2019
CountryUnited States
CitySan Diego
Period19/1/719/1/11

ASJC Scopus subject areas

  • Aerospace Engineering

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