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100-khz burst-mode particle image velocimetry: Space-time correlations and considerations for spatial and temporal resolution

  • Joseph D. Miller
  • , James R. Gord
  • , Terrence R. Meyer
  • , Naibo Jiang
  • , Daniel Thule
  • , Mikhail N. Slipchenko
  • , Jason G. Mance
  • , Sukesh Roy

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

100-kHz particle image velocimetry is demonstrated using a double-pulsed burst-mode laser with record length of 100 ms. Pulse doublets with inter-pulse spacing of 1-5 μs and repetition rate of 100 kHz are generated using a fiber-based oscillator and amplified through an all-diode pumped burst-mode amplifier. Pre-compensation of oscillator pulse width and pulse intensity enable control of output pulse energy even for unequally spaced pulse sequences. Spatial and temporal resolution of the velocity measurements is quantified and demonstrated to be sufficient for investigating space-time correlations in highly turbulent diffusion jets with jet-diameter Reynold’s Numbers from 14,000-43,000. Quantitative assesments of standard integral time and length scale definitions are made along with highly resolved space-time correlations and compared with Taylor’s Frozen Turbulence Hypothesis for turbulent flows.

Original languageEnglish (US)
Title of host publication54th AIAA Aerospace Sciences Meeting
PublisherAmerican Institute of Aeronautics and Astronautics Inc, AIAA
ISBN (Print)9781624103933
StatePublished - 2016
Externally publishedYes
Event54th AIAA Aerospace Sciences Meeting, 2016 - San Diego, United States
Duration: Jan 4 2016 → Jan 8 2016

Publication series

Name54th AIAA Aerospace Sciences Meeting
Volume0

Other

Other54th AIAA Aerospace Sciences Meeting, 2016
Country/TerritoryUnited States
CitySan Diego
Period1/4/16 → 1/8/16

Bibliographical note

Publisher Copyright:
© 2016, American Institute of Aeronautics and Astronautics Inc, AIAA. All rights reserved.

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