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Multidimensional Measurements of Turbulent Boundary Layer Including Scattered Particles Using PIV Technique

[+] Author Affiliations
Yoshiki Sugawara, Takahiro Tsukahara, Yasuo Kawaguchi

Tokyo University of Science, Noda, Japan

Paper No. AJKFluids2015-32390, pp. V01AT32A004; 6 pages
doi:10.1115/AJKFluids2015-32390
From:
  • ASME/JSME/KSME 2015 Joint Fluids Engineering Conference
  • Volume 1A: Symposia, Part 2
  • Seoul, South Korea, July 26–31, 2015
  • Conference Sponsors: Fluids Engineering Division
  • ISBN: 978-0-7918-5721-3
  • Copyright © 2015 by JSME

abstract

Although many experimental researches on solid-gas flows have been conducted, the involved stress balance problem has not been elucidated. To have a deep investigation of the stress balance in gas flow with entrained solid particles, this study conducts particle image velocimetry (PIV) experiment on a horizontal turbulent boundary layer. In the experiment, air and micro-scale glass beads are chosen as the gas phase and solid particles, respectively. The velocities of both air and solid particles are obtained simultaneously based on the acquired images and by image processing; each term of the stress balance equation is calculated and the influences of solid particles are analyzed. Based on the experiment results, the dominant term of the stress in the solid-gas flow as well as the influence of the solid particles on the stress distributions are identified.

Copyright © 2015 by JSME

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