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Effect of Pulsations on the Wake Structure of a Circular Cylinder

[+] Author Affiliations
Efstathios Konstantinidis, Stavroula Balabani, Michael Yianneskis

King’s College London, London, UK

Paper No. IMECE2002-32165, pp. 237-248; 12 pages
doi:10.1115/IMECE2002-32165
From:
  • ASME 2002 International Mechanical Engineering Congress and Exposition
  • 5th International Symposium on Fluid Structure Interaction, Aeroelasticity, and Flow Induced Vibration and Noise
  • New Orleans, Louisiana, USA, November 17–22, 2002
  • Conference Sponsors: Applied Mechanics Division
  • ISBN: 0-7918-3659-2 | eISBN: 0-7918-1691-5, 0-7918-1692-3, 0-7918-1693-1
  • Copyright © 2002 by ASME

abstract

The effect of flow perturbations (sinusoidal pulsations) on the wake structure of a circular cylinder in turbulent crossflow has been studied by means of LDA measurements along the wake axis. The results show the variation of the extent of the recirculation bubble and vortex formation regions and the longitudinal distance of the vortices in the von Kármán street with pulsation frequency and amplitude within the lock-on range.

Copyright © 2002 by ASME

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