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CFD Analysis of Vortex Shedding in a Circular Cylinder: Flow Induced Vibration Design

[+] Author Affiliations
Nadeem Ahmed Sheikh, M. Anwar Khan, Shahab Khushnood

University of Engineering and Technology, Taxila, Pakistan

M. Afzaal Malik

National University of Sciences and Technology, Rawalpindi, Pakistan

Arshad Hussain Qureshi

University of Engineering and Technology, Lahore, Pakistan

Paper No. ICONE14-89812, pp. 289-296; 8 pages
doi:10.1115/ICONE14-89812
From:
  • 14th International Conference on Nuclear Engineering
  • Volume 3: Structural Integrity; Nuclear Engineering Advances; Next Generation Systems; Near Term Deployment and Promotion of Nuclear Energy
  • Miami, Florida, USA, July 17–20, 2006
  • Conference Sponsors: Nuclear Engineering Division
  • ISBN: 0-7918-4244-4 | eISBN: 0-7918-3783-1
  • Copyright © 2006 by ASME

abstract

Flow past a blunt body, such as a circular cylinder, usually experiences boundary layer separation and very strong flow oscillations in the wake region behind the body at a discrete frequency that is correlated to the Reynolds number of the flow. The periodic nature of the vortex shedding phenomenon can sometimes lead to unwanted structural vibrations. The effect of vibrating instability of a single cylinder is investigated in a uniform flow using the power of computational methods. Fluid structure coupling procedure predicts the fluid forces responsible for structural vibrations. An implicit approach to the solution of the unsteady two-dimensional Navier-Stokes equations is used for computation of flow parameters. Calculations are performed in parallel using a domain re-meshing/deforming technique with efficient communication requirements. Results for the unsteady shedding flow behind a circular cylinder are presented with experimental comparisons, showing the feasibility of accurate, efficient, time-dependent estimation of shedding frequency and resulting vibrations.

Copyright © 2006 by ASME

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