Applied Scientific Research

, Volume 49, Issue 1, pp 101–115 | Cite as

Roughness and turbulence intensity effects on the induced flow oscillation of a single cylinder

  • B. A. Jubran
  • M. N. Hamdan
  • B. O. Al Bedoor
Article
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Abstract

The effects of the surface roughness and the turbulence intensity on the dynamic characteristics of the flow induced oscillations of an elastically supported single circular cylinder in a cross flow in the vortex shedding and fluid elastic regions were experimentally investigated. The results of these experiments indicate that, for the vortex shedding region, increasing the surface roughness results in a reduction of the amplitude of oscillation, while in the fluid elastic region, increasing the surface roughness tends to enhance the oscillations. A similar trend for the dynamic response of the cylinder in the vortex shedding region was also observed when the free stream turbulence intensity was varied, while in the fluid elastic region variations in the free stream turbulence intensity were observed to have no drastic effect on the dynamic response of the cylinder.

Keywords

Vortex Surface Roughness Dynamic Response Region Variation Dynamic Characteristic 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.
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Copyright information

© Kluwer Academic Publishers 1992

Authors and Affiliations

  • B. A. Jubran
    • 1
  • M. N. Hamdan
    • 1
  • B. O. Al Bedoor
    • 1
  1. 1.Mechanical Engineering DepartmentUniversity of JordanAmmanJordan

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