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The Response of an Elastically Mounted Rigid Cylinder Subjected to Vortex Shedding and Support Motion

[+] Author Affiliations
Luiz F. N. Soares, Juan B. V. Wanderley, Marcelo Vitola, Sergio H. Sphaier, Carlos Levi

LabOceano, Rio de Janeiro, RJ, Brazil

Paper No. OMAE2010-20091, pp. 393-400; 8 pages
doi:10.1115/OMAE2010-20091
From:
  • ASME 2010 29th International Conference on Ocean, Offshore and Arctic Engineering
  • 29th International Conference on Ocean, Offshore and Arctic Engineering: Volume 6
  • Shanghai, China, June 6–11, 2010
  • Conference Sponsors: Ocean, Offshore and Arctic Engineering Division
  • ISBN: 978-0-7918-4914-9 | eISBN: 978-0-7918-3873-0
  • Copyright © 2010 by ASME

abstract

The vortex induced vibration (VIV) on a circular cylinder is investigated by the numerical solution of the two-dimensional Reynolds average Navier-Stokes equations. An upwind and Total Variation Diminishing (TVD) conservative scheme is used to solve the governing equations written in curvilinear coordinates and the k–ε turbulence model is used to simulate the turbulent flow in the wake of the body. The cylinder is supported by a spring and a damper and free to vibrate in the transverse direction. Results are obtained for the phase angle, amplitude, and frequency for an elastically mounted rigid cylinder subjected to vortex shedding and support motion. The numerical results showed the strong influence of the support motion on the response amplitude. This kind of scenario is found in the attachment between platform and riser. The motion of platforms on the ocean free surface can cause this kind of excitation and amplify the vortex induced vibration response amplitude of risers.

Copyright © 2010 by ASME

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