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Dependence of Lift Coefficient Clv on Reynolds Number and Surface Roughness and Its Possible Impact on SHEAR7 Prediction

[+] Author Affiliations
Shan Huang

Universities of Glasgow and Strathclyde, Glasgow, UK

Neil Kitney

BP Exploration, Sunbury on Thames, Middlesex, UK

Paper No. OMAE2009-79610, pp. 607-613; 7 pages
doi:10.1115/OMAE2009-79610
From:
  • ASME 2009 28th International Conference on Ocean, Offshore and Arctic Engineering
  • Volume 5: Polar and Arctic Sciences and Technology; CFD and VIV
  • Honolulu, Hawaii, USA, May 31–June 5, 2009
  • Conference Sponsors: Ocean, Offshore and Arctic Engineering Division
  • ISBN: 978-0-7918-4345-1 | eISBN: 978-0-7918-3844-0
  • Copyright © 2009 by ASME

abstract

An extensive literature review is carried out in order to ascertain the influence of Reynolds number and surface roughness on the lift coefficient Clv, which is one of the critical inputs to SHEAR7 VIV prediction. The effort is directed towards developing an understanding as to why, for bare pipes, SHEAR7 fatigue prediction looks reasonably good when compared with the laboratory test data, but its prediction appears to be considerably conservative when compared with the field measurements, particularly those measurements on large diameter drilling risers. Based upon the data collated, an empirical formula of Clv, together with its dependence on Reynolds number and surface roughness, is proposed.

Copyright © 2009 by ASME

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