Blind predictions of laboratory measurements of vortex-induced vibrations of a tension riser

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Blind predictions of laboratory measurements of vortex-induced vibrations of a tension riser

Chaplin, J.R. / Bearman, P.W. / Cheng, Y. / Fontaine, E. / Graham, J.M.R. / Herfjord, K. / Huera Huarte, F.J. / Isherwood, M. / Lambrakos, K. / Larsen, C.M. / ... [more]

Abstract

This paper compares laboratory measurements of the vortex-induced vibrations of a riser in a stepped current with blind predictions obtained with 11 different numerical models. Results are included on in-line and transverse displacements and curvatures, and dominant frequencies. In general, empirical models were more successful at predicting cross-flow displacements and curvatures than current codes based on CFD. Overall ratios between predictions and measurements of cross-flow displacements were around 95 % and 75 %, respectively. Predictions of cross-flow curvatures were more scattered, and almost all were unconservative. In-line vortex-induced curvatures, which may cause as much damage as cross-flow curvatures, could not be computed by any of the empirically based codes, and in general those based on CFD were in very poor agreement with the measurements.

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Document information

Title :

Blind predictions of laboratory measurements of vortex-induced vibrations of a tension riser

Additional title:

Blindvorhersagen von Labormessungen strömungsinduzierter Vibrationen einer Steigleitung

Contributors:

Chaplin, J.R. (author) / Bearman, P.W. (author) / Cheng, Y. (author) / Fontaine, E. (author) / Graham, J.M.R. (author) / Herfjord, K. (author) / Huera Huarte, F.J. (author) / Isherwood, M. (author) / Lambrakos, K. (author) / Larsen, C.M. (author)

Published in:

FIV, International Conference on Fluid-Induced Vibrations, 8 ; 25-40

Journal of Fluids and Structures ; 21 , 1

Publication date :

2005

Size :

16 Seiten, 11 Bilder, 2 Tabellen, 27 Quellen

ISSN :

0889-9746

DOI :

https://doi.org/10.1016/j.jfluidstructs.2005.05.016

Type of media :