Cabrera-Miranda, JM;
Paik, J-K;
(2019)
Two-phase flow induced vibrations in a marine riser conveying a fluid with rectangular pulse train mass.
Ocean Engineering
, 174
pp. 71-83.
10.1016/j.oceaneng.2019.01.044.
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Abstract
A riser conveys fluids from a subsea system to a host floater; however, oil and gas phases may alternate, increasing pipe's stress and damaging downstream facilities. This paper studies the nonlinear planar vibrations of a steel lazy wave riser excited by slug flow. The employed formulations comprise the Euler-Bernoulli beam model and the steady plug-flow model with a time-space-varying mass per unit length in the form of a rectangular pulse train. The equations are solved by a Runge-Kutta finite difference scheme and frequency-response curves are constructed for effective tension, curvature, usage factor and fatigue damage. The results offer a useful insight of the slugging frequencies and slug lengths that may receive attention during the design of risers.
Type: | Article |
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Title: | Two-phase flow induced vibrations in a marine riser conveying a fluid with rectangular pulse train mass |
Open access status: | An open access version is available from UCL Discovery |
DOI: | 10.1016/j.oceaneng.2019.01.044 |
Publisher version: | https://doi.org/10.1016/j.oceaneng.2019.01.044 |
Language: | English |
Additional information: | This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions. |
Keywords: | Steel lazy wave riser (SLWR), Curved pipe conveying fluid, Two-phase flow-induced vibration, Time-varying mass parametric vibration, Ultimate limit state (ULS), Cumulative fatigue damage |
UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Mechanical Engineering |
URI: | https://discovery.ucl.ac.uk/id/eprint/10067509 |
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