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Research Papers: Piper and Riser Technology

Prediction of Vortex-Induced Vibration Response of a Pipeline Span by Coupling a Viscous Flow Solver and a Beam Finite Element Solver

[+] Author and Article Information
Juan P. Pontaza

Innovation, Research & Development,
Shell International Exploration and
Production Inc.,
Shell Technology Center Houston,
Houston, TX 77082
e-mail: juan.pontaza@shell.com

Raghu G. Menon

Projects and Engineering Services,
Shell India Markets Pvt. Ltd.,
Shell Technology Center Bangalore,
Bangalore, India 560048

1Corresponding author.

Contributed by the Ocean, Offshore, and Arctic Engineering Division of ASME for publication in the JOURNAL OF OFFSHORE MECHANICS AND ARCTIC ENGINEERING. Manuscript received May 24, 2010; final manuscript received November 17, 2012; published online May 24, 2013. Assoc. Editor: Charles Dalton.

J. Offshore Mech. Arct. Eng 135(3), 031702 (May 24, 2013) (9 pages) Paper No: OMAE-10-1047; doi: 10.1115/1.4023789 History: Received May 24, 2010; Revised November 17, 2012

This paper describes a fluid-structure interaction (FSI) modeling approach to predict the vortex-induced vibration response of a pipeline span by coupling a three-dimensional viscous incompressible Navier–Stokes solver with a beam finite element solver in time domain. The pipeline span is modeled as an Euler–Bernoulli beam subject to instantaneous flow-induced forces and solved using finite element basis functions in space and an unconditionally stable Newmark-type discretization scheme in time. At each time step, the instantaneous incremental displacement is fed back to the fluid flow solver, where the position of the pipeline is updated to compute the resulting instantaneous flow field and associated flow-induced forces. Numerical predictions from the FSI model are compared to current tank experimental measurements of a pipeline span subject to uniform free-stream currents.

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References

Figures

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Fig. 1

Verification of second order convergence in velocities and pressure for flow solver

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Fig. 2

Verification of second order convergence in displacement and velocity for structural solver

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Fig. 3

Schematic of fluid-structure coupling procedure

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Fig. 4

Computational domain and mesh for the L/D = 58 pipe. Three different views of surface slices composing the volume mesh are shown. Scale in the plot is X:Y:Z = 1:1:0.5.

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Fig. 5

Current tank experimental setup of Lee et al. [11]

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Fig. 6

RMS of in-line and cross-flow response (normalized by pipe diameter) for varying reduced velocity at the pipeline midspan (z = L/2)

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Fig. 7

Phase plots of X-Y trajectories at z = L/2 for different reduced velocities. Motion goes from almost purely in-line, to crescent moon-shaped, to figure-of-eight shaped.

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Fig. 8

RMS of in-line and cross-flow forces at the pipeline midspan (z = L/2) for varying reduced velocity

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Fig. 10

Instantaneous vorticity contours at minimum and maximum cross-flow midspan (z = L/2) displacement

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Fig. 9

Instantaneous vorticity contours for reduced velocity, U*=6. Spanwise and streamwise cuts showing vortex shedding along the span of the pipe.

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Fig. 11

Comparison of predicted and experimentally measured RMS values of in-line and cross-flow displacement

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Fig. 12

Comparison of predicted (left column) and experimentally measured (right column) X-Y trajectories (at midspan, z = L/2) for selected reduced velocities

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Fig. 13

Comparison of predicted and experimentally measured response frequency

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