NDLI: Numerical Study of Hydrodynamic Forces on a Submarine Piggyback Pipeline Under Wave Action

Content Provider	The American Society of Mechanical Engineers (ASME) Digital Collection
Author	Cheng, Xiaofei Wang, Yongxue Ren, Bing Wang, Guoyu
Copyright Year	2012
Abstract	In the paper, a 2D numerical model is established to simulate the hydrodynamic forces on a submarine piggyback pipeline under regular wave action. The two-dimensional Reynolds-averaged Navier-Stokes equations with a κ-ω turbulence model closure are solved by using a three-step Taylor-Galerkin finite element method (FEM). A Computational Lagrangian-Eulerian Advection Remap Volume of Fluid (CLEAR-VOF) method is employed to simulate free surface problems, which is inherently compatible with unstructured meshes and finite element method. The numerical results of in-line force and lift (transverse) force on the piggyback pipeline for e/D = G/D = 0.25 and KC = 25.1 are compared with physical model test results, which are conducted in a marine environmental flume in the State Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology, China. It is indicated that the numerical results coincide with the experimental results and that the numerical model can be used to predict the hydrodynamic forces on the piggyback pipeline under wave action. Based on the numerical model, the surface pressure distribution and the motion of vortices around the piggyback pipeline for e/D = G/D = 0.25, KC = 25.1 are investigated, and a characteristic vortex pattern around the piggyback pipeline denoted “anti-phase-synchronized” pattern is recognized.
Sponsorship	Ocean, Offshore and Arctic Engineering Division
Starting Page	177
Ending Page	183
Page Count	7
File Format	PDF
ISBN	9780791844908
DOI	10.1115/OMAE2012-83214
Volume Number	Volume 3: Pipeline and Riser Technology
Conference Proceedings	ASME 2012 31st International Conference on Ocean, Offshore and Arctic Engineering
Language	English
Publisher Date	2012-07-01
Publisher Place	Rio de Janeiro, Brazil
Access Restriction	Subscribed
Subject Keyword	Piggyback pipeline Pressure distribution Vortex pattern Regular wave Numerical study Fluid-dynamic forces Pipelines Pressure Waves Underwater vehicles Vortices
Content Type	Text
Resource Type	Article

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