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Keywords: cylinder
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Proceedings Papers

Paper presented at the The Fourteenth ISOPE Pacific/Asia Offshore Mechanics Symposium, November 22–25, 2020
Paper Number: ISOPE-P-20-102
... This paper proposes an analytic method to solve the wave diffraction problem on the vertical cylinder with the cross-section of arbitrary shape by using conformal transformation. The derivation solution was formulated in this paper, and results were compared with those of numerical methods...
Proceedings Papers

Paper presented at the The Thirteenth ISOPE Pacific/Asia Offshore Mechanics Symposium, October 14–17, 2018
Paper Number: ISOPE-P-18-007
... ABSTRACT Sinusoidal motion of a cylinder in viscous flow has been extensively studied in the past decades. Distinction of flow patterns exists between cylinders in cross-flow freedom restricted and freely vibrating conditions when experiencing oscillatory flow. In this paper, a series...
Proceedings Papers

Paper presented at the The Thirteenth ISOPE Pacific/Asia Offshore Mechanics Symposium, October 14–17, 2018
Paper Number: ISOPE-P-18-118
... is generated by operating the boom cylinder which enables up and down movement of the trenching cutter or by the propulsive force of the track. This contact force applied to trenching cutter for trenching work should be maintained properly because when this force is excessive or insufficient, the trenching...
Proceedings Papers

Paper presented at the The Thirteenth ISOPE Pacific/Asia Offshore Mechanics Symposium, October 14–17, 2018
Paper Number: ISOPE-P-18-100
... ABSTRACT Numerical simulations are performed for the dynamic responses of two identical square cylinders in tandem arrangement oscillating separately in steady current. The results are presented based on a spacing ratio ( L/B ) ranging from 1.5 to 4 and a reduced velocity ( V r ) ranging from...
Proceedings Papers

Paper presented at the The Thirteenth ISOPE Pacific/Asia Offshore Mechanics Symposium, October 14–17, 2018
Paper Number: ISOPE-P-18-091
... force wave force numerical model water depth wave-induced force equation element method investigation numerical investigation velocity potential interaction submerged plate wave amplitude hobem variation horizontal force cylinder time series Numerical investigation of wave-current...
Proceedings Papers

Paper presented at the The Thirteenth ISOPE Pacific/Asia Offshore Mechanics Symposium, October 14–17, 2018
Paper Number: ISOPE-P-18-024
... ABSTRACT This paper focuses on the inline force and bow wave height on a surface-piercing vertical cylinder moving at a constant forward speed in calm water and in waves. A Computational Fluid Dynamics (CFD) model has been developed using Caelus ® open source code. A stationary mesh...
Proceedings Papers

Paper presented at the The Thirteenth ISOPE Pacific/Asia Offshore Mechanics Symposium, October 14–17, 2018
Paper Number: ISOPE-P-18-062
... ABSTRACT In this paper, a circular cylinder attached by a pair of fin-shaped strips is proposed with intent to harvest hydrokinetic energy. It is found via numerical simulations of fluid-structure interaction that vortex-induced vibration and galloping occur back-to-back by placing the strips...
Proceedings Papers

Paper presented at the The Twelfth ISOPE Pacific/Asia Offshore Mechanics Symposium, October 4–7, 2016
Paper Number: ISOPE-P-16-001
... approach cylinder isope discretization boundary condition artificial intelligence translation offshore reservoir simulation simulation rectangular box horizontal cylinder test case setup Floating Body Wave Interaction Simulation using a Lagrangian Approach André Baeten Augsburg University...
Proceedings Papers

Paper presented at the The Twelfth ISOPE Pacific/Asia Offshore Mechanics Symposium, October 4–7, 2016
Paper Number: ISOPE-P-16-051
...) studied wave radiation and diffraction problems for a two-dimensional submerged circular cylinder in frequency domain. Wu and Eatock Taylor (1990) developed a new mathematical formulation based on a perturbation series in terms of forward speed and the hydrodynamic force can be directly obtained without...
Proceedings Papers

Paper presented at the The Twelfth ISOPE Pacific/Asia Offshore Mechanics Symposium, October 4–7, 2016
Paper Number: ISOPE-P-16-112
... Abstract In this study, three-dimensional numerical simulations are performed to study the VIV of two side-by-side cylinders of different diameters in a steady flow. The two cylinders are rigidly connected together and elastically mounted as a single body. The main aim of the study...
Proceedings Papers

Paper presented at the The Twelfth ISOPE Pacific/Asia Offshore Mechanics Symposium, October 4–7, 2016
Paper Number: ISOPE-P-16-113
... Abstract The flow around a circular cylinder at Reynolds numbers near the drag crisis was numerically simulated based on a dynamic Smagorinsky Large Eddy Simulation (LES) model at two Reynolds of Re = 1.0 × 10 5 and 6.0 × 10 5 . The flow structures and the hydrodynamic force on the cylinder...
Proceedings Papers

Paper presented at the The Twelfth ISOPE Pacific/Asia Offshore Mechanics Symposium, October 4–7, 2016
Paper Number: ISOPE-P-16-055
... Abstract Two-dimensional numerical simulations are conducted to examine the effects of tripping wires on the hydrodynamic properties of a stationary cylinder in uniform and shear flows at a fixed Reynolds number of 100. Three sets of numerical tests are carried out: symmetric and asymmetric...
Proceedings Papers

Paper presented at the The Twelfth ISOPE Pacific/Asia Offshore Mechanics Symposium, October 4–7, 2016
Paper Number: ISOPE-P-16-024
... Abstract A finite volume method based Cartesian grids is adopted to solve the Navier-Stokes equations using Improved Delayed Detached Eddy Simulation turbulence model with OpenFOAM for the study the 3D evolution as a large depression internal solitary wave propagates across a vertical cylinder...
Proceedings Papers

Paper presented at the The Twelfth ISOPE Pacific/Asia Offshore Mechanics Symposium, October 4–7, 2016
Paper Number: ISOPE-P-16-137
... Hydrodynamic Forces of a Yawed Square Cylinder in Oscillating Flows Xiaofan Lou, Tongming Zhou and Liang Cheng School of Civil, Environmental and Mining Engineering, The University of Western Australia Crawley, WA, Australia ABSTRACT The effect of yaw angle on hydrodynamic forces of a yawed square...
Proceedings Papers

Paper presented at the The Twelfth ISOPE Pacific/Asia Offshore Mechanics Symposium, October 4–7, 2016
Paper Number: ISOPE-P-16-019
... the normal velocity and pressure at the interfaces of open water regions and cylinder region, the macro-scale scattering (wave reflection and transmission) can be predicted based on micro-scale dynamics between piles efficiently. Introduction Very large scale floating structures (VLFSs) supported by small...
Proceedings Papers

Paper presented at the The Twelfth ISOPE Pacific/Asia Offshore Mechanics Symposium, October 4–7, 2016
Paper Number: ISOPE-P-16-165
... (represented by a circular cylinder) laid on an uneven seabed, mimicking a situation where the pipeline is partially embedded at certain locations, while free spanned at other locations. In the present numerical simulations, the circular cylinder has a diameter of D and a length of 9D, with seven sections...
Proceedings Papers

Paper presented at the The Eleventh ISOPE Pacific/Asia Offshore Mechanics Symposium, October 12–14, 2014
Paper Number: ISOPE-P-14-086
... Abstract In this study, a one-dimensional experimental study for the influence of clayey soils on wave-induced liquefaction was reported. The one- dimensional facility was set-up with a vertical cylinder and a 1.8 m thick deposit and 0.2 m thick water above the deposit. Unlike the previous...
Proceedings Papers

Paper presented at the The Eleventh ISOPE Pacific/Asia Offshore Mechanics Symposium, October 12–14, 2014
Paper Number: ISOPE-P-14-090
... Abstract The three-dimensional effect of flow past bluff body poses difficult problems for simulation. The work here focuses on using high resolution TVD (total variation diminishing) numerical scheme to simulate the case of flow around a wall-mounted three-dimensional circular cylinder...
Proceedings Papers

Paper presented at the The Tenth ISOPE Pacific/Asia Offshore Mechanics Symposium, October 3–5, 2012
Paper Number: ISOPE-P-12-065
... ABSTRACT: A second order frequency-domain model implemented by a boundary element method was developed for wave elevation around structures. The diffraction of monochromatic waves by a square array of truncated cylinders and a simplified TLP was studied with this model, and the wave run up...
Proceedings Papers

Paper presented at the The Ninth ISOPE Pacific/Asia Offshore Mechanics Symposium, November 14–17, 2010
Paper Number: ISOPE-P-10-029
... was actualized by specifying velocity at the inlet and applying momentum loss as wave damper at the end of the wave tank. Volume-Of-Fluid (VOF) scheme was adopted to capture the air-water interface. Accuracy validation of numerical wave tank with truncated vertical circular cylinder had been accomplished...

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