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Keywords: numerically
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Proceedings Papers
Timothy Vervaet, Nicolas Quartier, Efrain Carpintero Moreno, Vasiliki Stratigaki, Peter Troch, Gael Verao Fernandez, Francesco Ferri
Paper presented at the The 33rd International Ocean and Polar Engineering Conference, June 19–23, 2023
Paper Number: ISOPE-I-23-102
... interaction factor wave basin belgium government impedance interaction coefficient numerically Proceedings of the Thirty-third (2023) International Ocean and Polar Engineering Conference Ottawa, Canada, June 19-23, 2023 Copyright © 2023 by the International Society of Offshore and Polar Engineers...
Proceedings Papers
Paper presented at the The 33rd International Ocean and Polar Engineering Conference, June 19–23, 2023
Paper Number: ISOPE-I-23-054
... to lower-fidelity engineering numerical models that can predict high-frequency wave loads with a sufficient degree of accuracy is important for the deployment of TLP technologies. While frequency domain BEM (Boundary Element Method) solvers can be used to calculate second-order diffraction forces (via...
Proceedings Papers
Paper presented at the The 30th International Ocean and Polar Engineering Conference, October 11–16, 2020
Paper Number: ISOPE-I-20-3107
... studies on this topic both experimentally and numerically. Sheridan et al. (1997) conducted experiments in a water channel to study the wake of a horizontal cylinder submerged beneath free surface with different submerged depths. They found that flow past a cylinder beneath free surface could generate...
Proceedings Papers
Paper presented at the The 29th International Ocean and Polar Engineering Conference, June 16–21, 2019
Paper Number: ISOPE-I-19-392
... ABSTRACT Rudders located in the stream accelerated by the propeller are prone to ventilation, which can undermine the turning ability of the vessel due to the loss of the rudder lift force. Such multiphase flow is a complex phenomenon, which is hard to numerically predict and control. The aim...
Proceedings Papers
Paper presented at the The 29th International Ocean and Polar Engineering Conference, June 16–21, 2019
Paper Number: ISOPE-I-19-387
... or may endanger the ship stability. Sloshing generates variously shaped waves that break, and jets and spraying after water impacts the wall. In the last twenty years, many approximate and complex numerical methods have been introduced in order to predict the loads that arise during sloshing (Temarel et...
Proceedings Papers
A Regression Analysis of Progressing Periodic Water Waves on Irrotational Flow Over a Horizontal Bed
Paper presented at the The 28th International Ocean and Polar Engineering Conference, June 10–15, 2018
Paper Number: ISOPE-I-18-567
... field quantities are represented in dimensionless forms and the required data are numerically calculated with a set of nonlinear equations formulated by tensor analysis. The set of equations is solved by Newton's method. Thus, a numerical method to determine the constants is also made. Unlike the other...
Proceedings Papers
Paper presented at the The 28th International Ocean and Polar Engineering Conference, June 10–15, 2018
Paper Number: ISOPE-I-18-196
... of buried pipes have been established. In this study, ILM was applied to RC pipe sitting on the ground; the situation was simulated by numerical analysis. The results showed that the stress state under loading could be analyzed accurately by assuming multi- linear springs under the pipe. In addition...
Proceedings Papers
Paper presented at the The 27th International Ocean and Polar Engineering Conference, June 25–30, 2017
Paper Number: ISOPE-I-17-675
... In the present investigation the strength of a grouted connection of a Wind Turbine in offshore structures is studied numerically. The grouted connection joins the substructure with the foundation of the wind turbine and is subjected to a bending moment that simulates the effect of the wind on the structure...
Proceedings Papers
Paper presented at the The 26th International Ocean and Polar Engineering Conference, June 26–July 2, 2016
Paper Number: ISOPE-I-16-094
... hydrodynamics. It is implemented into a computationally efficient numerical multi-body simulation program, which is flexible in geometry and dynamic load spectrum. It features a particle-based liquid model and provides time accurate hydrodynamic pressure results in three dimensions and 6 Degrees-of-Freedom...
Proceedings Papers
Paper presented at the The 26th International Ocean and Polar Engineering Conference, June 26–July 2, 2016
Paper Number: ISOPE-I-16-634
... standing waves and sloshing. Results are compared with theory where applicable and some interesting physical phenomena are identified. Introduction In developing a comprehensive numerical wave tank (NWT), the approach of the authors and collaborators has been to couple together a number of distinct...
Proceedings Papers
Paper presented at the The Twenty-fourth International Ocean and Polar Engineering Conference, June 15–20, 2014
Paper Number: ISOPE-I-14-350
... maneuvering is a dynamic phenomenon, a quasi-static approach has been used here to evaluate the hydrodynamic derivatives. A container ship (S 175 prototype) has been assessed for its maneuverability by numerically mimicking the conventional towing tank experiments such as straight line, rotating arm...
Proceedings Papers
Paper presented at the The Twenty-second International Offshore and Polar Engineering Conference, June 17–22, 2012
Paper Number: ISOPE-I-12-437
... ABSTRACT: In this paper, the sloshing effect on the roll motion of a two-dimensional rectangular box in regular waves is studied experimentally and numerically. First, we carry out experiments for a rectangular model with different filling ratios in a 2D flume. The roll motion is measured...
Proceedings Papers
Paper presented at the The Twenty-second International Offshore and Polar Engineering Conference, June 17–22, 2012
Paper Number: ISOPE-I-12-529
... lifetime may be by the reduction of their vibration amplitudes by optimization based designs which take into account viscoelastic materials. rio de janeiro efficiency rotation matrix numerically reduction experimentally matrix sandwich structure catenary riser plane extremity geometry...
Proceedings Papers
Paper presented at the The Twenty-first International Offshore and Polar Engineering Conference, June 19–24, 2011
Paper Number: ISOPE-I-11-260
... ABSTRACT: In this paper, the starting flow and steady flow past a circular cylinder placed near a planar boundary are investigated both experimentally and numerically. Two cylinders, of diameter D =38 mm and D =25 mm, are used at distances G = 0, 2, 4, 6, 10, 20 mm from a planar boundary...
Proceedings Papers
Paper presented at the The Twentieth International Offshore and Polar Engineering Conference, June 20–25, 2010
Paper Number: ISOPE-I-10-110
... ABSTRACT Second-order wave effect on hydrodynamic forces acting on offshore structures is numerically investigated with focus on multi-body hydrodynamic interactions by using finite element method in time domain. Boundary value problems were formulated up to second order according to Stokes...
Proceedings Papers
Paper presented at the The Twentieth International Offshore and Polar Engineering Conference, June 20–25, 2010
Paper Number: ISOPE-I-10-287
... considers undertow and the shear stress just on the top of the bottom, the former is described by a simple ad-hoc method (by Lynett, wave breaking velocity effects in depth-integrated models. Coastal Engineering, 2006, 53(4):325–333.) while the latter is considered by numerically solving Wave Bottom...
Proceedings Papers
Paper presented at the The Eighteenth International Offshore and Polar Engineering Conference, July 6–11, 2008
Paper Number: ISOPE-I-08-143
... Numerical predictions of flow structure for a circular cylinder with exterior surface dimples Jongmyung Park, Chi-Ho Yoon, Yong-Chan Park, and Young-Ju Kim Korea Institute of Geoscience and Mineral Resources, KIGAM Daejeon, Korea ABSTRACT Water flow around a circular cylinder with exterior surface...
Proceedings Papers
Paper presented at the The Seventeenth International Offshore and Polar Engineering Conference, July 1–6, 2007
Paper Number: ISOPE-I-07-153
... storm condition. Pore pressure accumu- lation and pipeline movement during cyclic loading caused by waves and currents are numerically investigated. Both drag and lift forces are numerically obtained for 100 years return period storm condition using the Fourier decomposition method. Pipeline movement...
Proceedings Papers
Paper presented at the The Sixteenth International Offshore and Polar Engineering Conference, May 28–June 2, 2006
Paper Number: ISOPE-I-06-364
... ABSTRACT We numerically studied tsunami propagation characteristics through Korean Straits based on nonlinear shallow water equation, a robust wave driver of the near field tsunamis. Tsunamis are presumed to be generated by the earthquake in Tsuhima-Koto fault line. The magnitude of earthquake...
Proceedings Papers
Paper presented at the The Sixteenth International Offshore and Polar Engineering Conference, May 28–June 2, 2006
Paper Number: ISOPE-I-06-038
... estimation. Numerical results are examined to give some insight into the physical effects driving the increased of damage with respect to the soil vertical stiffness. Finally, trench formation is studied numerically. Comparisons between existing theories are provided. INTRODUCTION Pipe-soil interaction...
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