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Keywords: model test
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Proceedings Papers

Paper presented at the The 33rd International Ocean and Polar Engineering Conference, June 19–23, 2023
Paper Number: ISOPE-I-23-283
... ABSTRACT This paper proposes a towed propulsion test method to evaluate vessel performance in ice. The paper also proposes a method to test two different ice flexural strengths in the two level ice channels and one presawn ice channel in a single ice sheet. Outcomes of the proposed model tests...
Proceedings Papers

Paper presented at the The 33rd International Ocean and Polar Engineering Conference, June 19–23, 2023
Paper Number: ISOPE-I-23-339
...-roll Tank (hereinafter ART) is applied to reduce the roll motion of a containership. In order to obtain roll damping characteristics and roll motion responses of the containership with and without ART, a model test was carried out including free decay and irregular wave conditions. Based on the results...
Proceedings Papers

Paper presented at the The 33rd International Ocean and Polar Engineering Conference, June 19–23, 2023
Paper Number: ISOPE-I-23-380
... methods and compares the evaluated motion responses to a method whereby the internal tanks are modelled using Boundary Element Method (BEM), and also compares against model test results. KEY WORDS: Free surface correction; sloshing; partially filled internal tanks; hydrodynamic analysis; roll center...
Proceedings Papers

Paper presented at the The 33rd International Ocean and Polar Engineering Conference, June 19–23, 2023
Paper Number: ISOPE-I-23-356
... simulation tool developed by NREL. The newly developed numerical wave basin tool has been successfully validated for the DeepCWind semisubmersible model tests in a test condition with irregular waves and steady wind. KEY WORDS: Computational Fluid Dynamics (CFD), Numerical Wave Basin, Offshore Floating...
Proceedings Papers

Paper presented at the The 33rd International Ocean and Polar Engineering Conference, June 19–23, 2023
Paper Number: ISOPE-I-23-366
..., performs extensive studies and model tests to determine the best technology for each new LNG carrier under construction. This involves simulating the ship's motions under various sea conditions and performing statistical analysis of the test results to propose the optimal containment system. This process...
Proceedings Papers

Paper presented at the The 33rd International Ocean and Polar Engineering Conference, June 19–23, 2023
Paper Number: ISOPE-I-23-407
... certain advantages in force and dissipation performance due to the two wave-reflection surfaces. Through physical model tests, the hydrodynamic characteristics of a comb-type floating breakwater fixed on a frame under regular waves, irregular waves and combined current and wave conditions are studied...
Proceedings Papers

Paper presented at the The 33rd International Ocean and Polar Engineering Conference, June 19–23, 2023
Paper Number: ISOPE-I-23-385
... motion are model test, CFD (Computational Fluid Dynamics) simulation technology, and full-scale observation. Full-scale observation method can provide guidance for the design of similar platforms. However, factors in the real environment are difficult to intervene, which makes it difficult to study...
Proceedings Papers

Paper presented at the The 33rd International Ocean and Polar Engineering Conference, June 19–23, 2023
Paper Number: ISOPE-I-23-375
.... The focus of this study is investigating the effect of the LNG tank on the LNG carrier s motion and wave drift forces. In order to investigate the effect of the LNG tank, a model test in waves of LNG carrier was conducted in the wave tank at Changwon National University with and without the LNG tank...
Proceedings Papers

Paper presented at the The 33rd International Ocean and Polar Engineering Conference, June 19–23, 2023
Paper Number: ISOPE-I-23-367
... of sloshing assessment of membrane LNG tanks on floating structures, sloshing model tests are performed in laboratory conditions at a scale of 1/40. These tests are performed on the platform of a hexapod apparatus whose estimated motion is based on down-scaled motions of the floating structure at full scale...
Proceedings Papers

Paper presented at the The 33rd International Ocean and Polar Engineering Conference, June 19–23, 2023
Paper Number: ISOPE-I-23-543
... and draft), and the lengthwise change of section shapes are captured by the 3D CNN approach. The image converted section shapes are studied by machine learning method (CNN) and adapted to the KRISO (Korea Research Institute of Ships and Ocean Engineering) model test results (residual resistance coefficient...
Proceedings Papers

Paper presented at the The 33rd International Ocean and Polar Engineering Conference, June 19–23, 2023
Paper Number: ISOPE-I-23-555
... calculation result ship net thrust wind speed united kingdom government social responsibility sustainable development wing sail mepc thrust matrix matrix model test coefficient sailing speed mathematical model Proceedings of the Thirty-third (2023) International Ocean and Polar Engineering...
Proceedings Papers

Paper presented at the The 33rd International Ocean and Polar Engineering Conference, June 19–23, 2023
Paper Number: ISOPE-I-23-587
... a little, because the acoustic equipment is covered with massive bubbles. This paper studies the flow through an opened hole on ship bottom by investigating the fluid movement in the opened hole in combination with the observations in model test. Analysis and practice show that in the outflow of the high...
Proceedings Papers

Paper presented at the The 33rd International Ocean and Polar Engineering Conference, June 19–23, 2023
Paper Number: ISOPE-I-23-114
... (2006) systematically studied the hydrodynamic characteristics of the floating frame system, netting system, counterweight system and the overall structure of the deep-water gravity cage based on the physical model test. Zhao et al. (2008) studied the hydrodynamic characteristics of plane net in waves...
Proceedings Papers

Paper presented at the The 33rd International Ocean and Polar Engineering Conference, June 19–23, 2023
Paper Number: ISOPE-I-23-117
... AQWA). The numerical model is a time domain model (i.e., Orcina OrcaFlex ). Its ship motion computation also bases on Boundary Element Method results. Additionally, the validation dataset from physical model tests is presented. In this validation dataset, different load masses are used to estimate...
Proceedings Papers

Paper presented at the The 33rd International Ocean and Polar Engineering Conference, June 19–23, 2023
Paper Number: ISOPE-I-23-139
...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 (ISOPE) ISBN 978-1-880653-80-7; ISSN 1098-6189 www.isope.org Numerical Analysis and Model Test...
Proceedings Papers

Paper presented at the The 33rd International Ocean and Polar Engineering Conference, June 19–23, 2023
Paper Number: ISOPE-I-23-292
... ABSTRACT In this paper, turning trial results in ice were compared with performance predicted from the model tests using a couple of test methods for an ARC7 LNG carrier. Because of the limited width of model basin, the turning circle is approximated from the measured track in the ice after...
Proceedings Papers

Paper presented at the The 33rd International Ocean and Polar Engineering Conference, June 19–23, 2023
Paper Number: ISOPE-I-23-296
... and model test are compared. It is obtained that: (1) the FEM/SPH coupling method is able to simulate the ship/ice/water coupling effect, (2) and the deviations of ice resistances obtained by numerical simulation are within 15%, which verify the effectiveness of this proposed coupling method. KEY WORDS...
Proceedings Papers

Paper presented at the The 33rd International Ocean and Polar Engineering Conference, June 19–23, 2023
Paper Number: ISOPE-I-23-042
... are used to approximate the restoring mechanism due to mooring system. The proposed empirical viscous correction works very well in comparison to the model tests of free decays in calm water. For the FOWT exposed to focus waves, significant low-frequency (LF) surge and pitch motions are observed...
Proceedings Papers

Paper presented at the The 33rd International Ocean and Polar Engineering Conference, June 19–23, 2023
Paper Number: ISOPE-I-23-515
... navigation. This article analyzes the hydrodynamic characteristics and establishes a maneuvering mathematical model of an Azimuth-Stern-Drive ship. The virtual captive model tests are carried out with straight, oblique towing, and static turning conditions by CFD software Star CCM+. The hydrodynamic forces...
Proceedings Papers

Paper presented at the The 33rd International Ocean and Polar Engineering Conference, June 19–23, 2023
Paper Number: ISOPE-I-23-537
... networks. The dataset came from deepwater ocean basin model test, which was conducted in State Key Laboratory of Ocean Engineering, Shanghai Jiao Tong University. The incident waves and motion were fed into neural networks to predict platform motion. The sensitivity of model hyperparameters were analyzed...

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