...Proceedings of the Thirty-fourth (2024) International Ocean and Polar Engineering Conference Rhodes, Greece, June 16 21, 2024 Copyright © 2024 by the International Society of Offshore and Polar Engineers (ISOPE) ISBN 978-1-880653-78-4; ISSN 1098-6189 www.isope.org Numerical study on effect...

... boundary with a circular hole. Karri et al. (2012) studied the effect of circular hole diameter and stand-off distance on bubble jets. Liu et al. (2016) investigated the nonlinear interaction between a bubble and an air-backed plate with a circular hole. Cui et al. (2022) carried out an experimental study...

... for production wells were considered as variables. When the pump and heater with insulation were applied together, the production rate increased by about 3.68 times in comparison to the base case. Therefore, the combined insulation method developed for improving productivity was proven to be effective...

... ABSTRACT Compared to solar and wind energy, wave energy holds the advantage of high power density. However, its extraction efficiency is low, and the lack of sustained wave conditions has been a major constraint on the development of wave energy conversion technology. To seek more effective...

... of existing wharves and revetments and for liquefaction countermeasures in loading areas (Motonaga et al., 2016). The effectiveness of cement-based ground improvement method should be confirmed when the strength of the improved soil after 28 days is greater than or equal to the design standard strength...

... et al., 2020). Countermeasures are imperative for the repair of corroded pipelines. The application of composite materials for pipeline repair proves to be a viable approach, effectively enhancing the performance of pipelines with corrosion defects. This methodology not only prolongs the remaining...

... by crisis. While existing guidelines aim to ensure an effective emergency response, a review of past CM efforts reveals ethical challenges, particularly in complex environments. A complex environment is characterized by intricacy, interdependence, and unpredictability, such as an oil spill in a sensitive...

... investigated. This research intends to determine the effect of air lubrication on the hydrodynamic forces and moment experienced by a KVLCC2 vessel during manoeuvres in shallow water. To accomplish this objective, a series of experiments were undertaken to utilise a 1:45.714 scale model of a KVLCC2 vessel...

... is enabled only with surge motion, which is used to control the platform surge motion by tuning their frequency ratios. The fender elements of TMD are oriented in such a manner to ensure an effective transfer of the restoring and damping forces to the primary TLP structure. Numerical studies are carried out...

... of an acoustic black hole for marine applications. The proposed procedure combines a method for the evaluation of VEM properties of high-damping materials and the analysis of the parameters that control the ABH performance. The results show the effectiveness of the ABH in mitigating low-frequency (50 – 200 Hz...

...; the effectiveness of the proposed control method is verified by simulation. Introduction In order to develop marine resources and meet the social demand for resources; people gradually began to develop and utilize the ocean. The offshore engineering industry has also achieved considerable development...

... Abstract When a ship sails in a hostile sea, it is hard to avoid slamming pressure. In this paper, the slicing theory and MPS method are combined to study the impact pressure during water entry. Firstly, the effectiveness of the in-house solver MPS-SJTU is verified by a water-entry test...

... strain (TOKAI strain) to adopt the biosorption capability of LAB to reduce the amount of NO 3 -N in Kumamoto's water. Different incubation conditions are applied and concentrations of NO 3 -N of samples are measured. Several TOKAI strains have been found to be effective in reducing NO 3 -N...

... the probe system of Class B AIS, we plan to develop a processing tool to create an operation management book from AIS recorded data. Then, implementation of these utility tools and evaluation of its effectiveness have been studied. INTRODUCTION We focused attention on the AIS (Automatic Identification...

... availability in both short and long term, its cost structure, recovery and recycle options, as well as its positive effects on welding processes with different materials and varying gas blends. The study consists of a review of scientific articles, interviews with specialists in different companies, a review...

... ABSTRACT This paper proposes using modified pipe-in-pipe (PIP) system to mitigate vortex induced vibration (VIV). Numerical simulations are carried out to examine the effectiveness of the proposed method. Firstly, a semi-empirical oscillator model is developed and validated by an experimental...

..., China. ABSTRACT In this paper, the hydrodynamic performance of floating breakwaters in reducing wave transmission is investigated experimentally. The action of 2D regular waves is considered. Emphasis is given on the effect of the incident wave characteristics, the draft and the filler in the floating...

... Abstract High modulus columns have become general engineering practice in terms of liquefaction mitigation although their effectiveness has not been validated thoroughly by both case and numerical analyses. Besides, only total stress analyses that do not take excess pore water pressure...

... Abstract This research aims to determine the pattern of coastline changes in the northeastern coast of Bali due to erosion, since this area is important as archeologist zone and earn significant income for Karangasem regency from marine tourism activity, to determine the effectiveness...

... the tank are determined following existing recommendations. Two kinds of internal baffles are considered and their effectiveness is compared. Both Computational Fluid Dynamics (CFD) and Experimental Fluid Dynamics (EFD) approaches are used to assess the hydrodynamic effectiveness of the ART on roll motions...