Blar i Department of Mechanical and Structural Engineering and Materials Science (TN-IMBM) på forfatter "Ong, Muk Chen"
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Numerical simulations of the sliding impact between an ice floe and a ship hull structure in ABAQUS
Zhang, Jianan; Liu, Zhenhui; Ong, Muk Chen; Tang, Wenyong (Peer reviewed; Journal article, 2022)This paper studies the hull structural responses of a steel grillage subjected to sliding ice loads, which have been rarely investigated in the literature. Sliding ice loads are modelled using nonlinear finite element ... -
Numerical Simulations of Turbulent Flow through Piping Systems
Jurga, Agata (Master thesis, 2022)Piping systems have a wide range of applications across many different industries. Pipelines are essential infrastructure in the offshore oil & gas installations. One of the key challenges when operating complicated piping ... -
Numerical Study of Oxygen Transport in Aquaculture Tanks With Different Geometries
Pollen, Trygve (Master thesis, 2022)The transport of dissolved oxygen concentration in water for aquaculture is a core parameter affecting the quality of yielded fish. An emerging shift from offshore to land-based aquaculture presents advan- tages to marine ... -
Numerical study of two typical Norwegian gravity-based fish cages with different cage shapes and weights
Mjåtveit, Magnus Aske (Master thesis, 2021)Fish cages usually have net deformation in marine environments, and this deformation can reduce the cultivation volume of the fish cage and thus reduce the fish welfare. Hence, it is necessary to understand the structural ... -
Numerical Study on Offshore Lifting Operations of a Subsea Spool
Parra, Carlos Andres (Masteroppgave/UIS-TN-IMBM/2018;, Master thesis, 2018-06)Within the scope of marine operations, offshore lifting operations present significant challenges due to the instability and harshness of environmental conditions. Therefore, lifting operations become expensive and risky. ... -
Numerical study on structural responses of gravity-based fish cages
Sim, Jaesub (Masteroppgave/UIS-TN-IMBM/2020;, Master thesis, 2020)The location of a fish farm is moving towards more exposed locations due to spatial and environmental concerns. As the fish farm moves to open seas, the structure of the fish farm would undergo increased environmental loads ... -
Numerical study on thermal effects in an electric subsea robotic actuator
Fjetland, Kotryna Bedrovaite (Masteroppgave/UIS-TN-IMBM/2020;, Master thesis, 2020-07-07)A remotely operated vehicle (ROV) is equipped with two robotic manipulators. Current manipulators are hydraulically actuated. The industry has uncovered the potential in replacing hydraulic-based technology with its ... -
Numerical study on vibratory extraction of offshore wind turbine monopile foundations under sandy seabed condition
Salahshour Langeroodi, Soheil; Ong, Muk Chen; Nematzadeh, Afrouz (Peer reviewed; Journal article, 2023)The wind industry has experienced a rapid growth in Europe over the last decades. The early generation turbines were designed for a life of 20–25 years. Decommissioning of offshore wind turbines is becoming more important ... -
An object-oriented method for fully coupled analysis of floating offshore wind turbines through mapping of aerodynamic coefficients
El Beshbichi, Omar; Xing, Yihan; Ong, Muk Chen (Peer reviewed; Journal article, 2021-07)This work presents a novel object-oriented approach to model the fully-coupled dynamic response of floating offshore wind turbines (FOWTs). The key features offered by the method are the following: 1) its structure naturally ... -
On the three-dimensional effects of the water entry of wedges
Wen, Xueliang; Ong, Muk Chen; Yin, Guang (Peer reviewed; Journal article, 2023-09)Three-dimensional (3D) effects on the total and spanwise slamming coefficients and the pressure reductions acting on the wedge surface during water entry are modeled in a unified manner. First, the water entry of wedges ... -
On the wake flow behind a sphere in a pipe flow at low Reynolds numbers
Yin, Guang; Ong, Muk Chen (Peer reviewed; Journal article, 2020-10)Numerical simulations are carried out to investigate the flow around a stationary sphere in a pipe. Seven sphere diameters d = 0.1D–0.9D (D is the diameter of the pipe) are chosen to investigate the effects of the blockage ... -
On-bottom Stability of a Subsea pipeline in Irregular Waves
Li, Lanjing (Masteroppgave/UIS-TN-IKM/2016;, Master thesis, 2016-06)Pipelines in a subsea environment are exposed to a very complex system of hydrodynamic reaction. The on-bottom stability has long been a important study for offshore practice. The soil types, wave conditions as well as ... -
On-Bottom Stability of Umbilicals and Power Cables for Offshore Wind Applications
Ji, Guomin; Ong, Muk Chen (Peer reviewed; Journal article, 2019)With the increase in offshore wind farms, the demands for umbilicals and power cables have increased. The on-bottom stability of umbilicals and power cables under the combined wave and current loading is the most challenging ... -
Optimisation of Suspended Inter-array Power Cable Configurations for Floating Offshore Wind Turbines
Izwan, Ahmad (Master thesis, 2022)Floating offshore wind turbines (FOWTs) have been demonstrated to be highly promising for effectively harnessing energy from offshore wind in deeper water areas where installing bottom-fixed offshore wind turbines is not ... -
Power performance and dynamic responses of a combined floating vertical axis wind turbine and wave energy converter concept
Cheng, Zhengshun; Wen, Ting-Rui; Ong, Muk Chen; Wang, Kai (Peer reviewed; Journal article, 2019)Currently, the development of floating wind turbines and wave energy converters (WECs) is both facing the challenge of high cost-of-energy (CoE). A promising way to reduce the CoE is to employ combined wind and wave energy ... -
Prediction of long-term extreme response of two-rotor floating wind turbine concept using the modified environmental contour method
El Beshbichi, Omar; Rødstøl, Henrik; Xing, Yihan; Ong, Muk Chen (Peer reviewed; Journal article, 2022)The modified environmental contour method (MECM) is assessed for the prediction of 50-year extreme response of a two-rotor floating wind turbine concept (2WT) deployed in two offshore sites in the northern North Sea (Norway ... -
Random Wave-Induced Momentary Liquefaction around Rubble Mound Breakwaters with Submerged Berms
Celli, Daniele; Li, Yuzhu; Ong, Muk Chen; Di Risio, Marcello (Peer reviewed; Journal article, 2020-05)The effects of submerged berms in attenuating the momentary liquefaction beneath rubble mound breakwaters under regular waves were investigated in a recent study. The present work aims to investigate the momentary liquefaction ... -
Reduced Order Models for Hydrodynamic Analysis of Pipelines based on Modal Analysis and Machine Learning
Nazvanova, Anastasiia (Master thesis, 2023)Bluff bodies have extensive implementation in engineering. For instance, marine risers, jumpers, umbilicals, and bundle flowlines are the examples of the circular bluff bodies which are used in the field of offshore ... -
Scour and Burial of Spherical Bodies, Short Cylinders, and Truncated Cones Induced by Bichromatic and Bidirectional Waves
Myrhaug, Dag; Ong, Muk Chen; Holmedal, Lars Erik (Peer reviewed; Journal article, 2024)This article provides a method by which the scour and self-burial of spherical bodies, short cylinders, and truncated cones that are induced by bichromatic and bidirectional waves could be derived. The empirical scour and ... -
Spar-type vertical-axis wind turbines in moderate water depth: A feasibility study
Wen, Ting-Rui; Wang, Kai; Cheng, Zhengshun; Ong, Muk Chen (Peer reviewed; Journal article, 2018)The applications of floating vertical-axis wind turbines (VAWTs) in deep water have been proposed and studied by several researchers recently. However, the feasibility of deploying a floating VAWT at a moderate water depth ...