Blar i Publikasjoner fra CRIStin på forfatter "Ong, Muk Chen"
-
Analysis of spar and semi-submersible floating wind concepts with respect to human exposure to motion during maintenance operations
Kaptan, Mert; Skaare, Bjørn; Jiang, Zhiyu; Ong, Muk Chen (Peer reviewed; Journal article, 2022)Floating offshore wind turbines (FOWTs) are expected to experience onsite maintenances and inspections during their lifetimes. To carry out offshore maintenance activities, a crew will be transferred to an FOWT and spend ... -
An Approach to Determine Optimal Bow Configuration of Polar Ships under Combined Ice and Calm-Water Conditions
Li, Hu; Feng, Yan; Ong, Muk Chen; Zhao, Xin; Zhou, Li (Peer reviewed; Journal article, 2021-06)Selecting an optimal bow configuration is critical to the preliminary design of polar ships. This paper proposes an approach to determine the optimal bow of polar ships based on present numerical simulation and available ... -
Assessment of shallow water random wave-induced scour at the trunk section of breakwaters using deep water wind and wave conditions
Myrhaug, Dag; Ong, Muk Chen (Peer reviewed; Journal article, 2020)This article provides a simple analytical method giving estimates of random wave-induced scour at the trunk section of vertical-wall and rubble-mound breakwaters in shallow water from deep water wind and wave conditions. ... -
Baseline design of a subsea shuttle tanker system for liquid carbon dioxide transportation
Ma, Yucong; Xing, Yihan; Ong, Muk Chen; Hemmingsen, Tor (Peer reviewed; Journal article, 2021-10)This paper presents the baseline design of a 34,000-tonne subsea shuttle tanker (SST). The SST is proposed as an alternative to subsea pipelines and surface tankers for the transportation of liquid carbon dioxide (CO2) ... -
CFD investigation of blind-tee effects on flow mixing mechanism in subsea pipelines
Han, Fenghui; Liu, Yuxiang; Ong, Muk Chen; Yin, Guang; Li, Wenhua; Wang, Zhe (Peer reviewed; Journal article, 2022)Blind tees are widely used in subsea pipelines to enhance the mixing conditions of oil and gas products, but their structural design still relies on experience. In this paper, a series of numerical investigations have been ... -
CFD Investigation on Hydrodynamic Resistance of a Novel Subsea Shuttle Tanker
Xing, Yihan; Janocha, Marek Jan; Yin, Guang; Ong, Muk Chen (Peer reviewed; Journal article, 2021-12)The Subsea Shuttle Tanker (SST) was proposed by Equinor as an alternative to subsea pipelines and surface tankers for the transportation of liquid carbon dioxide (CO2) from existing offshore/land facilities to marginal ... -
CFD investigation on scour beneath different configurations of piggyback pipelines under steady current flow
Fraga, Vinicius Serta; Yin, Guang; Ong, Muk Chen; Myrhaug, Dag (Peer reviewed; Journal article, 2022)Scour beneath piggyback pipelines laid on a sandy seabed is numerically investigated by solving two-dimensional (2D) Unsteady Reynolds-averaged Navier-Stokes (URANS) equations. The fluid flow and the sediment transport are ... -
CFD investigations of scour beneath a submarine pipeline with the effect of upward seepage
Li, Yuzhu; Ong, Muk Chen; Fuhrman, David R. (Peer reviewed; Journal article, 2020-12)A numerical model of scour beneath subsea structures considering the effect of upward seepage in the seabed is proposed. A small seepage can cause significant changes to the hydrodynamic force on the bed surface and stability ... -
CFD Simulations of the Propagation of Free-Surface Waves Past Two Side-By-Side Fixed Squares with a Narrow Gap
Zhang, Haoyu; Liu, Shengnan; Ong, Muk Chen; Zhu, Renqing (Peer reviewed; Journal article, 2019)Two-dimensional computational fluid dynamics (CFD) simulations are carried out to investigate the gap resonance phenomenon that occurs when free-surface waves travel past twin squares in tandem. The volume of fluid method ... -
CFD simulations of violent breaking wave impacts on a vertical wall using a two-phase compressible solver
Liu, Shengnan; Gatin, Inno; Obhrai, Charlotte; Ong, Muk Chen; Jasak, Hrvoje (Peer reviewed; Journal article, 2019)Four different types of breaking wave impacts on a vertical wall are simulated using a two-dimensional two-phase Computational Fluid Dynamic (CFD) model. Air is considered as an isentropic ideal gas without solving an ... -
Challenges and opportunities of marine propulsion with alternative fuels
Chiong, Meng-Choung; Kang, Hooi-Siang; Shaharuddin, Nik Mohd Ridzuan; Mat, Shabudin; Quen, Lee Kee; Ten, Ki-Hong; Ong, Muk Chen (Peer reviewed; Journal article, 2021-06)The increasingly stringent shipping emissions regulations and global decarbonisation movement have prompted the adoption of alternative fuels in the shipping industry. This review presents the performance results and ... -
Comparative dynamic analysis of two-rotor wind turbine on spar-type, semi-submersible, and tension-leg floating platforms
El Beshbichi, Omar; Xing, Yihan; Ong, Muk Chen (Peer reviewed; Journal article, 2022)Multi-rotor floating offshore wind turbines have been recently proposed as an innovative technology to further reduce the cost of offshore wind energy. Even though examples of commercial prototypes are present, the literature ... -
Comparative study of circular and square gravity-based fish cages with different dimensions under pure current conditions
Mjåtveit, Magnus Aske; Cheng, Hui; Ong, Muk Chen; Lee, Jihoon (Peer reviewed; Journal article, 2021-12)Two typical gravity-based fish cages with circular and square shapes are modeled in the present study to compare their cage deformations, cultivation volumes and drag forces under different pure current conditions. Two hy ... -
Comparative study of five commonly used gravity type fish cages under pure current conditions
Cheng, Hui; Li, Lin; Ong, Muk Chen (Peer reviewed; Journal article, 2022-04)Gravity type fish cages have been commonly used in marine aquaculture for years. However, only limited research efforts have been made to assess the influences of different design parameters on the structural responses of ... -
Comparative study on two deployment methods for large subsea spools
Li, Lin; Zhu, Xinying; Parra, Carlos Andres; Ong, Muk Chen (Peer reviewed; Journal article, 2021-08)The demand for subsea spool deployment is increasing with the expansion of offshore projects. For a project to install multiple spools, different deployment methods can be used. The choice of method may influence the safety ... -
Contact stresses associated with the wedge-lock mechanism in a prototype subsea pipeline recovery tool
Xing, Yihan; Eriksson, Nicolai Bull; Ong, Muk Chen; Knutsen, C. (Peer reviewed; Journal article, 2019)This paper examines the contact stresses associated with the wedge-lock mechanism in a prototype subsea pipeline recovery tool (PRT) through numerical methods and experimental testing. The prototype PRT studied combines ... -
Convolutional Neural Networks and Feature Fusion for Flow Pattern Identification of the Subsea Jumper
Lin, Shanying; Xu, Jialu; Liu, Shengnan; Ong, Muk Chen; Li, Wenhua (Peer reviewed; Journal article, 2023)The gas–liquid two-phase flow patterns of subsea jumpers are identified in this work using a multi-sensor information fusion technique, simultaneously collecting vibration signals and electrical capacitance tomography of ... -
Development of a coupling algorithm for fluid-structure interaction analysis of submerged aquaculture nets
Cheng, Hui; Ong, Muk Chen; Li, Lin; Chen, Hao (Peer reviewed; Journal article, 2021-12)A coupling algorithm between two open-source numerical toolboxes, i.e., OpenFOAM and Code_Aster, is implemented for fluid-structure interaction analysis of submerged nets. This algorithm is developed to handle the wake ... -
Dynamic analysis of a two-rotor wind turbine on spar-type floating platform
El Beshbichi, Omar; Xing, Yihan; Ong, Muk Chen (Peer reviewed; Journal article, 2021-07)The dynamic response of a two-rotor wind turbine mounted on a spar-type floating platform is studied. The response is compared against the baseline OC3 single-rotor design. Structural design shows how the two-rotor design ... -
Effects of mooring line breakage on dynamic responses of grid moored fish farms under pure current conditions
Cheng, Hui; Li, Lin; Ong, Muk Chen; Aarsæther, Karl Gunnar; Sim, Jaesub (Peer reviewed; Journal article, 2021)Due to the lack of sheltered area, Norwegian fish farms are expanding to more exposed and remote sites. The severe environmental conditions in exposed sites can increase the risk of structural failure during aquaculture ...