Browsing Publikasjoner fra CRIStin - SINTEF Ocean by Author "Ong, Muk Chen"
Now showing items 1-10 of 10
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A rational approach to seepage flow effects on bottom friction beneath random waves
Myrhaug, Dag; Holmedal, Lars Erik; Ong, Muk Chen (Journal article; Peer reviewed, 2014-08)The bottom friction beneath random waves is predicted taking into account the effect of seepage flow. This is achieved by using wave friction factors for rough turbulent, smooth turbulent and laminar flow valid for regular ... -
Dynamic responses of a jacket-type offshore wind turbine using decoupled and coupled models
Ong, Muk Chen; Bachynski, Erin Elizabeth; Økland, Ole David; Passano, Elizabeth Anne (ASME Proceedings | Ocean Renewable Energy;OMAE2014-24246, Chapter, 2014-06)This paper presents numerical studies of the dynamic responses of a jacket-type offshore wind turbine using both decoupled and coupled models. In the decoupled (hydroelastic) model, the wind load is included through ... -
Fatigue Analysis of Inter-Array Power Cables between Two Floating Offshore Wind Turbines Including a Simplified Method to Estimate Stress Factors
Beier, Dennis; Schnepf, Anja; Van Steel, Sean; Ye, Naiquan; Ong, Muk Chen (Journal article; Peer reviewed, 2023)The use of floating offshore wind farms for electrical energy supply is expected to rise significantly over the coming years. Suspended inter-array power cables are a new design to connect floating offshore wind turbines ... -
Large Eddy Simulations of Flow around a Circular Cylinder in the Vicinity of a Wall at Reynold Number of 13100
Abrahamsen-Prsic, Mia; Ong, Muk Chen; Pettersen, Bjørnar; Myrhaug, Dag (Chapter, 2013)The flow around a circular cylinder in the vicinity of a rigid wall at Reynolds number 13100 is simulated using Large Eddy Simulations (LES) with Smagorinsky subgrid scale model. The main purpose of the present work is to ... -
Numerical Investigation of Vortex-Induced Vibrations of a Flexible Riser with Staggered Buoyancy Elements
Wu, Jie; Lekkala, Malakonda K. Reddy; Ong, Muk Chen (Journal article; Peer reviewed, 2020-01-30)This paper presents a numerical algorithm used together with a Finite-Element based Vortex-Induced Vibration (VIV) prediction software VIVANA to obtain a hydrodynamic force coefficient database based on response measurements ... -
Numerical Study of a Single-Point Mooring Gravity Fish Cage With Different Deformation-Suppression Methods
Cheng, Hui; Aarsæther, Karl Gunnar; Li, Lin; Ong, Muk Chen (ASME Digital collection;OMAE2019-96079, Chapter, 2019-06)Compared to the multi-point mooring fish cage, the single point mooring (SPM) fish cage can spread out the accumulation of organic matter to prevent the local environment from being overwhelmed, and reduce the manufacturing ... -
On-Bottom Stability Analysis of Subsea Pipelines Under Combined Irregular Waves and Currents
Ji, Guomin; Li, Lanjing; Ong, Muk Chen (ASME Proceedings | Pipelines, Risers, and Subsea Systems;OMAE2017-61363, Chapter, 2017-06-25)The objective of the paper is to study the effect of different parameters regarding on-bottom stability of subsea pipelines under combined irregular waves and currents. The effect of friction coefficient is first investigated. ... -
Prediction of Combined IL and CF VIV Response of Deepwater Risers
Wu, Jie; Lekkala, Malakonda Reddy; Ong, Muk Chen; Passano, Elisabeth; Voie, Per Erlend (ASME Proceedings | Prof. Carl Martin Larsen and Dr. Owen Oakley Honoring Symposia on CFD and VIV;OMAE2017-61766, Chapter, 2017-06-25)Deepwater risers are susceptible to Vortex Induced Vibrations (VIV) when subjected to currents. When responding at high modes, fatigue damage the in in-line (IL) direction may become equally important as the cross-flow ... -
Seepage effects on bedload sediment transport rate by random waves
Myrhaug, Dag; Holmedal, Lars Erik; Ong, Muk Chen (Journal article; Peer reviewed, 2014-05-15)The mean net bedload sediment transport rate beneath random waves is predicted taking into account the effect of seepage flow. This is achieved by using wave half-cycle bedload sediment transport formulas valid for regular ... -
Suspended sediments due to random waves including effects of second order wave asymmetry and boundary layer streaming
Myrhaug, Dag; Ong, Muk Chen; Holmedal, Lars Erik (Journal article; Peer reviewed, 2015-08)The paper provides a practical stochastic method by which the suspended sediment concentration due to long-crested (2D) and short-crested (3D) nonlinear random waves can be calculated. The approach is based on assuming the ...