Browsing Øvrige samlinger by Title
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Numerical Simulation of Hydrodynamics Around Net Meshes Using REEF3D
(Chapter, 2020)Hydrodynamics and turbulence around net meshes have drawn more and more attention because it is closely related to forces on the structures and safety issues of offshore fish farms. In terms of numerical modeling of forces ... -
Numerical Simulation of Interactions between Water Waves and a Moored-Floating Breakwater
(Chapter, 2018)Floating breakwaters offer a cost-efficient alternative to common emerged rubble mound breakwaters in deep water coastal areas or harbors with poor seabed conditions. Often, simple box type structures with a suitable mooring ... -
Numerical Simulation of Mutual Capacitance Touch Screens for Ungrounded Objects
(Journal article; Peer reviewed, 2017) -
Numerical simulation of piggyback pipelaying under current loadings
(Peer reviewed; Journal article, 2023)For piggyback pipelaying operations, current-induced force and its effect on the piggyback pipe have not been thoroughly studied. In the present study, an improved method in hydrodynamic load calculation and structural ... -
Numerical simulation of pore pressure in rock joints during pressure transient in an unlined hydropower tunnel
(Chapter, 2020)Recent experimental result shows that pressure transients of both short and long time periods; i.e. water hammer and mass oscillation; can travel into the rock mass of an unlined hydropower tunnel through rock joints. It ... -
Numerical simulation of thermal environment at different relative humidity levels in one operating room of St. Olav’s hospital
(Journal article, 2021)This study investigated the influence of three different levels of relative humidity, 20%, 40%, and 60% on the thermal comfort of surgical patient and staff in one operating room of St. Olav’s hospital with mixing ventilation. ... -
Numerical Simulation of Wave Interaction with Submerged Porous Structures
(Peer reviewed; Journal article, 2020)The study of wave interaction with porous structures is essential as coastal structures are often porous in nature because of their prominent energy dissipation characteristics. The present work is focused on the numerical ... -
Numerical simulation of waves and local scour around vertical cylinders in a triangular arrangement using REEF3D
(Chapter, 2015)Coastal and offshore structures are generally supported by a group of cylinders. The stability of the structures can be threatened by sediment transport around the foundations. To explore this topic in detail, numerical ... -
Numerical Simulations for Installation of Offshore Wind Turbine Monopiles Using Floating Vessels
(Chapter; Peer reviewed, 2013)Monopiles are the most commonly used support structures for offshore wind turbines with up to 40m water depth due to the simplicity of the structure. The installation of turbine support structures can be carried out by a ... -
Numerical Simulations of Scattering of Light from Two-Dimensional Rough Surfaces Using the Reduced Rayleigh Equation
(Journal article; Peer reviewed, 2013)A formalism is introduced for the non-perturbative, purely numerical, solution of the reduced Rayleigh equation (RRE) for the scattering of light from two-dimensional penetrable rough surfaces. Implementation and performance ... -
Numerical Simulations of Sloshing and the Thermodynamic Response Due to Mixing
(Journal article; Peer reviewed, 2017)In this paper, we apply computational fluid dynamics (CFD) to study the thermodynamic response enhanced by sloshing inside liquefied natural gas (LNG) fuel tanks. An existing numerical solver provided by OpenFOAM is used ... -
Numerical simulations of staged biomass grate fired combustion with an emphasis on NOx emissions
(Peer reviewed; Journal article, 2015)In the present paper NOx emissions from biomass combustion was studied, with the objective to demonstrate the applicability of stationary computational fluid dynamics simulations, including a detailed representation of the ... -
NUMERICAL SIMULATIONS OF SUBMERGED AND PRESSURISED X65 STEEL PIPES
(Chapter, 2013)While in service, pipelines may from time to time be exposed to impact loads from anchors or trawl gear. A lot of parameters influence the behaviour of the pipeline during impact, e.g. the diameter and thickness of the ... -
A Numerical Solution for Modelling Mooring Dynamics, Including Bending and Shearing Effects, Using a Geometrically Exact Beam Model
(Peer reviewed; Journal article, 2021)During the operation of moored, floating devices in the renewable energy sector, the tight coupling between the mooring system and floater motion results in snap load conditions. Before snap events occur, the mooring line ... -
Numerical solution of cahn-hilliard system by adaptive least-squares spectral element method
(Journal article, 2018)There is a growing interest in the phase-field approach to numerically handle the interface dynamics in multiphase flow phenomena because of its accuracy. The numerical solution of phase-field models has difficulties in ... -
A numerical solver for coupled dynamic simulation of glacial ice impacts considering hydrodynamic-ice-structure interaction
(Peer reviewed; Journal article, 2021)Glacial ice features pose great threats on the safety of ships and offshore structures in the arctic. House sized bergy bits or growlers are of particular concern because of the detection capability limits of marine radars. ... -
Numerical studies of the scattering of light from a two-dimensional randomly rough interface between two dielectric media
(Journal article; Peer reviewed, 2016)The scattering of polarized light incident from one dielectric medium on its two-dimensional randomly rough interface with a second dielectric medium is studied. A reduced Rayleigh equation for the scattering amplitudes ... -
Numerical studies of the transmission of light through a two-dimensional randomly rough interface
(Journal article; Peer reviewed, 2017)The transmission of polarized light through a two-dimensional randomly rough interface between two dielectric media has been much less studied, by any approach, than the reflection of light from such an interface. We have ... -
Numerical studies on the dynamic behavior of a superlong curved pontoon bridge under wind and wave actions
(Chapter, 2019)Floating bridges serve as attractive solutions where classical bridge concepts are not possible. However, compared to more commonly encountered bridge concepts such as cablesupported bridges, their dynamic behavior remains ... -
Numerical Study for a Catamaran Gripper-Monopile Mechanism of a Novel Offshore Wind Turbine Assembly Installation Procedure
(Chapter; Peer reviewed, 2017)Current methods for installation of offshore wind turbines are all sensitive to the weather conditions and the present cost level of offshore wind power is more than twice the cost of land-based units, increasing with water ...