Blar i Institutt for bygg- og miljøteknikk på tittel
Viser treff 2888-2907 av 4624
-
Numerical Modelling of Wave Interaction with Floating structures and Moored Floating Structures
(Master thesis, 2018)CFD model is new generation tool in design and engineering challenges. The thesis task was to use CFD model to perform validation of the 6DOF algorithm and the mooring model. The obtained results were successful. -
Numerical Modelling of Wave Overtopping Response to Sea Level Rise with REEF3D::SFLOW
(Master thesis, 2020)Klimaendringer har vært et hovedtema på forskningsområdet nylig fordi det påvirker menneskets livsmiljø. I kystsonen og lavtliggende området forårsaker klimaendringer havnivåstigning, noe som medfører potensiell fare for ... -
Numerical simulation and analysis of phase focused breaking and non-breaking wave impact on fixed offshore platform deck
(Peer reviewed; Journal article, 2020)Extreme wave impact due to tsunamis and storm surge create large wave heights that cause destruction to coastal and offshore structures. Focused waves have been used to represent such extreme waves, and in the present ... -
Numerical simulation and comparison with experiments of a floating wind turbine using a direct forcing method
(Chapter, 2022)The open-source Computational Fluid Dynamic (CFD) code REEF3D is used to simulate the hydrodynamic loads and motion response of a floating wind turbine substructure, the INO WINDMOOR semisubmersible floating wind turbine. ... -
Numerical Simulation of Free-Surface Waves past Two Semi-Submerged Horizontal Circular Cylinders in Tandem
(Journal article; Peer reviewed, 2017)Two-dimensional (2D) numerical simulations are performed to investigate free surface waves past two semi-submerged horizontal circular cylinders in tandem. The 2D simulations are carried out by solving the Unsteady ... -
Numerical Simulation of Friction Losses in Tunnels with Strip Roughness
(Master thesis, 2018)To estimate friction introduced by plastering strips inside of laboratory tunnels, an equation named after Reidar Birkeland is used at NTNU. In this thesis, four different geometries with three different strip distances ... -
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 Ice-Rubble Mound Breakwater Interactions
(Master thesis, 2018)Offshore activity in energy production, fishing, shipping, and tourism is projected to increase in the Arctic and Sub- Arctic. This projected increase in offshore activity means the supporting coastal infrastructure needs ... -
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 Monopile Vibratory and Impact Installation in Saturated Sand
(Master thesis, 2021)Installasjon av offshore monopeler ved bruk av vibrolodd er antydet å ha flere fordeler sammenlignet med den konvensjonelle metoden ved bruk av fallodd. Det er usikkerhet knyttet til anslag av aksiell og lateral bæreevne ... -
Numerical simulation of sediment flushing in reservoirs
(Master thesis, 2018)As we saw, sediment can be a major factor in decreasing the lifespan, efficiency and profit of a hydropower plant. Countries and companies have to have countermeasures against the sedimentation, where high yields are ... -
Numerical Simulation of Submarine Slides in Bjørnafjorden Using Rheological Models
(Master thesis, 2019)The continuous development of the world creates the need for submarine transport and communication. Consequently, seafloor instabilities may create complications in the everyday life of humans. A sustainable design for the ... -
Numerical Simulation of Switch and Crossing Towards an Optimized Turnout Design
(Doctoral theses at NTNU;2018:210, Doctoral thesis, 2018)Switch and crossing (S&C) or turnout is a mechanical component within railway infrastructure that provides flexibility for train to switch from one track to another. However, such flexibility requires certain degree of ... -
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 ... -
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 Study of Air Flow in Air Cavities for Pitched Wooden Roofs
(Master thesis, 2020)I Norge sees ofte eneboliger og andre typer småhus med skrå tretak. Luftede skrå tretak med et lufthulrom under takets tekning er av betydning for å sikre tørre forhold for takkonstruksjonen og samtidig holde lav temperatur ... -
Numerical study of discharge adjustment effects on reservoir morphodynamics and flushing efficiency: An outlook for the unazuki reservoir, Japan
(Journal article; Peer reviewed, 2021) -
Numerical study of irregular breaking wave forces on a monopile for offshore wind turbines
(Journal article; Peer reviewed, 2016)Offshore wind turbine substructures consisting of cylindrical members are exposed to highly non-linear and breaking waves in shallow waters [1]. Those structures experience extreme impulsive loads of short duration from ... -
Numerical Study of Soil Nailing Technique - Empirical, classical limit equilibrium and 2D-3D FEM applications
(Master thesis, 2016)Literature review was conducted on the state-of-the art and the state-of-the practice of the soil nailing technique. The literature review focused on design analysis and constructional aspects of the soil nailing technique ...