Browsing Institutt for marin teknikk by Subject "Marin teknikk (2-årig), Marin hydrodynamikk"
Now showing items 1-20 of 29
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2D experimental and numerical study of moonpool with recess
(Master thesis, 2018)The background for this master's thesis is the complications that is faced in the industry with regards to operational time inside moonpools. This thesis focuses on moonpools with recess, and the fluid resonant phenomena ... -
Analysis and Design of Mooring and Turret Systems for Ship-shaped Floating Production Systems (FPSOs)
(Master thesis, 2018)During the past years, the requirements for mooring and station keeping systems of mobile and permanent units have become more complex. The oil and gas industry is moving into deeper and colder regions in search of new oil ... -
Analysis and Design of Mooring and Turret Systems for Ship-shaped Floating Production Systems (FPSOs) - Analyse og design av forankrings- og turretsystemer for flytende produksjonsskip (FPSO)
(Master thesis, 2017)From a marine operational point of view, a precise position and motion control of ships and other floating structures are important. In order to design a mooring system that can satisfy this, the top end motion of the ... -
Design and Optimization of Mooring Systems for Floating Wind Turbines
(Master thesis, 2016)Hywind Demo is the world s first full scale floating offshore wind turbine, developed and operated by Statoil ASA. Throughout this thesis, a time domain model of Hywind Demo is used to design an optimized mooring system ... -
Dynamic Ssimulation Of Dart Anchor Installation
(Master thesis, 2015)Over the few last decades, numerous mooring concepts have been developed, one of these being the dart/ torpedo anchor. A torpedo anchor is shaped like an arrow and is equipped with tail fins to provide good directional and ... -
Effect of change of propulsion system on M/S Midnatsol
(Master thesis, 2017)In 2016 the costal liner M/S Midnatsol had her main thruster system changed from the twin fixed pitch contrarotating thruster system Contaz to the twin controllable pitch Azipull thruster system. The purpose of this thesis ... -
Experimental and numerical investigations of loads on aquaculture nets
(Master thesis, 2017)This master thesis is to investigate the drag forces on net panels with different twine diameter, material, solidity ratio, and Reynolds number. A series of net panel towing tests has been carried out. Resistance force on ... -
Experimental Investigation of Porous Structures in Splash Zone
(Master thesis, 2018)First, the KC number (or porous KC number) varying hydrodynamic coefficients for porous plates are determined from forced oscillations in deep water. Then water-entry drag coefficient is determined from the force impulse ... -
Experimental Investigation of Vertical Forces in Pure Sway Motion for a Free Surface Roll Damping Tank
(Master thesis, 2016)In this thesis the objective was to perform experiments in pure sway motion of a model roll damping tank, to try and locate a connection between the vertical forces that develop in such condition, and several influential ... -
Fabrication, Launching and Towing of Submerged Production Unit - A Technology Development Project of Subsea7
(Master thesis, 2018)The demand for fossil fuels drives for an advancement in the existing subsea technology. The developments evolved as the search for hydrocarbons moved from onshore to offshore, followed by a transition from shallow to deep ... -
Feasibility Study of the ECO Trawl Concept
(Master thesis, 2018)The objective of thesis is a preliminary feasibility study of the ECO Trawl Concept, proposed by ECO Trawl AS. The concept aims at replacing the traditional trawl door solution commonly used in trawling, and instead use ... -
Frequency Dependence of Bilge Keels
(Master thesis, 2018)The goal of this master's thesis is to inspect the damping generated by bilge keels. Two dimensional cross sections have been modeled both with and without bilge keels and simulated using the computational fluid dynamics ... -
Green-water phenomena for feed barges in exposed sea areas
(Master thesis, 2017)Because of high growth in the aquaculture industry, the feeding barges are moving out to more exposed areas. This brings problems such as water on deck. In this master thesis, a shallow water equation code has been constructed ... -
Higher Order Spectral method for wave scenarios with nonlinear and dispersive effects
(Master thesis, 2018)For ocean application, a High Order Spectral (HOS) method is studied. Different from most application of HOS method which use initial value problem to investigate the spectrum evolution, embedded wave generation is implemented ... -
Hydrodynamic Analysis and Optimization of Interceptor based Air Lubrication for High Speed Vessels
(Master thesis, 2018)This master thesis is written with the goal to analyse air lubrication at high speed catamarans. It continues where the authors project thesis written during the autumn of 2017 ended, and includes available full scale ... -
Hydrodynamic effects regarding free-fall lifeboat for compressible air in CFD simulations
(Master thesis, 2017)Free falling lifeboats are often used as a last resort evacuation system for fixed or floating offshore installations. Lifeboats are normally resting at a skid which is mounted at the mother vessel, until the hook holding ... -
Hydrodynamic effects relevant for free-falling lifeboats in wave conditions
(Master thesis, 2017)A free- falling lifeboat is a last resort evacuation system, installed on many rigid and floating offshore structures. The diving process of a free-falling lifeboat is a complex matter, as the external forces varies through ... -
Hydrodynamic Modelling Effects on Fatigue Calculations for Monopile Offshore Wind Turbines
(Master thesis, 2016)For shallow and intermediate water depths, monopile foundations are the most commonly used concept, and is considered the most promising with respect to the cost of energy. The typical highest structural eigenperiods of ... -
Hydrodynamic Optimization of Trimaran Workboat Hulls
(Master thesis, 2017)The object of this master thesis was to perform an initial design optimization for a trimaran concept, with the goal of minimizing the hydrodynamic resistance for a speed of 30 knots. The thesis is written in cooperation ... -
Investigation into the Capabilities of Linear Theory for Numerical Modelling of Wave-Body Interactions for a 2D Heaving Buoy - Application to Wave Energy Converters
(Master thesis, 2017)Numerical modelling of wave energy converters (WECs) is currently an area of interest within the marine renewable energy industry, due to its ability to streamline design processes and accelerate scientific understanding. ...