Blar i Institutt for marin teknikk på emneord "Marin teknikk, Marin hydrodynamikk"
Viser treff 1-20 av 95
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Accidental Drop of Slender Cylindrical Bodies - A Numerical and Experimental Study of Velocity and Trajectory of Cylinders Falling Through Water
(Master thesis, 2018)The oil and gas industry is continuously working to improve safety and minimise risk. Numerous offshore activities involve risks that may lead to accidents with serious consequences. The risk of accidental dropped objects, ... -
Actuation moments for hydrofoil flaps
(Master thesis, 2018)The following thesis investigates how the computer software STAR-CCM+ and Xfoil are used to determine the hydrodynamic loads on the two foil profiles EP- PLER E817 and NASA/LANGLEY LS(1)-0417 (GA(W)-1) with trailing ... -
Adequate linearization scheme for a jack-up in order to obtain sufficiently accurate fatigue assessments using a linear stochastic fatigue analyses
(Master thesis, 2017)Different techniques for linearizing the response of drag dominated structures is in this work inspected in terms of fatigue damage. To establish reference response characteristics, time domain simulations are carried out. ... -
An Experimental Investigation on Bio-Fouling Induced Drag
(Master thesis, 2015)Marine fish farming is an important and growing industry. Fouling organisms that grow on the net cages and other structural components of the fish farms are a substantial problem for the industry. The overall aim of this ... -
An Experimental Study on the Wave-Induced Hydroelastic Response of a Floating Solar Island
(Master thesis, 2018)Future energy demand are expected to increase substantially in the next decades, and there is a real need to consider new ways of supplying the energy market with cost-efficient, dependable and green sources of energy. The ... -
An Investigation of Sloshing Inside Closed Aquaculture Plants
(Master thesis, 2017)In the present work sloshing inside closed aquaculture plants at sea has been investigated by both experimental methods and linear sloshing theory. An experiment conducted in the student towing tank at NTNU during the ... -
Analysis Methods for Mooring Systems with focus on Accidental Limit State
(Master thesis, 2015)During the last years, the oil and gas industry has moved into new frontiers, which require more complex mooring solutions. The failure rate is unacceptably high, with 43 incidents for the Norwegian Continental Shelf alone, ... -
Analysis of Innovative Mooring Systems for Floating Semi-Submersible Offshore Wind Turbines
(Master thesis, 2017)This thesis considers the possibilities of cost reduction of the mooring system for a floating semi-submersible wind turbine by inclusion of fibre rope instead of, or together with, chain mooring lines. Polyester fibre ... -
Application of Inviscid Flow CFD for prediction of Motions and Added Resistance of Ships
(Master thesis, 2016)Ships usually travels in waves, but their hull is normally optimized for calm water. One reason for this is that it is expensive to do accurate calculation of resistance in waves. Model test and URANS CFD is the most ... -
Assessment of Necessary Air Gap of Semi-Submersible Accounting for Simultaneous Occurrence of Wind, Wind Sea and Swell Sea
(Master thesis, 2018)The objective of this thesis is to estimate the necessary air gap of a semi-submersible in the Northern North Sea accounting for simultaneous occurrence of wind, wind sea and swell sea. This is done by performing a linear ... -
Assessment of wave power for sea states at different sites
(Master thesis, 2018)The aim of this thesis is to investigate available and captured wave power at five different locations on the Norwegian continental shelf; Haltenbanken, North Sea Center, Ekofisk, Utsira and Tromsøflaket. A literature ... -
Biomimetic Ship Propulsion through Oscillating Hydrofoils
(Master thesis, 2015)ikke tilgjengelig. Kontakt forfatter. -
Calculation of Service and Sea Margins
(Master thesis, 2015)In this thesis two tankers owned by Kristian Gerhard Jebsen Skipsrederi (KGJS) were investigated. A method of calculating service and sea margins for different speeds has been developed. When a ship is in normal operation, ... -
Comparative Evaluation of the Performance of a Trimaran Seismic Vessel
(Master thesis, 2016)The scope of this thesis is proposed by the naval architect and maritime engineering company LMG Marin. Currently, they are in the early design phase of a new trimaran concept intended for the seismic industry. This new ... -
A Comparison of Methods for Estimation of Fatigue and Extreme Mooring Response for a Floating Spar Wind Turbine
(Master thesis, 2015)Hywind Demo is one of the worlds first floating offshore wind turbines. It is operated by Statoil and located off the coast of Karmøy in Norway. The substructure is a spar shaped hull, and it is moored with catenary mooring ... -
Coupling of a 2D Boundary Element Method with a local analytical solution to deal with geometrical singularities
(Master thesis, 2016)Boundary Element Method, BEM, as a numerical tool to solve boundary values problems, has been developed and tested. The numerical scheme is coupled with known analytical flow models for geometrical singularities, and results ... -
Critical Assessment of Non-linear Wave Loads in the Design of Offshore Wind Turbines
(Master thesis, 2014)Good wind conditions make Dogger Bank a well suited site for offshore wind industry. The harsh environment combined with shallow water, create significant non-linear wave loads which must be accounted for in the ultimate ... -
Design and Testing of Non-Axisymmetric Propeller Ducts
(Master thesis, 2015)Ducted propellers are widely used on large range of vessels, especially for increased thrust, which is important on vessels like anchor handlers and trawlers. In the later years new manufacturing techniques have been ... -
Design av flytende vindturbin - Responseundersøkelse av TLP-forankret konstruksjon
(Master thesis, 2015)Den globale satsing på fornybar energi har gjort det interessant å undersøke flytende offshore vindturbiner lenger ut til havs der vindforholdene ofte er mer gunstige og stabile. Det har allerede blitt installert flere ... -
Design of Artificial Seaweeds for Assessment of Hydrodynamic Properties of Seaweed Farms
(Master thesis, 2017)In recent years the prospect of having a seaweed industry in Norway has become of interest. Assessing the hydrodynamic properties of seaweed farms through experiments can help optimize its design and thereby potential ...