Browsing Fakultet for ingeniørvitenskap (IV) by Subject "Marin hydrodynamikk"
Now showing items 1-20 of 27
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Calculation of Added Mass in the Proximity of the Seabed for an Oscillating Disc
(Master thesis, 2012)Calculations have been made with the commercial CFD-software Ansys Fluent, with dynamic mesh. -
Comparative study on the dynamic response of a Spar type buoy and a Sevan type cylinder floating production unit
(Master thesis, 2012)Comparative study on the dynamic response of a Spar type buoy and a Sevan type cylinder floating production unit -
DESIGN AND ANALYSIS OF TENSION LEG ANCHOR SYSTEMS FOR FLOATING WINDMILLS
(Master thesis, 2012)Increasing demand for clean and effective energy production turns interests of the world on floating offshore wind technology. To establish floating wind farms, a wind turbine have to be mound on a floating structure. The ... -
Development of an Oil Production Platform for Year-Round Operation in the Beaufort Sea
(Master thesis, 2012)Due to high expectancy of hydrocarbon resources in the Beaufort Sea itis seen as an important area for energy in the future. As the focus nowis shifting towards the deeper parts of the sea, there is a need for floatingproduction ... -
Halvt nedsenkbar tørrtre plattform: Koblingen mellom det hydro-pneumatiske stigerørsstrekk-systemet, stigerørene og kjølen.
(Master thesis, 2012)Det hydro-pneumatiske strekksystemet til stigerørene virker som en passiv hivkompensator med en olje/gass-akkumulator for a utligne de relative bevegelsene mellom semien og stigerørene. Semiresponsen fører direkte til at ... -
High Energy Ship Collisions With Bottom Supported Offshore Wind Turbines
(Master thesis, 2012)As the worlds demand for energy is increasing mostly due to the increase in population, and coal, oil and gas deposits are limited, it is desirable to gather energy from renewable energy sources. Wind energy is a form of ... -
Hydrodynamic Analysis for a Logistical HUB
(Master thesis, 2012)The conventional way of transporting personnel from shore to offshore platforms is done by helicopter. For large distances of transportation this results in high costs due to the limitations in the maximum number of persons ... -
Hydroelastic response of concrete shells during impact on calm water
(Peer reviewed; Journal article, 2023)Many ocean structures located offshore are supported by large vertical concrete columns. High and steep storm waves – in the process of breaking – may induce large local slamming loads on these columns. The present work ... -
Investigation of Hydrodynamic Aspects of the Design of the Universal Buoyancy Concept (UBC) Loading Buoy
(Master thesis, 2012)A new loading and discharge concept for ships, referred to as the Universal Buoyancy Concept (UBC), is proposed as an effective alternative to land based infrastructure for distribution of primarily LNG. The UBC system ... -
Lattice Boltzmann Simulations on a GPU: An optimization approach using C++ AMP
(Master thesis, 2012)The lattice Boltzmann method has become a valuable tool in computational fluid dynamics, one of the reasons is due to the simplicity of its coding. In order to maximize the performance potential of today s computers, code ... -
Long-Term Wave Power Statistics for Individual Waves
(Master thesis, 2012)Long-term statistics for wave power describes the waves that will occur over years and their energy. This can be found by putting together short-term statistics for individual waves and statistics from sea states. All the ... -
Mathematical Modelling of a Foil Propulsion System
(Master thesis, 2012)This thesis considers a foil propulsion system on a supply vessel. In analysing the potential of a foil propulsion system, it is imperative to establish a rigid mathematical model. In that respect, modelling of the dynamic ... -
Motion analysis of Semi-Submersible
(Master thesis, 2012)In this thesis the response variables (RAOs) of a semi submersible unit are inspected. Both operational and survival condition as well as a shallow draft are inspected. The survival condition is inspected with respect to ... -
Numerical Simulation of Flow Around Remotely Operated Vehicle (ROV)
(Master thesis, 2012)Computational Fluid Dynamics (CFD) have been applied for numerical simulations of the flow around simplified shapes of a Remotely Operated Vehicle (ROV). The simulations have been carried out at Re = 850 000, which coincides ... -
Numerical Simulations of Viscous Flow Around Stepped Circular Cylinder
(Master thesis, 2012)A stepped cylinder could be a desired design for an offshore buoy or SPAR platform. The geometry of a stepped cylinder consists of a small diameter cylinder (d) placed on top of a large diameter cylinder (D). This master ... -
Octabuoy Concept and Spar Buoys: Non Linear Effects and Analysis
(Master thesis, 2012)The age of the easy accessible hydrocarbon goes towards the end and new more challenging fields is the future of the oil industry. This is often synonymous with large depths where sea bed mounted platforms are highly ... -
Optimization of Bow Shape for Large, Slow Ships
(Master thesis, 2012)Traditionally ships have been optimized for minimizing the fuel consumption in calm water. For slow, large ships like tankers and bulk carriers this has resulted in very blunt bows with high added resistance due to waves. ... -
Parameter Sensitivity of Short-term Fatigue Damage of Spar-type Wind Turbine Tower
(Master thesis, 2012)The World s energy demand is rapidly increasing and a good viable renewable energy source is wind power. The land-based knowledge and experience the onshore wind turbine industry possess is used to develop offshore wind ... -
Relative Motion Calculator
(Master thesis, 2012)AbstractThe wind power business has in recent times changed its focus from land-based installations to offshore installations. This has presented challenges both technological and financial, mainly related to construction ...