Blar i Institutt for marin teknikk på tittel
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Turbulence Modelling of the Flow Around a Prolate Spheorid
(Master thesis, 2018)In numerous engineering disciplines, including naval and offshore engineering, the accurate prediction of turbulent flows is essential for cost-efficient and safe designs. For industrial applications, the turbulence must ... -
Turbulent flow simulations at higher Reynolds numbers
(Doctoral theses at NTNU;2019:52, Doctoral thesis, 2019)This thesis presents recent advancements in direct numerical simulations of bluff body wake flows. The flow around a circular cylinder without and with special fairings have been studied, and the effect of boundary conditions ... -
Turbulent wake behind a concave curved cylinder
(Journal article; Peer reviewed, 2019)We present a detailed study of the turbulent wake behind a quarter-of-ring curved cylinder at Reynolds number Re = 3900 (based on cylinder diamter and incoming ow velocity), by means of Direct Numerical Simulation (DNS). ... -
Turnaround strategy development: a case study
(Master thesis, 2011)Chapter 2 of this thesis handles the topic Maintenance Management and will establish a platform of word and abbreviations that will be used through the rest of the paper. Also maintenance theory of failure characteristics ... -
Two-dimensional experimental and numerical investigations of parallel perforated plates in oscillating and orbital flows
(Peer reviewed; Journal article, 2020)The hydrodynamic loads on two-dimensional perforated plates are investigated experimentally and numerically. Two parallel plate configurations, consisting of an upper perforated plate and a lower perforated plate, are ... -
Two-dimensional experimental and numerical investigations of perforated plates in oscillating flow, orbital flow and incident waves
(Peer reviewed; Journal article, 2020)The hydrodynamic loads on two-dimensional perforated plates are investigated experimentally and numerically. Two single perforated plate configurations, consisting of rows of either circular or square cylinders, are studied. ... -
Two-dimensional ice-structure interaction for offshore wind turbines
(Master thesis, 2020)Abstract will be available on 2023-07-01 -
Two-dimensional Numerical and Experimental Investigation of Hydrodynamic Forces and Wake Interaction between Two or more Square Cylinders in Large-amplitude Oscillatory Flow
(Master thesis, 2022)Denne oppgaven tar for seg og undersøker hydrodynamiske krefter og vakeinteraksjonseffekter mellom sylindre i oscillerende strømning med stor amplitude, sett i en todimensjonal situasjon. Arbeidet er gjort gjennom både ... -
Two-Dimensional Numerical and Experimental Studies of Piston-mode Resonance
(Dr. ingeniøravhandling, 0809-103X; 2009:53, Doctoral thesis, 2009) -
Two-way coupled fluid-structure interaction of gas-liquid slug flow in a flexible riser: Small-scale experiments and simulations
(Journal article; Peer reviewed, 2019)Flexible risers might be subjected to large pressure and density fluctuations when transporting multiphase mixtures as different flow patterns may take place. Those fluctuations might induce large forces on the structure, ... -
Ultimate and residual strength assessments of intact and collision damaged columns of the Bjørnafjorden floating bridge
(Chapter, 2023)The Norwegian Public Road Administration (NPRA) has initiated an ambitious project to replace the current ferry crossing solutions with floating bridges over the wide and deep Norwegian fjords. This will substantially ... -
Ultimate Limit State Analysis of Havfarm
(Master thesis, 2017)Marin fish farming is in rapid development. Dimensions are expected to increase and locations are being moved to areas exposed to more energetic waves and stronger current. With increasing dimensions and more challenging ... -
Ultimate strength analysis of stiffened steel and aluminium panels using semi-analytical methods
(Dr. ingeniøravhandling, 0809-103X; 2002:131, Doctoral thesis, 2002)Buckling and postbuckling of plates and stiffened panels are considered. Computational models for direct calculation of the response are developed using large deflection plate theory and energy principles. Deflections are ... -
Ultimate Strength and Capacity Assessment of Ice Class Vessel Operating in Ice
(Master thesis, 2016)In an ongoing project between DNV GL and a customer, the ultimate strength and damage on a ship exposed to ice loading are to be assessed. The vessel has the DNV GL class notation Ice(1A*), but is now considered for operation ... -
Ultimate Strength and Post-Ultimate Behavior of Hybrid Platform Deck Girders
(Master thesis, 2014)As for the increasing demands of offshore oil and gas, the new platforms are designed in more and more serious conditions. The safety check and modification of the complex structure has become a hot subject. Normally, the ... -
Ultimate Strength and Reliability based Design of Ship Hulls with Emphasis on Combined Global and Local Loads
(Doktoravhandlinger ved NTNU, 1503-8181; 2009:27, Doctoral thesis, 2009)During the last few decades, the emphasis in structural design of ships has moved from the allowable stress design to the ultimate limit state design. The ultimate limit state represents the collapse of the structure due ... -
Ultimate strength of aluminium panels, considering HAZ effects
(Doktoravhandlinger ved NTNU, 1503-8181; 2011:326, Doctoral thesis, 2011)Aluminium stiffened panels have been increasingly used in marine, offshore and transportation industries, especially where high strength/weight ratio structures are highly required. However, the ultimate strength of aluminium ... -
Ultimate- and Fatigue Limit State Analysis of a Rigid Offshore Aquaculture Structure
(Master thesis, 2015)Marine fish farming is in rapid development, dimensions are expected to increase, and locations are being moved to areas exposed to more energetic waves and stronger currents. New and extreme loading scenarios need to be ... -
Unburned Hydrocarbon Formation in a Natural Gas Engine Under Sea Wave Load Conditions
(Peer reviewed; Journal article, 2020)Although natural gas is documented as a low-emission fuel compared to the other traditional fossil fuels in internal combustion engines, recent research indicates large amounts of methane emission released by lean burn gas ... -
Uncertainties in current measurements in the northern North Sea
(Journal article; Peer reviewed, 2017)A met–ocean measurement program of waves and current profiles at five locations in the northern North Sea was performed over a period of approximately 5 years. Despite quality control, the measured current speed data ...