Blar i NTNU Open på forfatter "Steen, Sverre"

Viser treff 41-60 av 132

    • Evaluation of three different foil-strut junction designs for a hydrofoil vessel 

      Tomasgaard, Hermann (Master thesis, 2023)
      Selve sammenkoblingen mellom "strut" og "foil" i "hydrofoilen" har stor betydning for den totale motstanden til hydrofoil-systemer. Dette hovedsakelig på grunn av inteferensmotstand som forårsakes av det møtende grensesjiktet ...

    • Experimental analysis on the risk of vortex ventilation and the free surface ventilation of marine propellers 

      Kozlowska, Anna Maria; Steen, Sverre (Journal article; Peer reviewed, 2017)
      The paper presents a discussion of the ventilation inception and air drawing prediction of ships propellers, aiming to predict under what conditions ventilation will happen, and the actual physical mechanism of the ...

    • Experimental and Theoretical Investigations on the Ship Resistance in Level Ice 

      Myland, Daniela (Doctoral theses at NTNU;2019:198, Doctoral thesis, 2019)
      The growing interest in Arctic transportation and field logistics leads to an increasing demand for ships with good ice breaking performance. The ice breaking performance of ships is usually defined by their ability to ...

    • Experimental measurements of propulsive factors in following and head waves 

      Saettone, Simone; Taskar, Bhushan; Steen, Sverre; Andersen, Poul (Peer reviewed; Journal article, 2021)
      The results from resistance measurements in calm water and load-varying self-propulsion tests in calm water and regular head and following waves are presented. The experimental campaign is conducted in the large towing ...

    • Fatigue Loads on Large Diameter Monopile Foundations of Offshore Wind Turbines 

      Trøen, Tine Louise (Master thesis, 2014)
      The objective of this master thesis is to investigate the fatigue loading on an offshore wind turbine located in a waterdepth of 45 m. Offshore wind turbines are especially prone to fatigue due to variable environmental ...

    • Feasibility study of a system for damping ship pitch motions and extraction of wave energy 

      Hansen, Asbjørn Skjevdal (Master thesis, 2011)
      A system for pitch motion reduction of offshore vessels is investigated for feasibility. An air chamber is simulated in the bow section of a case ship open to water in the bottom and with a small opening in the top where ...

    • Feasibility Study of the ECO Trawl Concept 

      Liland, Vegard Arnetveit (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 ...

    • Flapping Foil Propulsion for Conventional Ships 

      Yrke, Audun (Master thesis, 2017)
      Feasibility of flapping foil propulsion was discussed with respect to design in the project thesis. The study showed that flapping foil propulsion is feasible for conventional ships, but the performance predictions were ...

    • Flexible Pipeline for LNG Offloading System 

      Magnusson, Stian T (Master thesis, 2013)
      A theoretical description of the flexible riser has been presented with emphasis on cryogenic inner bore fluid flow. A description of choice of material and cross-sectional design with respect to cryogenic flexible pipes ...

    • Fuel savings for a general cargo ship employing retractable bow foils 

      Bøckmann, Eirik; Yrke, Audun; Steen, Sverre (Journal article, 2018)
      Route simulations were performed on a 100 m long (between perpendiculars) general cargo ship equipped with retractable bow-mounted foils, so-called wavefoils, for resistance reduction and motion damping in waves. Two ...

    • Global sensitivity analysis and repeated identification of a modular maneuvering model of a passenger ferry 

      Gavrilin, Sergey; Steen, Sverre (Journal article; Peer reviewed, 2018)
      In the paper a modular manoeuvring model of the passenger ferry “Landegode” is built, validated and studied. Global sensitivity analysis based on the variance decomposition is performed to assess the sensitivity of the ...

    • Global Shipping Emissions from a Well-to-Wake Perspective: The MariTEAM Model 

      Kramel, Diogo; Muri, Helene; Kim, YoungRong; Lonka, Radek; Nielsen, Jørgen Bremnes; Ringvold, Anna L.; Bouman, Evert Alwin; Steen, Sverre; Strømman, Anders Hammer (Peer reviewed; Journal article, 2021)
      Improving the robustness of maritime emission inventories is important to ensure we fully understand the point of embarkment for transformation pathways of the sector toward the 1.5 and 2°C targets. A bottom-up assessment ...

    • Hydrodynamic Aspects of Sail-Assisted Merchant Vessels 

      Kramer, Jarle Vinje (Doctoral theses at NTNU;2022:190, Doctoral thesis, 2022)
      Modern sail technology is a potential solution for reducing the fuel consumption for merchant ships. This can be used to either reduce the emission of greenhouse gasses with conventional fuels, or the cost related to ...

    • Hydrodynamic design of an autonomous ROV vessel 

      Gjerde, Sofie Kopperstad (Master thesis, 2020)
      Den fyrste autonome fullskala lastekontainerfartøyet er for tida under bygging, kjend under namnet «Yara Birkeland». Ettersom teknologien stadig blir bedre, er det sannsynleg at den autonome teknologien kan utvidast til ...

    • Hydrodynamic interaction between a small autonomous ship and an ROV 

      Poovanmadathil, Mohammed Nizar (Master thesis, 2021)
      The fully autonomous surface ships will be a reality and the ongoing construction of ships like "MV Yara Birkeland" is promising. In this context, the ongoing research project "ROV Revolution" aims to design and develop a ...

    • Hydrodynamic Loads on Marine Propellers Subject to Ventilation and Out of Water Condition 

      Kozłowska, Anna Maria (Doctoral theses at NTNU;2019:86, Doctoral thesis, 2019)
      Traditionally ships and propulsion units have been optimised for operation in calm water. Consideration of hydrodynamic loads in calm water might not be enough since the propeller always operate in heavy seas subject to ...

    • Hydrodynamic optimization of bulk and tank ship hulls 

      Utby, Haakon (Master thesis, 2016)
      International shipping transports more than 80 percent of global trade. Traditionally bulk carriers have been built to minimize construction cost and maximize cargo-carrying capacity, neglecting hydrodynamic characteristics. ...

    • Hydrodynamic Optimization of Trimaran Workboat Hulls 

      Kursetgjerde, Andrea Marie Schmedling (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 ...

    • Hydrodynamic performance of sail-assisted merchant vessels 

      Kramer, Jarle Andre (Master thesis, 2014)
      The main goal of this project was to explore the different physical effects that are involved when a ship is using the technology of wing sails as propulsion. The wing sails can provide a lot of thrust, but they also create ...

    • Identification and Analysis of Full Scale Ventilation Events 

      Savio, Luca; Steen, Sverre (Journal article; Peer reviewed, 2012)
      The present paper deals with propeller ventilation in full scale. The paper is based on full scale monitoring data from an offshore supply ship during normal operation. The data was collected by the on-line monitoring ...