Browsing Institutt for marin teknikk by Title
Now showing items 2223-2242 of 3421
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Numerical Investigation of Fluid-Ice-Structure Interaction During Collision by an Arbitrary Lagrangian Eulerian Method
(Chapter; Peer reviewed, 2016)When ice floes collide against marine structures, pronounced hydrodynamic loads are induced by the water-ice-structure interaction. With today’s highly competitive structural design market, it is nearly impossible to ignore ... -
Numerical Investigation of Free Surface Flows
(Master thesis, 2014)The Star-CCM+ simulation software has been used to model a number of benchmark free surface flow cases, including the two dimensional submerged NACA 0012 foil, the surface piercing NACA 0024 foil, and the well investigated ... -
Numerical investigation of oscillatory flow around a step cylinder
(Master thesis, 2022)The structures with a similar shape to the step cylinder, which consists of one small-diameter cylinder at the top and a coaxial large-diameter cylinder in the middle, are widely used in marine engineering applications. A ... -
Numerical investigation of scour beneath pipelines subjected to an oscillatory flow condition
(Peer reviewed; Journal article, 2021)The present study carries out two-dimensional numerical simulations to investigate scour beneath a single pipeline and piggyback pipelines subjected to an oscillatory flow condition at a Keulegan–Carpenter (KC) number of ... -
Numerical Investigation of Ship's Continuous-Mode Icebreaking in Level Ice
(Doctoral Theses at NTNU, 1503-8181; 2014:132, Doctoral thesis, 2014)This thesis is a summary of studies that were carried out as part of candidacy for aPhD degree. The purpose of these studies was to evaluate some factors in shipdesign that are intended for navigating in ice using numerical ... -
Numerical Investigation of Ship's Continuous-Mode Icebreaking in Level Ice
(Doctoral Theses at NTNU, 1503-8181; 2014:132, Doctoral thesis, 2014)This thesis is a summary of studies that were carried out as part of candidacy for aPhD degree. The purpose of these studies was to evaluate some factors in shipdesign that are intended for navigating in ice using numerical ... -
Numerical Investigation of the Collision Damage and Residual Strength of a Floating Bridge Girder
(Chapter, 2018)For bridges across wide and deep waterways, fixed foundation structures are not possible to be built due to technical restrictions. Alternatively, pontoon supported floating bridges which do not require fixed foundations ... -
Numerical investigation of turbulence in a skewed three dimensional channel flow
(Doktoravhandlinger ved NTNU, 1503-8181; 2009:179, Doctoral thesis, 2009)The present doctoral thesis concerns fluid flow in three-dimensional turbulent boundary layers. In such flows, both the direction and the magnitude of the mean flow vary with wall distance. A statistically stationary ... -
Numerical Investigation of Viscous Flow Around Two Tandem Circular Cylinders Ending on a Flat Plate
(Master thesis, 2018)Flow around cylindrical shapes are frequently seen both within the academics and for applications in ocean and marine engineering. Viscous flow around tandem cylinders fixed to a vertical wall is numerically simulated for ... -
Numerical Investigation of Wave-Body Interactions in Shallow Water
(Chapter; Peer reviewed, 2014)Present investigation is based on a numerical study using a time-domain Rankine panel method. The effort and novelty is to extend the applicability of the solver to shallower waters and to steeper waves by including ... -
Numerical Investigation of Wave-Body Interactions in Shallow Water
(Master thesis, 2013)DNV has Wasim (a module of HydroD) as a Rankine panel method potential flow solver originally developed for more concern to deep water analysis. Some attempts have been made to extend the capability of the program in shallow ... -
Numerical investigations of a prestressed pontoon wall subjected to ship collision loads
(Journal article; Peer reviewed, 2019)The paper presents a numerical investigation of the ship collision response for a floating pontoon. High fidelity finite element models of a container ship bow and a prestressed concrete pontoon wall are established. The ... -
Numerical investigations of Piston mode resonance in a moonpool using OpenFOAM
(Master thesis, 2010)Moonpool dynamics is a complex phenomenon, and is part of a series of problems referred to as gap problems involving entrapped fluid in a small gap. The fluid in these gaps has an infinite number of resonance modes; a ... -
Numerical investigations of the dynamic response of a floating bridge under environmental loadings
(Journal article; Peer reviewed, 2018)Floating bridges across wide and deep fjords are subjected to the environmental wind and wave loadings. In this study, the dynamic response of floating bridges under such loadings is investigated. A floating bridge concept, ... -
Numerical Methods for Flows with Evolving Interfaces
(Doktoravhandlinger ved NTNU, 1503-8181; 2004:12, Doctoral thesis, 2004)The present thesis addressed two important aspects of Computational Hydrodynamics: solution methods for following evolving interfaces, and stabilisation techniques for finite element method sin the context of convection-dominated, ... -
Numerical Modeling and Analysis of a Semi-submersible Fish-cage
(Master thesis, 2018)The concept of rigid fish-farm was raised to overcome the space limitation of traditional fish-farm. To ensure that the structure has the ability to withstand the harsh sea environment, this report investigates a rigid ... -
Numerical Modeling and Analysis of the Combined Wind and Wave Energy Concept SFC
(Master thesis, 2016)This thesis work primarily aims to achieve a good understanding of the basic principle of the frequency domain and time domain analysis methods for response analysis of combined wind and wave energy concept SFC. SFC is a ... -
Numerical Modeling and Dynamic Analysis of a Floating Bridge Subjected to Wind, Wave, and Current Loads
(Journal article; Peer reviewed, 2018)Designing reliable and cost-effective floating bridges for wide and deep fjords is very challenging. The floating bridge is subjected to various environmental loads, such as wind, wave, and current loads. All these loads ... -
Numerical Modeling and Simulation of the Single Blade Installation for a Spar Wind Turbine Inside a Floating Dock
(Master thesis, 2022)Ønsket om å redusere CO2-utslipp og avhengighet av fossil energi har vakt betydelig interesse i markedet for vindkraft til havs. Den økende størrelsen på vindturbinene og vindparkene har presset utbyggingen inn i nye farvann ... -
Numerical modeling of nonstationary hydrodynamic forces and induced motions of a coupled offshore floating installation system
(Peer reviewed; Journal article, 2022)Offshore installations always involve multi-body systems in which the hydrodynamic and mechanical interactions are complicated for the properties keep changing under certain operation procedures. Float-over deck (FOD) ...