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Numerical modelling of hydrodynamic responses of Ocean Farm 1 in waves and current and validation against model test measurements
(Peer reviewed; Journal article, 2021)With the continuous growing of the aquaculture industry and increasingly limited fish farming sites at close to shore areas both in Norway and worldwide, there is a need to develop fish farms suitable for aquaculture ... -
Numerical modelling of pipeline scour under the combined action of waves and current with free-surface capturing
(Journal article; Peer reviewed, 2019)Understanding the pipeline scour processes under the combined action of waves and current is essential for adequate scour protection measures. This paper presents the numerical modelling of pipeline scour under the ... -
Numerical Modelling of Sailing Hydrofoil Boats
(Master thesis, 2019)Motivasjonen til denne avhandlingen kommer fra ønsket om å lage en treningssimulator for erfarne seilere som ikke er kjent med hydrofoilfartøy. Siden en simulator kan være basert på flere typer numeriske metoder, blir en ... -
Numerical Modelling of Turbulent Boundary Layer
(Master thesis, 2014)Most physical problems involving viscous fluid flows are characterized by turbulence where instabilities and large velocity gradients generate fluctuations in the flow field. Towed sonar arrays are exposed to turbulence ... -
Numerical Models in Real-Time Hybrid Model Testing of Slender Marine Systems
(Chapter, 2017)This paper presents a study of numerical models used in Real-Time Hybrid Model (ReaTHM) testing, conducted in a still water basin at SINTEF Ocean. ReaTHM testing is a method where a system is divided into physical and ... -
A Numerical Parameter Study on Current Forces on Circular Aquaculture Net Cages
(Chapter, 2013)The focus in this paper is on current forces on circular aquaculture nets, and how they vary with different parameters. The main parameters are current velocity and profile, solidity ratio of the net, sinker weights and ... -
Numerical Potential-Flow Studies on Weakly-Nonlinear Wave-Body Interactions with/without Small Forward Speeds
(Doctoral Theses at NTNU, 1503-8181; 2010:215, Doctoral thesis, 2010)A two-dimensional Quadratic Boundary Element Method (QBEM) and a three-dimensional cubic Higher-order Boundary Element Method (HOBEM) are developed to study respectively the twodimensional and three-dimensional weakly-nonlinear ... -
Numerical Prediction of Ship-Ice Interaction: A Project Presentation
(Chapter; Peer reviewed, 2017)It is inevitable that commercial shipping and oil and gas resource exploitation activities in the Arctic will increase due to decreasing sea ice extent caused by global climate changes. Significantly more demanding and at ... -
Numerical prediction of wave patterns due to motion of 3D bodies by Kelvin-Havelock sources
(Peer reviewed; Journal article, 2016)This paper discusses the numerical evaluation of the hydrodynamic characteristics of submerged and surface piercing moving bodies. Generally, two main classes of potential methods are used for hydrodynamic characteristic ... -
Numerical Predictions of Global and Local Ice Loads on Ships
(Doktoravhandlinger ved NTNU, 1503-8181; 2011:154, Doctoral thesis, 2011)Ice loads represent the dominant load for ice-going ships, and it is important to estimate both global and local ice loads on ship hulls. The global ice load governs the ship’s overall performance in ice, and it is an ... -
Numerical Simulation for Installation of Jacket Foundation of Offshore Wind Turbines
(Master thesis, 2014)A large contribution to the overall project costs of an offshore wind farm originates from the transport and installation of the substructures. A better understanding of the operational limits that apply for the installation ... -
Numerical Simulation of Boundary Layer Flow Around Simplified Subsea Structures
(Master thesis, 2015)Numerical simulations of boundary layer flow over simplified subsea structures on a flat seabed have been performed. A two-dimensional RANS method with a standard high Reynolds number k-ε turbulence model have been applied. ... -
Numerical Simulation of Flow Around a Prolate Spheroid
(Master thesis, 2017)The concept of closed containment fish cages is promising when coping with sea lice and escaped fish challenges in the aquaculture industry. Unlike the traditional open net cages, the external flow caused by current and ... -
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 Simulation of Flow around Single and Two side-by-side Square Cylinders with Horizontal Offsets Mounted on the Seafloor
(Master thesis, 2016)Computational Fluid Dynamics (CFD) have been applied to obtain essential hydrodynamic quantities and flow behaviors of single and two 2D wall-mounted square cylinders subjected to a uniform turbulent inflow. This is a ... -
NUMERICAL SIMULATION OF FLOW AROUND TWO SIDE-BY-SIDE RECTANGULAR CYLINDERS WITH VERTICAL AND HORIZONTAL OFFSETS
(Master thesis, 2015)Computational Fluid Dynamics (CFD) is a common tool when investigating the effects of flow around structures. In this thesis, I have used \textit{ANSYS ICEM CFD} (Analysis System Integrated Computer Engineering and ... -
Numerical Simulation of Free-Surface Waves past Two Semi-Submerged Horizontal Circular Cylinders in Tandem
(Journal article; Peer reviewed, 2017)Two-dimensional (2D) numerical simulations are performed to investigate free surface waves past two semi-submerged horizontal circular cylinders in tandem. The 2D simulations are carried out by solving the Unsteady ... -
Numerical Simulation of Fully Nonlinear Interaction Between Regular and Irregular Waves and a 2D Floating Body
(Chapter, 2019)A fully nonlinear Navier-Stokes/VOF numerical wave tank, developed within the open-source CFD toolbox OpenFOAM, is used to investigate the response of a moored 2D floating body to nonlinear wave loads. The waveDyMFoam ... -
Numerical Simulation of Installation of XL Monopile for Offshore Wind Turbines
(Master thesis, 2016)There has to be a significant increase in the share of power supplied by renewable energies to reduce global emission, simultaneously as the wealth is rising in the newly industrialized countries. Wind energy is one of the ... -
Numerical Simulation of Three-dimensional Viscous Flow around Marine Structures
(Doktoravhandlinger ved NTNU, 1503-8181; 2005:170, Doctoral thesis, 2005)The first part of the thesis covers the theoretical background for computational fluid dynamics; specifically, the incompressible Navier-Stokes equations. Some general solution methods are reviewed, as well as the most ...