Blar i Fakultet for informasjonsteknologi og elektroteknikk (IE) på tittel
Viser treff 12921-12940 av 20264
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Numerical Analysis of NREL 5MW Wind Turbine: A Study Towards a Better Understanding of Wake Characteristic and Torque Generation Mechanism
(Journal article; Peer reviewed, 2016)With the increased feasibility of harvesting offshore wind energy, scale of wind turbines is growing rapidly and there is a trend towards clustering together higher number of turbines in order to harvest maximum yield and ... -
Numerical approximation of conformal mappings
(Master thesis, 2010)A general introduction to conformal maps and the Riemann mapping theorem is given. Three methods for numerically approximating conformal maps from arbitrary domains to the unit disc are presented: the Schwarz-Christoffel ... -
Numerical Approximation of Temperature Distribution in Deep Water Wells
(Master thesis, 2019)Dagens metoder for Early Kick Detection ved boring av dype vannbrønner er basert på flyt målere eller aktiv volumkontroll. Det vil si at man måler netto gevinst eller netto tap av sirkulasjon på et gitt tidspunkt. Man vil ... -
Numerical Aspects of Flow Based Local Upscaling
(Master thesis, 2013)We start this thesis by giving an introduction to reservoir simulation and upscaling in particular. The most common upscaling techniques, including power averaging methods and flow based local and global methods [10], are ... -
Numerical benchmarking of fluid–structure interaction: An isogeometric finite element approach
(Journal article; Peer reviewed, 2016)In this paper we describe and evaluate an isogeometric finite element program, IFEM-FSI, for doing coupled fluid–structure interaction simulations. We investigate the role played by employing higher polynomial orders and ... -
Numerical bifurcation for the capillary Whitham equation
(Journal article, 2017)The so-called Whitham equation arises in the modeling of free surface water waves, and combines a generic nonlinear quadratic term with the exact linear dispersion relation for gravity waves on the free surface of a fluid ... -
Numerical calculation of flow acoustic
(Master thesis, 2013)Yelling and vibration are large problems discovered by natural gas transport in the North Sea. It is believed these problems occur in flexible pipes that are used to transport natural gas. The flexible risers often called ... -
Numerical conservative solutions of the Hunter–-Saxton equation
(Peer reviewed; Journal article, 2021)In the article a convergent numerical method for conservative solutions of the Hunter–Saxton equation is derived. The method is based on piecewise linear projections, followed by evolution along characteristics where the ... -
Numerical evaluation on parametric choices influencing segmentation results in radiology images—a multi-dataset study
(Peer reviewed; Journal article, 2021)Medical image segmentation has gained greater attention over the past decade, especially in the field of image-guided surgery. Here, robust, accurate and fast segmentation tools are important for planning and navigation. ... -
Numerical Experiments on a Deep Learning Approach to Solving High- Dimensional Partial Differential Equations
(Master thesis, 2020)Denne masteroppgaven utforsker en metode for å løse høydimensjonale partielle differentialligninger ved bruk av dyp læring. Numerisk analyse av partielle differentialligninger er av stor betydning ettersom det kan beskrive ... -
A numerical framework for estimating the effective reproduction number of infectious diseases from compartmental epidemic models
(Peer reviewed; Journal article, 2021)We present a numerical framework for estimating the effective reproduction number of infectious diseases from compartmental epidemic models. The idea is to augment the reproduction number as an extended state variable in ... -
Numerical integration in inverse problems for ordinary differential equations
(Master thesis, 2022)Dersom ein kjenner punkter av løysinga til ei ordinær differensiallikning (ODE), handlar det inverse problemet om å finne ein approksimasjon av vektorfeltet. Ei forskingsretning som nyleg har vorte særs aktiv, dreier seg ... -
Numerical investigation of blade roughness impact on the aerodynamic performance and wake behavior of horizontal axis wind turbine
(Peer reviewed; Journal article, 2023)This research focuses on the effect of leading-edge erosion on the performance of wind turbines, specifically the GE1.5XLE horizontal axis wind turbine. The blade element momentum (BEM) method is used to predict the ... -
Numerical investigation of modeling frameworks and geometric approximations on NREL 5 MW wind turbine
(Journal article; Peer reviewed, 2018)The key to the better design of an industrial scale wind turbine is to understand the influence of blade geometry and its dynamics on the complicated flow-structures. An industrial-scale wind turbine can be numerically ... -
Numerical Methods and Brute Force Optimisation for a General Formulation of the Mean Field Game Equations
(Master thesis, 2015)This thesis considers the numerical solution of a general formulation of the mean field game (MFG) equations. MFG are a relatively new field with few general results but with many modelling applications. The MFG equations ... -
Numerical Methods for Electromagnetic Field Propagation over an Undulating Surface in the Frequency Region of 110 MHz
(Master thesis, 2013)When an aircraft is landing, the use of the Instrument Landing System (ILS) is essential. It provides navigation signals for the landing aircraft. The localizer transmits the signals for horizontal navigation, and is ... -
Numerical Methods for Highly Oscillatory Problems
(Doktoravhandlinger ved NTNU, 1503-8181; 2010:115, Doctoral thesis, 2010)Classical quadrature methods, i.e. methods for numerical integration,require discretizations that become more fine the more the integrandis oscillating. Conversely, asymptotic methods provide approximationsof the same ... -
Numerical Methods for Nonholonomic Mechanics
(Master thesis, 2009)We discuss nonholonomic systems in general and numerical methods for solving them. Two different approaches for obtaining numerical methods are considered; discretization of the Lagrange-d'Alembert equations on the one ... -
Numerical Methods for Nonholonomic Rigid Body Dynamics
(Master thesis, 2011)We discuss general nonholonomic systems on manifolds in the setting of both continousand discrete mechanics, before focusing on systems with symmetry that enable a reduction of the equations of motion to a quotient space ... -
Numerical Methods for Optical Interference Filters
(Master thesis, 2009)We present the physics behind general optical interference filters and the design of dielectric anti-reflective filters. These can be anti-reflective at a single wavelength or in an interval. We solve the first case exactly ...