Blar i NTNU Open på forfatter "Støvneng, Jon Andreas"
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Head-On Beam-Beam Interactions in High-Energy Hadron Colliders - GPU-Powered Modelling of Nonlinear Effects
Furuseth, Sondre Vik (Master thesis, 2017)The performance of high-energy circular hadron colliders, as the Large Hadron Collider, is limited by beam-beam interactions. The strength of the beam-beam interactions will be higher after the upgrade to the High-Luminosity ... -
High Precision, Full Potential Electronic Transport Simulator: Implementation and First Results
Selvåg, Juri (Master thesis, 2014)During the work with this master s thesis a number of important upgrades has been madeto the Full Band Monte Carlo program that is under development at FFI.The program is now able to simulate charge transport in Hg0.72Cd0.28Te, ... -
High-Resolution Large Time-Step Schemes for Hyperbolic Conservation Laws
Bore, Sigbjørn Løland (Master thesis, 2015)This thesis is concerned with numerical methods for solving hyperbolic conservation laws. A generalization of large time-step schemes (LTSS) to high resolution is presented. The generalization is based on the previous work ... -
Høyttalersimulering med mode-basert metode
Evensen, Karen Brastad (Master thesis, 2014)I denne masteroppgaven er det tatt utgangspunkt i modellering av sirkulære horn ved Modal metode som beskrevet i \cite{Kemp}. Denne metoden er blitt videreutviklet til å fungere for konkave, vibrerende strukturer ved at ... -
Implementing a Full-Band Monte Carlo Model for Zincblende Structure Semiconductors
Bergslid, Tore Sivertsen (Master thesis, 2013)During the work with this master's thesis a number of improvements have been made to the Monte Carlo program being developed at FFI. Algorithms for handling numerical band and scattering rate data have been constructed and ... -
Investigation of a Water Fraction Meter Based on the High Frequency Electromagnetic Field Technique Using an Uninsulated Inside Coil
Boge, Lars Helge (Master thesis, 2013)An uninsulated inside coil configuration of the water fraction meter designed by Hammertech AS has been investigated. The general principle behind the water fraction meter is to detect induced eddy currents in conductive ... -
Karbondioksid i fluorohektoritt og nikkeldihydroksid med tetthetsfunksjonalteori
Reklev, Ståle (Master thesis, 2023)Leire har vist seg å ha gode egenskaper for fangst og lagring av karbondioksid. Dette er et tiltak for å redusere klimagassutslipp, men det kan kanskje være mulig å dope leira med kationer som kan forbedre disse egenskapene. I ... -
Laser Induced Incandescence with Long Pulse Duration
Hverven, Stine Myhre (Master thesis, 2013)Laser Induced Incandescence (LII) is a technique used to observe soot concentration and particle size in a flame. The LII signal is captured by an intensified CCD camera. Laser light impacts and heats soot particles within ... -
Light Emission of Streamers in Dielectric Liquids
Chen, Jian Bin Ben (Master thesis, 2017)Liquid insulation is widely used in various high voltage equipments crucial to a modern electrical grid. It is thus important to understand the behaviour and limits of performance for such liquids. In these experiments, ... -
Magnus Expansion in Gauge Theories
Fredheim, Håkon Richard (Master thesis, 2022)Noen uttrykk for løsningen på en ordinær differensiallikning utledes ved hjelp av en metode som innebærer Taylor-rekkeutvikling av vektorfeltet som definerer differensiallikningen. En generalisering av et kjent resultat ... -
Måling og modellering av vanntransportegenskaper til svelleband til høyspenningskabler
Orvedal, Ingrid (Master thesis, 2011)Vanntrevekst er en av de viktigste grunnene til elektrisk havari i høyspenningskabler.Vanntrær begynner å vokse når den relative fukten(RH) i kabelisolasjonenoverstiger 70 %RH. Det er derfor viktig å holde en lav fuktigheti ... -
Modeling of Heat Transfer in Two-Phase Flow Using the Level-Set Method
Gjennestad, Magnus Aashammer (Master thesis, 2013)The implementation of a two-phase flow model, developed at SINTEF Energy Research and relying on the level-set method, was extended through the discretization and implementation of an advection-diffusion equation for ... -
Modeling the propagation of streamers in liquids - The Townsend-Meek criterion and a novel model for photoionization
Madshaven, Inge (Master thesis, 2015)Conducting channels forms when a dielectric liquid is subjected to high electric stress. These channels are know as streamers, and if allowed the time to form and propagate, they can lead to an electrical breakdown. Sintef ... -
Modelling Control Loops for SPS-LHC Beam Transfer Studies
Karlsen-Bæck, Birk Emil (Master thesis, 2022)For HL-LHC æraen kan overføring av partikkelstråler fra SPS føre til tap av partikler og begrensninger i elektrisk effekt i radiofrekvens systemene til LHC. Presise numeriske modeller av kontrollsystemene i både SPS og LHC ... -
Modelling of Aerodynamic Drag in Alpine Skiing
Elfmark, Ola (Master thesis, 2017)Most of the breaking force in the speed disciplines in alpine skiing is caused by the aerodynamic drag, and a better knowledge of the drag force is therefore desirable to gain time in races. In this study a complete database ... -
Monte Carlo Simulation of Photoconductive Terahertz Sources in Mercury Cadmium Telluride
Chirac, Theophile Jean Marie (Master thesis, 2016)In this master's thesis we explore the physics of a photoconductive terahertz emitter and diverse methods to increase its power emission. A way to simulate it via a Monte Carlo first principle simulator is presented, taking ... -
Multiphysical modeling of a next generation PEM electrolyser
Østenstad, Jenny (Master thesis, 2023)Anvendelse av hydrogen som energibærer er en viktig teknologi for å møte verdens økende energibehov på en måte frigjort fra karbon. Elektrolyse av vann er en bærekraftig metode å produsere hydrogen på, men fagfeltet ligger ... -
Numerical study of the droplet-interface dynamic related to liquid-liquid separators
Rusten, Emile Simen Augustin (Master thesis, 2013)The CFD package OpenFoam with the VOF approach of the interFoam solver is used to simulate water drops in Exxsol D80 oil, with diameter ranging from 100 micrometer to 1000 micrometer. Parasitic currents are caused by the ... -
Numerical Study of the Interaction of Flow over Two Airfoils in Relative Motion
Tveiterås, Vebjørn (Master thesis, 2011)Computational fluid dynamics (CFD) was be used to investigate aspects of interaction of flow over two airfoils in relatie motion in detail.%Problem statement2D tandem airfoil setups were studied, where the leading airfoil ... -
Optical Properties of Intermediate Band Ca6FeN5 and Related Materials: A Density Functional Theory Study
Gjelsvik, Preben (Master thesis, 2023)Denne oppgaven beskriver og demonstrerer en metode for å identifisere nye mellombåndsmaterialer for solceller ved å bruke tetthetsfunksjonalteori. Ca6FeN5 og varianter konstruert ved å erstatte Ca og N med henholdsvis Mg ...