Blar i Department of Mathematics på emneord "753109"
Viser treff 21-40 av 91
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Exact solutions for shoaling waves in shallow water
(Master thesis, 2017-03-22)The dynamics of shallow-water waves at the surface of an inviscid and incompressible fluid over a background shear flow approaching a sloping beach are investigated. First, we derive the nonlinear shallow-water equations ... -
Existence and Uniqueness of Non-linear, Possibly Degenerate Parabolic PDEs, with Applications to Flow in Porous Media
(Master thesis, 2017-07-26)In the branch of mathematical analysis known as functional analysis, one mainly studies functions defined on vector spaces. For partial differential equations (PDEs), this analysis has proven to be a mighty resource of ... -
Fast Image Segmentation Using Variational Optimization Methods With Edge Detector
(Master thesis, 2014-06-02)In this work, we apply techniques in variational optimization to image segmentation. We study three different segmentation models: one is based on the active contour method, the second is based on a piecewise constant level ... -
Finite-Element Modelling of Buoyancy-Driven Flow in Natural Geothermal Systems
(Master thesis, 2010-05-27)Finite element modelling of buoyancy driven flow in geothermal systems is presented in this thesis. The main focus is on the development of a numerical modelling tool. The program developed is tested for classical benchmarks ... -
Fish louse and treatment options: A mathematical approach
(Master thesis, 2018-09-04) -
Forståelse av matematiske tekstoppgaver. Hva bør man som lærer ha tenkt gjennom når man ønsker at elevene skal jobbe med tekstoppgaver i matematikk?
(Master thesis, 2018-06-21)Denne studien tar for seg matematiske tekstoppgavers oppbygning og ser på ulike typer utfordringer elever kommer over i møte med tekstoppgaver. Utfordringene handler i stor grad om det å oversette teksten i tekstoppgaver ... -
Fourier analysis on abelian groups; theory and applications
(Master thesis, 2017)Fourier analysis expresses a function as a weighted sum of complex exponentials. The Fourier machinery can be applied when a function is defined on a locally compact abelian group (LCA). The groups R, T = R / Z, Z and Z_n ... -
Gasslekkasjar i Marine miljø
(Master thesis, 2012-06-19)I denne masteroppgåva studerast fluidstrøymingar gjennom marine sediment, og målet er å vurdere om ein enkel matematisk modell klarar å beskrive og bevare karakteristiske trekk for prosessen. Denne drøftinga vil baserast ... -
Generated Sound Waves in Corrugated Pipes
(Master thesis, 2012-06-01)This paper studies sound waves generated in corrugated pipes by using computational fluid dynam- ics. The author did not have any prior experience in computational fluid dynamics and therefore a substantial part was dedicated ... -
Gode rank 1 latticereglar av høg dimensjon
(Master thesis, 2011-06-01)Oppgåva omhandlar numeriske integrasjonsreglar av trigonometrisk grad kalla latticereglar, med særskild fokus på å utvikle og teste algoritmer for å finne gode latticereglar av rank 1. For at teksten skal kunne stå ... -
Heat Transfer Upscaling in Geothermal Reservoirs
(Master thesis, 2015-11-20)In this thesis we implement a numerical model of heat transfer in geothermal reservoirs. We use existing pressure and flow transport solvers as a starting point to investigate discretization techniques for a convection-conduction ... -
Hybrid Modeling of the N-Body Problem with Applications to Astrophysics
(Master thesis, 2022-06-01)Over the last years, the field of hybrid modeling, the concept of combining data-driven machine learning models and numerical solution methods to simulate a physical system, has seen an immense increase in research. This ... -
Impact of compressibility in vertically integrated models for CO2 storage
(Master thesis, 2012-06-01)Recent work have shown that simplified models obtained by vertical integration give reasonable approximations for CO2 migration. Most of the work previously done on this topic assumes that CO2 is an incompressible fluid, ... -
Implementation of an MPFA/MPSA-FV Solver for the Unsaturated Flow in Deformable Porous Media
(Master thesis, 2018-06-22)The Unsaturated Flow In Deformable Porous Media (UFIDPM) plays a crucial role in several academic and industrial applications such as; cracks induced by desiccation, collapsing soils, ground movement involving expansive ... -
Internal pressure gradient errors in sigma-coordinate ocean models: The finite volume and weighted approaches
(Master thesis, 2010-04-26)Terrain-following (sigma-coordinate) models are widely used. They are often advantageous when dealing with large variations in topography, and give an accurate representation of the bottom and top boundary layers. However, ... -
Investigation of long-wave model equations for a liquid CO2-seawater interface in deep water
(Master thesis, 2017-11-04) -
Investigations of the Kaup-Boussinesq model equations for water waves
(Master thesis, 2014-06-02)The Kaup-Boussinesq system is a coupled system of nonlinear partial differential equations which has been derived as a model for surface waves in the context of the Boussinesq scaling, and it has also been derived for an ... -
Investigations of the Modified Navier-Stokes Equations in One Dimension
(Master thesis, 2014-06-02)In this thesis we have investigated the Brenner-Navier-Stoke equations in one spatial dimension. These are a modified version of the Navier-Stokes equations, where the modification relates to a mass diffusion term. This ... -
Iterative schemes for solving coupled, non-linear flow and transport in porous media
(Master thesis, 2016-12-24)In this thesis we compare different iterative approaches for solving the non-linear, coupled multiphase flow and reactive transport in porous media. Especially, we consider two-phase flow and one a-half phase flow (modeled ... -
Lagrangian dynamics for solid multi-body systems with the Moving Frame formalism
(Master thesis, 2018-12-11)Classical mechanics is the study of the motion of particles, solid bodies or of systems of bodies, and the effects of forces and moments on them. The dynamical behavior may either be studied by the application of Newtonian ...