Blar i Department of Mathematics på dokumenttype "Doctoral thesis"
Viser treff 61-80 av 106
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Nonholonomic geometry on finite and infinite dimensional Lie groups and rolling manifolds
(Doctoral thesis, 2012-03-30)Part I: We start by giving some background on the topics discussed in this thesis. The main topic of the thesis is nonholonomic geometry. In Chapter 1 we give an introduction of nonholonomic geometry in the context of ... -
Nonhydrostatic pressure in ocean models with focus on wind driven internal waves
(Doctoral thesis, 2010-02-05) -
Nonlinear Spectrum Analysis based on the Local Gaussian Correlation and Model Selection for Copulas
(Doctoral thesis, 2017-11-20) -
Numerical methods for coupled processes in fractured porous media
(Doctoral thesis, 2019-11-15)Numerical simulations have become essential in the planning and execution of operations in the subsurface, whether this is geothermal energy production or storage, carbon sequestration, petroleum production, or wastewater ... -
Numerical modeling of shear stimulation in naturally fractured geothermal reservoirs
(Doctoral thesis, 2018-03-22)Shear-dilation-based hydraulic stimulations are conducted to create enhanced geothermal systems (EGS) from low permeable geothermal reservoirs, which are initially not amenable to energy production. Reservoir stimulations ... -
Numerical solutions of two-phase flow with applications to CO2 sequestration and polymer flooding
(Doctoral thesis, 2014-12-19)This thesis addresses challenges related to mathematical and numerical modeling of flow in porous media. To address these challenges, two applications are considered: firstly, counter-current two-phase flow in a heterogeneous ... -
Numerical Tools for Multicomponent, Multiphase, Reactive Processes: Flow of CO2 in Porous Medium
(Doctoral thesis, 2006-06-02) -
On flow properties of surface waves described by model equations of Boussinesq type
(Doctoral thesis, 2012-03-23) -
On spiral eddies in the ocean
(Doctoral thesis, 2000) -
On the Relation between Surface Profiles and Internal Flow Properties in Long-Wave Models
(Doctoral thesis, 2017-03-10)In this work, we investigate the internal velocity field in a number of Boussinesq models in non-uniform situations. A coupled BBM-BBM type system of equations is derived in the assumption of water wave propagating over ... -
Optimisation of Production From an Oil-Reservoir Using Augmented Lagrangian Methods
(Doctoral thesis, 2008-02-18)This work studies the use of augmented Lagrangian methods for water flooding production optimisation from an oil reservoir. Commonly, water flooding is used as a means to enhance oil recovery, and due to heterogeneous rock ... -
Oribatid mites in a changing world
(Doctoral thesis, 2011-12-09)The main scope of this thesis is to illustrate the validity of oribatid mites as tools for palaeoecological reconstructions. Palaeoecology studies the responses of past organisms to past environmental changes. This can be ... -
Particle Trajectories in Long Wave Models
(Doctoral thesis, 2024-04-05)Atferden og mønstrene til partikkelbaner i bølgebevegelser i grunt vann har blitt studert av forskere i flere tiår, spesielt har egenskapene til strømmer under overflatebølger i grunt vann blitt studert ved bruk av matematiske ... -
A posteriori error estimation and modeling of unsaturated flow in fractured porous media
(Doctoral thesis, 2022-06-17)This doctoral thesis focuses on three topics: (1) modeling of unsaturated flow in fractured porous media, (2) a posteriori error estimation for mixed-dimensional elliptic equations, and (3) contributions to open-source ... -
Preconditioning for Flow in Fractured Porous Media
(Doctoral thesis, 2020-01-24)The key to reliable simulations of flow in fractured porous media is the proper design, analysis and implementation of numerical methods. These methods should take into account the specific properties of the underlying ... -
Pseudo H-type algebras and sub-Riemannian cut locus
(Doctoral thesis, 2015-02-13) -
PyProp - A Python Framework for Propagating the Time Dependent Schrödinger Equation
(Doctoral thesis, 2009-12-18) -
Quantifying uncertainties when monitoring marine environments in connection with geological storage of CO2
(Doctoral thesis, 2015-06-26) -
Rigorous derivation of some asymptotic models for free water surfaces and interfaces
(Doctoral thesis, 2024-04-26)Opprinnelsen til moderne matematisk hydrodynamikk kan spores tilbake til 1700-tallet. I 1757 publiserte Euler artikkelen der han introduserte ligninger, i dag kjent som Euler likningene, som kan beskrive væskedynamikk [31]. ... -
Robust Control Volume Methods for Reservoir Simulation on Challenging Grids
(Doctoral thesis, 2010-02-19)