Blar i Department of Mathematics på emneord "VDP::Mathematics and natural science: 400::Mathematics: 410::Applied mathematics: 413"
Viser treff 1-14 av 14
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Co2 trapping in sloping aquafiers: High resolution numerical simulations
(Chapter, 2010) -
Comparison of distance measures in Multimodal registration of medical images
(Master thesis, 2011-06-14)In this thesis I have worked with medical image registration, in particular registration of multimodal images. I have tested the image registration software package FAIR developed by Jan Modersitzki, with particular focus ... -
Convective mixing in geological carbon storage
(Doctoral thesis, 2011-11-25)The industrial era has seen an exponential growth in the atmospheric concentration of carbon dioxide (CO2), resulting mainly from the burning of fossil fuels. This can cause changes in the climate that have severe impacts ... -
Lie–Butcher series and geometric numerical integration on manifolds
(Doctoral thesis, 2011-11-04)The thesis belongs to the field of “geometric numerical integration” (GNI), whose aim it is to construct and study numerical integration methods for differential equations that preserve some geometric structure of the ... -
Linear and Nonlinear Convection in Porous Media between Coaxial Cylinders
(Master thesis, 2011-05-02)In this thesis we develop a mathematical model for describing three-dimensional natural convection in porous media filling a vertical annular cylinder. We apply a linear stability analysis to determine the onset of convection ... -
Modelling the non-Hydrostatic Pressure in σ-coordinate Ocean Models
(Master thesis, 2006-09-22) -
Numerical Methods for Conservation Laws with a Discontinuous Flux Function
(Master thesis, 2011-06-01)When simulating two-phase flow in a porous medium, numerical methods are used to solve the equations of flow, called conservation laws. In the industry, this is done by a reservoir simulator, and the most widely used method ... -
On flow properties of surface waves described by model equations of Boussinesq type
(Doctoral thesis, 2012-03-23) -
On Semi-implicit Splitting Schemes for the Beltrami Color Image Filtering
(Peer reviewed; Journal article, 2011-01-15)The Beltrami flow is an efficient nonlinear filter, that was shown to be effective for color image processing. The corresponding anisotropic diffusion operator strongly couples the spectral components. Usually, this flow ... -
Quality of the Analysis Step in EnKF
(Master thesis, 2011-06-15)In many physical applications we want to characterize the parameters of a system based on indirect observations or measurements. In a reservoir simulator setting, the goal is to simulate the production of hydrocarbons from ... -
Reactive Transport in Porous Media
(Master thesis, 2011-08-01)In this thesis, we show how the common equations for flow in porous media can be expanded to account for geochemical reactions. Furthermore, the complications arising when solving the new equations numerically are described ... -
Robust Control Volume Methods for Reservoir Simulation on Challenging Grids
(Doctoral thesis, 2010-02-19) -
Two Level Additive Schwarz Preconditioner For Control Volume Finite Element Methods
(Master thesis, 2010-09-22)In this thesis we investigate nummerically the convergence properties of the control volume finite element method (CVFEM) preconditioned with a two level overlapping additive Schwarz method. Relevant theory regarding the ... -
Value of different data types for estimation of permeability
(Master thesis, 2011-06-01)The interrelation between sensitivity, non-linearity and scale, associated with the inverse problem of identifying permeability from measurements of fluid flow, is considered. The gouverning equations for fluid flow in a ...