Blar i Department of Mathematics på emneord "VDP::Matematikk og Naturvitenskap: 400::Matematikk: 410::Anvendt matematikk: 413"
Viser treff 1-20 av 39
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4D Seismic History Matching Using the Ensemble Kalman Filter (EnKF): Possibilities and Challenges
(Doctoral thesis, 2010-05-27)This research endeavor presents a 4D seismic history matching work flow based on the ensemble Kalman filter (EnKF) methodology. The objective of this work is to investigate the sensitivity of different combinations of ... -
Adaptive Multiscale Methods Based on A Posteriori Error Estimates
(Master thesis, 2010-06-01)We give an overview of different methods for solving highly heterogeneous elliptic problems with multiscale structure and no intuitive scale separation. We compare different finite element variational multiscale methods ... -
Compositional reservoir simulation with emphasis on the IMPSAT formulation
(Doctoral thesis, 2006-04-07) -
A continous Dependence Result for nonlinear degenerate parabolic Equations with spatially dependent flux Function.
(Department of Applied Mathematics report; 146, Research report, 2000-06) -
A Dense Gas Model of Combined Transports and Distributions of Solutes in the Interstitium including Steric and Electrostatic Exclusion Effects, and Comparison with Experimental Data
(Master thesis, 2010-05-27)Mathematical modeling of physiological fluid systems is regarded as an important tool for further understanding of circulatory properties. The interstitium is a fluid filled space outside the cells in the body, and all ... -
Effect of Erroneous Representation of Location and Orientation of EM Receivers for Monitoring of Submarine Petroleum Reservoirs
(Master thesis, 2009-06-02)The receivers in electromagnetic monitoring should optimally be placed exactly in the same location during every single acquisition. However, for technological and economical reasons, the receivers are currently brought ... -
Estimering av permeabilitet med bruk av adaptiv parameterisering
(Master thesis, 2009-07-17) -
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 ... -
Flow Properties of Fully Nonlinear Model Equations for Surface Waves
(Doctoral thesis, 2017-11-03)The focus of this thesis is wave motion in shallow water. In particular, we investigate some properties of flows underneath long waves in shallow water and present the results in two parts. The first part contains a ... -
Image Denoising Algorithms Based on the Dual Formulation of Total Variation
(Master thesis, 2009-07-17) -
Image Inpainting using Nonlinear Partial Differential Equations
(Master thesis, 2005-05-23) -
Implications of Protected Areas to Optimal Management of Marine Resources
(Master thesis, 2005)The thesis explores how the introduction of a marine protected area influences the optimal management of a marine resource, i.e. fish stock. Logistic growth functions are applied to a deterministic model with a migration ... -
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, ... -
A Lanczos-view on Independent Component Analysis of fMRI Data
(Master thesis, 2010-06-04)Analysis of resting-state fMRI data is commonly done by a combination of the two signal processing methods Principal Component Analysis (PCA) and Independent Component analysis (ICA). In this thesis, a possible error caused ... -
Matching univalent functions and related problems of conformal mappings
(Master thesis, 2008) -
Modeling and Upscaling of Deformation Bands in Fault Damage Zones
(Master thesis, 2008) -
Modeling Dissolution within Vertically Averaged Formulations
(Master thesis, 2010-06-10)In this thesis we develop a mathematical model describing the migration and trapping of CO2 when injecting it in a deep saline aquifer. Both the migration and trapping processes are inherently complex, spanning multiple ... -
Modelling of the Shear Dilation Based Hydraulic Stimulation in Enhanced Geothermal Systems Considering Fractures in Different Scales
(Conference lecture, 2016-09)A numerical approach for modelling of shear dilation of existing fractures in hydraulic stimulation of geothermal reservoirs at low elevated pressures is presented. The fractured rock in the reservoir is modelled as a ... -
Modelling of Three-Phase Flow Functions for Applications in Enhanced Oil Recovery
(Doctoral thesis, 2009-05-22)