Browsing Department of Mathematics by Title
Now showing items 403-422 of 423
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A unified multilevel framework of upscaling and domain decomposition
(International Center for Numerical Methods in Engineering (CIMNE), 2010)We consider multiscale preconditioners for a class of mass-conservative domain-decomposition (MCDD) methods. For the application of reservoir simulation, we need to solve large linear systems, arising from finite-volume ...Conference object -
Upscaled modeling of CO2 injection and migration with coupled thermal processes
(Elsevier, 2013)A practical modeling approach for CO2 storage over relatively large length and time scales is the vertical-equilibrium model, which solves partially integrated conservation equations for flow in two lateral dimensions. ...Journal article -
Upscaling of Nonisothermal Reactive Porous Media Flow under Dominant Péclet Number: The Effect of Changing Porosity
(Society for Industrial and Applied Mathematics, 2016)Motivated by rock-fluid interactions occurring in a geothermal reservoir, we present a two-dimensional pore scale model of a thin strip consisting of void space and grains, with fluid flow through the void space. Ions in ...Journal article -
Using sensitivities and vertical-equilibrium models for parameter estimation of CO2 injection models with application to Sleipner data
(Elsevier, 2017-07)A key part of planning CO2 storage sites is to devise a monitoring strategy with proper modelling support. Herein, we show how a simulation framework that incorporates adjoint-based sensitivities can be combined with ...Journal article -
Using the bottleneck distance to compare homological methods of detecting atmospheric rivers
(The University of Bergen, 2018-02-21)Master thesis -
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Value of different data types for estimation of permeability
(The University of Bergen, 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 ...Master thesis -
Vascular responses to radiotherapy and androgen-deprivation therapy in experimental prostate cancer
(BioMed Central, 2012-05-23)Background: Radiotherapy (RT) and androgen-deprivation therapy (ADT) are standard treatments for advanced prostate cancer (PC). Tumor vascularization is recognized as an important physiological feature likely to impact on ...Peer reviewedJournal article -
Verifisering av ein tredimensjonal bølgemodell ved hjelp av eksperimentelle data
(The University of Bergen, 2001)Master thesis -
Vertical Equilibrium Flow Models with Fully Coupled Geomechanics for CO2 Storage Modeling, Using Precomputed Mechanical Response Functions
(Elsevier, 2017)Vertical equilibrium (VE) models have proved to be attractive for simulation of \co storage scenarios. Their primary advantage is a substantial reduction in computational requirements compared to standard 3D simulation ...Journal article -
Vertical equilibrium models for coupled flow and transport problems
(The University of Bergen, 2017-12-20)A better understanding of viscous fingering can help to increase the recovery of hydrocarbons. The need for modelling the impact of viscous fingering is great as it largely dictates the sweep quality of hydrocarbons in a ...Master thesis -
Vertically averaged equations with variable density for CO2 flow in porous media
(Springer, 2015-03)Carbon capture and storage has been proposed as a viable option to reduce CO 2 emissions. Geological storage of CO 2 where the gas is injected into geological formations for practically indefinite storage, is an ...Journal article -
Vertically Averaged Models for CO2 Storage in Porous Media
(The University of Bergen, 2008)Master thesis -
Vertically integrated models for coupled two‐phase flow and geomechanics in porous media
(American Geophysical Union, 2016-02)Models of reduced dimensionality have been found to be particularly attractive in simulating the fate of injected CO2 in supercritical state in the context of carbon capture and storage. This is motivated by the confluence ...Journal article -
Visualisering og konkretisering av omdreiningslegemer ved bruk av Geogebra 3D og 3D-printer
(The University of Bergen, 2017-07-26)Digital programvare og digitale verktøy er i stadig utvikling, og matematiske programmer, som for eksempel Geogebra, gir oss mulighet til å visualisere matematikk på en enklere og raskere måte enn tidligere, både gjennom ...Master thesis -
Visuelle løsningsstrategier til sannsynlighetsoppgaver - En studie av fem videregående elevers bruk av ulike visuelle løsningsstrategier i sannsynlighetsregning
(The University of Bergen, 2017-07-26)Denne masteroppgaven handler om elever på videregående sin bruk av visuelle løsningsstrategier i møte med sannsynlighetsoppgaver. Formålet var blant annet å undersøke hvilke ulike visuelle løsningsstrategier elever benytter ...Master thesis -
Volume preserving numerical integrators for ordinary differential equations
(The University of Bergen, 2013-11-08)Doctoral thesis -
Vurdering for læring i matematikk - vurderingspraksis i 1YT i to klassar på elektrofag
(The University of Bergen, 2016-05-31)Denne oppgåva handlar om formativ vurdering i matematikk. I problemstillinga spør ein etter i kva grad kapittel- og lekseprøver i 1YT har ein formativ funksjon for elevar på elektrofag. Ein skil mellom formål og funksjon ...Master thesis -
Wave breaking in long wave models and undular bores
(The University of Bergen, 2015-12-18)Bores are a well known phenomena in fluid mechanics, although their occurrence in nature is relatively rare. The circumstances in which they occur is usually when a tidal swell causes a difference in surface elevation ...Master thesis -
Weak solutions and convergent numerical schemes of Brenner-Navier-Stokes equations
(2015-01-20)Lately, there has been some interest in modifications of the compressible Navier-Stokes equations to include diffusion of mass. In this paper, we investigate possible ways to add mass diffusion to the 1-D Navier-Stokes ...Research report
