Now showing items 31-40 of 260
Monotonicity Conditions for Discretization of Parabolic Conservation Laws
(The University of Bergen, 2009-06-02)
In the recent years monotonicity of control volume methods for elliptic equations has been studied. A discrete maximum principle is established in Keilegavlen et al. , and a set of monotonicity conditions on general ...
Danning av kvervlar og frontar på sub-mesoskala i havet
(The University of Bergen, 2001)
Sequestration of Carbon in Saline Aquifers Mathematical and Numerical Analysis
(The University of Bergen, 2004-04-30)
The work in this thesis focuses equally on two main topics. The first of these subjects deals with development of criteria for monotonicity of con- trol volume methods. These methods are important and frequently used ...
Potensialet for dyp geotermisk energi i Norge: Modellering av varmeutvinning fra konstruerte geotermiske system
(The University of Bergen, 2010-10-05)
Dette prosjektet tar for seg to ulike modeller for et konstruert geotermisk system; et lukket enkeltbrønn-system og et åpent, sprekkdominert system. Enkeltbrønn-systemet er modellert eksplisitt, og modellen er også tilpasset ...
Capturing the coupled hydro-mechanical processes occurring during CO2 injection – example from In Salah
At In Salah, CO2 is removed from the production stream of several natural gas fields and re-injected into a deep and relatively thin saline formation, in three different locations. The observed deformation on the surface ...
Efficient global minimization methods for variational problems in imaging and vision
(The University of Bergen, 2011-08-19)
Energy minimization has become one of the most important paradigms for formulating image processing and computer vision problems in a mathematical language. Energy minimization models have been developed in both the ...
Bruk av multivariate metoder til å analysere vekst hos individmerket atlantisk laks med hensyn på lysregime, kjønn og modning
(The University of Bergen, 2005)
Dynamic Capillary Effects in the Simulation of Flow and Transport in Porous Media: A New Linearisation Method
(The University of Bergen, 2014-12-25)
In this thesis mathematical models with and without dynamic capillary effects are developed to model water flow and solute transport through a porous medium. The system of equations are discretised using the finite volume ...
Non-Slit Solutions to the Loewner Equation
(The University of Bergen, 2010-04-30)
We study conditions on the driving term of the Loewner equation which guarantee that the equation generates slits. We construct a new family of examples of non-slit solutions which generalize Kufarev's example, in which ...
Exact and Superconvergent Solutions of the Multi-Point Flux Approximation O-method: Analysis and Numerical Tests
(The University of Bergen, 2014-06-02)
In this thesis we prove the multi-point flux approximation O-method (MPFA) to yield exact potential and flux for the trigonometric potential functions u(x,y)=sin(x)sin(y) and u(x,y)=cos(x)cos(y). This is done on uniform ...