Browsing NTNU Open by Author "Klemetsdal, Øystein Strengehagen"
Now showing items 1-4 of 4
-
Dynamic Coarsening and Local Reordered Nonlinear Solvers for Simulating Transport in Porous Media
Klemetsdal, Øystein Strengehagen; Lie, Knut-Andreas (Journal article; Peer reviewed, 2020)We present a robust and flexible sequential solution approach in which the flow equation is solved on the original grid, whereas the transport equations are solved with a new dynamic coarsening method that adapts the grid ... -
Efficient reordered nonlinear Gauss–Seidel solvers with higher order for black-oil models
Klemetsdal, Øystein Strengehagen; Rasmussen, Atgeirr Flø; Møyner, Olav; Lie, Knut-Andreas (Journal article; Peer reviewed, 2019)The fully implicit method is the most commonly used approach to solve black-oil problems in reservoir simulation. The method requires repeated linearization of large nonlinear systems and produces ill-conditioned linear ... -
Efficient Solvers for Field-Scale Simulation of Flow and Transport in Porous Media
Klemetsdal, Øystein Strengehagen (Doctoral theses at NTNU;2019:374, Doctoral thesis, 2019)The first part of the thesis serves as an introduction to modelling of flow and transport in porous media from the perspective of reservoir simulation. We discuss generation of computational grids and discretization ... -
Evaluating thermal losses and storage capacity in high-temperature aquifer thermal energy storage (HT-ATES) systems with well operating limits: insights from a study-case in the Greater Geneva Basin, Switzerland
Collignon, Marine; Klemetsdal, Øystein Strengehagen; Møyner, Olav; Alcanié, Marion; Rinaldi, Antonio Pio; Nilsen, Halvor Møll; Lupi, Matteo (Peer reviewed; Journal article, 2020)High-temperature aquifer thermal energy storage (HT-ATES) may play a key role in the development of sustainable energies and thereby in the overall reduction of CO2 emission. To this end, a thorough understanding of the ...