- E-mailivar.stefansson@uib.no
- Visitor AddressAllégaten 41Realfagbygget5007 BergenRoom4A15f
- Postal AddressPostboks 78035020 Bergen
Ivar Stefansson is a researcher in the Porous Media Group at the Department of Mathematics. His research is related to development and implementation of numerical methods and simulation technology for fractured porous media. He is one of the core developers of the PorePy simulation toolbox.
Academic article
- (2024). Flexible and rigorous numerical modelling of multiphysics processes in fractured porous media using PorePy. Results in Applied Mathematics. 100428 pages.
- (2023). Numerical Treatment of State-Dependent Permeability in Multiphysics Problems. Water Resources Research.
- (2021). Verification benchmarks for single-phase flow in three-dimensional fractured porous media. Advances in Water Resources.
- (2021). PorePy: an open-source software for simulation of multiphysics processes in fractured porous media. Computational Geosciences. 243-265.
- (2021). Numerical Modelling of Convection-Driven Cooling, Deformation and Fracturing of Thermo-Poroelastic Media. Transport in Porous Media. 371-394.
- (2021). Hydro-mechanical simulation and analysis of induced seismicity for a hydraulic stimulation test at the Reykjanes geothermal field, Iceland. Geothermics. 1-16.
- (2021). A fully coupled numerical model of thermo-hydro-mechanical processes and fracture contact mechanics in porous media. Computer Methods in Applied Mechanics and Engineering.
- (2020). Fault slip in hydraulic stimulation of geothermal reservoirs: Governing mechanisms and process-structure interaction. The Leading Edge. 893-900.
- (2019). Implementation of mixed-dimensional models for flow in fractured porous media. Lecture Notes in Computational Science and Engineering. 573-580.
- (2018). Finite-volume discretisations for flow in fractured porous media. Transport in Porous Media. 439-462.
- (2018). Benchmarks for single-phase flow in fractured porous media. Advances in Water Resources. 239-258.
Lecture
- (2023). Network Meeting Bergen: Ground Source Heat Pump Energy System .
- (2023). GeoEnergy 2023.
- (2017). Coupled processes in geothermal systems.
Academic lecture
- (2024). Simulation of THMC processes in fractured porous media .
- (2023). Modeling and Simulation of Fracture Deformation in Coupled Problems.
- (2023). Elastic normal fracture deformation in thermoporomechanical media.
- (2022). Modeling and Simulation of Thermo-Hydro-Mechanical-Chemical Processes in Fractured Rocks with Applications to Geothermal Energy.
- (2022). Mixed-dimensional hydromechanical modelling of an in situ hydroshearing experiment.
- (2021). Thermal fracturing and natural convection: A hidden source of geothermal activity in the earth’s crust?
- (2021). Discrete Fracture-Matrix Modelling of Coupled THM Processes and Fracture Deformation.
- (2020). Modelling of process-structure interaction resulting from fluid injection in fractured subsurface systems.
- (2020). A simulation model for fracture reactivation accounting for thermo-hydro-mechanical forces with applications to geothermal systems.
- (2019). Numerical Methods for Flow in Fractured Porous Media in a Unified Implementation.
- (2019). Mixed-dimensional discrete fracture matrix models with heterogeneous discretization and non-matching grids.
- (2019). Enhancing Geothermal Reservoirs – Modelling and Analysis of Hydraulic and Thermal Stimulation.
- (2018). Unified modeling and discretization of flow in fractured porous media.
- (2018). PorePy: A Python Simulation Tool for Fractured and Deformable Porous Media.
- (2018). Modelling of thermal shock induced fracture growth.
- (2017). [2] Benchmarking and comparison of numerical methods: overall considerations and a recent study of methods for flow in fractured porous media, Flow in Deformable Porous Media: Numerics and Benchmarks.
- (2017). PorePy: A Python Simulation Tool for Fractured and Deformable Porous Media.
- (2017). Handling of Fractures and Intersections in Finite Volume Methods.
- (2017). Discretization of mixed-dimensional problems using legacy codes.
Software
- (2023). PorePy: A Simulation Tool for Fractured and Deformable Porous Media, version 1.8.1.
- (2021). PorePy versjon 1.5 (simuleringsverktøy for prosesser i oppsprukne porøse medier).
- (2020). PorePy: Python Simulation Tool for Fractured and Deformable Porous Media. Versjon 1.3.
- (2019). PorePy: A Simulation Tool for Fractured and Deformable Porous Media written in Python, v.1.0.
- (2018). PorePy: A Simulation Tool for Fractured and Deformable Porous Media written in Python, versjon 0.4.3.
- (2017). PorePy: A Simulation Tool for Fractured and Deformable Porous Media written in Python.
- (2017). PorePy: A Python Simulation Tool for Fractured and Deformable Porous Media. Version 0.2.
Popular scientific article
- (2022). Slik kan vi hente stabil, fornybar energi fra under bakken. Forskersonen.no.
- (2022). Slik kan vi hente stabil, fornybar energi fra under bakken. https://forskning.no/.
- (2019). Geotermisk energiproduksjon. Miljømagasinet. 21-21.
Documentary
- (2022). Runar Lie Berge - Numerical methods for coupled processes in fractured porous media.
- (2022). Ana Budiša - Preconditioning for Flow in Fractured Porous Media.
Academic chapter/article/Conference paper
- (2021). Modelling of Thermally Induced Fracture Slip caused by Fluid Injection During Geothermal Production.
- (2020). Finite Volume Discretisation of Fracture Deformation in Thermo-poroelastic Media. 8 pages.
Poster
- (2019). Simulation of temperature and pressure driven fracture deformation.
- (2017). Finite Volume Methods for Flow and Transport in 3-Dimensional Fractured Porous Media.
- (2017). Coupling Conditions for Finite Volume Methods for Fractured Porous Media.
More information in national current research information system (CRIStin)