Arbeids- og kompetanseområde
My research focuses on modeling and simulation of flow and transport in porous media. Porous media are media consisting of both solid space and void space, in which a fluid can flow. This can for example be sponges or soil. Technical applications like fuel cells also use porous materials. For such porous media I am interested in how to model and simulate flow and transport, in particular when there are coupled processes and interactions between scales. Coupled processes can for example be that the fluid contains a dissolved solute which can precipitate as a solid and hence change the structure of the porous medium. In terms of scales, I am focusing on the pore scale and averaged Darcy scale: on the pore scale one can describe the location of fluid and solid explicitly, while on the averaged Darcy scale one only uses averages like the amount of fluid and solid in a certain volume. Such averaged models are useful when simulating large applications like geothermal reservoirs, but can be difficult to find. Hence, in my research I try to find improved models for how coupled processes interact with each other in these scales, to allow efficient simulations of large applications. These processes are also typically nonlinear and I am also interested in designing good nonlinear solver schemes.
ADA501
MAT202
MAT301
- Strøyming og transport i porøse media
- Multiskalametodar og simuleringar
- Lineær stabilitetsanalyse
- Konserverande diskretiseringsmetodar for partielle differensiallikningar
- Matematisk modellering av faseendringar
Engineering Computing
Publikasjonar
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Upscaling and Effective Behavior for Two-Phase Porous-Medium Flow Using a Diffuse Interface Model
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Phase-field modeling and effective simulation of non-isothermal reactive transport
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Micro Manager: a Python package for adaptive and flexible two-scale coupling
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Publisher Correction: Droplet Formation, Growth and Detachment at the Interface of a Coupled Free‑FLow–Porous Medium System: A New Model Development and Comparison (Transport in Porous Media, (2023), 149, 2, (389-419), 10.1007/s11242-023-01944-2)
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Droplet Formation, Growth and Detachment at the Interface of a Coupled Free-FLow–Porous Medium System: A New Model Development and Comparison
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Multiscale modeling and simulation of transport processes in porous media [Habilitasjonsavhandling]
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Dynamic Effects during the Capillary Rise of Fluids in Cylindrical Tubes
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Two-phase Flow Dynamics at the Interface Between GDL and Gas Distributor Channel Using a Pore-Network Model
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A Three-Dimensional Homogenization Approach for Effective Heat Transport in Thin Porous Media
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Upscaling a Navier-Stokes-Cahn-Hilliard model for two-phase porous-media flow with solute-dependent surface tension effects
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Evaporation-Driven Density Instabilities in Saturated Porous Media
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Comparison study of phase-field and level-set method for three-phase systems including two minerals
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Solution approaches for evaporation-driven density instabilities in a slab of saturated porous media
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Multi-scale three-domain approach for coupling free flow and flow in porous media including droplet-related interface processes
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On an averaged model for immiscible two-phase flow with surface tension and dynamic contact angle in a thin strip
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A two-scale iterative scheme for a phase-field model for precipitation and dissolution in porous media
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Permeability Estimation of Regular Porous Structures: A Benchmark for Comparison of Methods
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Numerical homogenization of non-linear parabolic problems on adaptive meshes
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A Conservative Phase-Field Model for Reactive Transport
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On upscaling pore-scale models for two-phase flow with evolving interfaces
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Upscaled equations for two-phase flow in highly heterogeneous porous media: Varying permeability and porosity
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Phase field modeling of precipitation and dissolution processes in porous media: Upscaling and numerical experiments
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Structure and forcing of observed exchanges across the Greenland-Scotland Ridge
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Effective Behavior Near Clogging in Upscaled Equations for Non-isothermal Reactive Porous Media Flow
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Kan Golfstrømmen stanse?
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Upscaling of Nonisothermal Reactive Porous Media Flow under Dominant Péclet Number: The Effect of Changing Porosity
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Modeling of heat transfer in porous media in the context of geothermal energy extraction
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Upscaling of non-isothermal reactive porous media flow with changing porosity
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A model for non-isothermal flow and mineral precipitation and dissolution in a thin strip
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An Approach for Investigation of Geochemical Rock-Fluid Interactions
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Pore scale model for non-isothermal flow and mineral precipitation and dissolution in a thin strip
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35 prosent av varmen i jordvarmebrønner kan gå tapt
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Jordnær oppvarming
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Coupling between temperature, solute transport and porosity changes in a geothermal reservoir
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Influence of convection on production from borehole heat exchangers
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Influence of convection on production from borehole heat exchangers
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Influence of natural convection in a porous medium when producing from borehole heat exchangers
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Linear and nonlinear convection in porous media between coaxial cylinders
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Linear and nonlinear convection in porous media between coaxial sylinders
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Challenges in mathematical modeling and numerical simulation of geothermal systems
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Convection cells in porous media. Seminar on flow in porous media and multiscale methods