Blar i SINTEF Open på tidsskrift "Journal of Computational Physics"
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A robust method for calculating interface curvature and normal vectors using an extracted local level set
(Journal article; Peer reviewed, 2014)The level-set method is a popular interface tracking method in two-phase flow simulations. An often-cited reason for using it is that the method naturally handles topological changes in the interface, e.g. merging drops, ... -
An adaptive Cartesian embedded boundary approach for fluid simulations of two- and three-dimensional low temperature plasma filaments in complex geometries
(Peer reviewed; Journal article, 2019)We review a scalable two- and three-dimensional computer code for low-temperature plasma simulations in multi-material complex geometries. Our approach is based on embedded boundary (EB) finite volume discretizations of ... -
Computation of three-dimensional three-phase flow of carbon dioxide using a high-order WENO scheme
(Journal article; Peer reviewed, 2017)We have developed a high-order numerical method for the 3D simulation of viscous and inviscid multiphase flow described by a homogeneous equilibrium model and a general equation of state. Here we focus on single-phase, ... -
Enhanced multiscale restriction-smoothed basis (MsRSB) preconditioning with applications to porous media flow and geomechanics
(Peer reviewed; Journal article, 2021)A novel method to enable application of the Multiscale Restricted Smoothed Basis (MsRSB) method to non M-matrices is presented. The original MsRSB method is enhanced with a filtering strategy enforcing M-matrix properties ... -
Pseudo-Hamiltonian neural networks for learning partial differential equations
(Peer reviewed; Journal article, 2024)Pseudo-Hamiltonian neural networks (PHNN) were recently introduced for learning dynamical systems that can be modelled by ordinary differential equations. In this paper, we extend the method to partial differential equations. ... -
Stochastic and self-consistent 3D modeling of streamer discharge trees with Kinetic Monte Carlo
(Peer reviewed; Journal article, 2024)This paper contains the foundation for a new Particle-In-Cell model for gas discharges, based on Îto diffusion and Kinetic Monte Carlo (KMC). In the new model the electrons are described with a microscopic drift-diffusion ... -
Transient electrohydrodynamic flow with concentration-dependent fluid properties: Modelling and energy-stable numerical schemes
(Peer reviewed; Journal article, 2020)Transport of electrolytic solutions under influence of electric fields occurs in phenomena ranging from biology to geophysics. Here, we present a continuum model for single-phase electrohydrodynamic flow, which can be ...