265 citations · 3.7k across the 158 of their papers we have counts for
157 papers
Effective length scales, dispersion relations, and discrete densities of states for Laplacian eigenvectors on complex networks
Per Arne Rikvold
To construct dispersion relations for diffusion or oscillation processes on random networks, it is necessary to obtain effective length scales for the eigenvectors of a graph Lapla…
Interface instability of two-phase flow in a three-dimensional porous medium
Joachim Falck Brodin, Kevin Pierce, Paula Reis +4
We present an experimental study of immiscible, two-phase fluid flow through a three-dimensional porous medium consisting of randomly-packed, monodisperse glass spheres. Our experi…
Interaction between corner and bulk flows during drainage in granular porous media
Paula Reis, Gaute Linga, Marcel Moura +4
Drainage in porous media can be broken down into two main mechanisms: a primary piston-like displacement of the interfaces through the bulk of pore bodies and throats, and a second…
Multicritical Bifurcation and First-order Phase Transitions in a Three-dimensional Blume-Capel Antiferromagnet
Daniel Silva, Gloria M. Buendia, Per Arne Rikvold
We present a detailed study by Monte Carlo simulations and finite-size scaling analysis of the phase diagram and ordered bulk phases for the three-dimensional Blume-Capel antiferro…
A simplified pore-scale model for slow drainage including film-flow effects
Paula Reis, Marcel Moura, Gaute Linga +3
Film flow through networks of corners and capillary bridges can establish connections between seemingly isolated clusters during drainage in porous media. Coupled with drainage thr…
Competing gravitational and viscous efects in 3D two-phase flow investigated with a table-top optical scanner
Joachim Falck Brodin, Per Arne Rikvold, Marcel Moura +2
We present experiments and theory describing the transition from viscosity-stabilized flow to gravitationally unstable fingering for two-phase flow in a 3D synthetic porous medium.…