Zobrazeno 1 - 10
of 132
pro vyhledávání: '"Eirik Grude Flekkøy"'
Publikováno v:
Entropy, Vol 26, Iss 3, p 274 (2024)
Hyper-ballistic diffusion is shown to arise from a simple model of microswimmers moving through a porous media while competing for resources. By using a mean-field model where swimmers interact through the local concentration, we show that a non-line
Externí odkaz:
https://doaj.org/article/4bcecf849f5c44938dacec4cc2cc5056
Publikováno v:
Frontiers in Physics, Vol 9 (2021)
We present a theoretical and experimental investigation of drainage in porous media. The study is limited to stabilized fluid fronts at moderate injection rates, but it takes into account capillary, viscous, and gravitational forces. In the theoretic
Externí odkaz:
https://doaj.org/article/3744cec2f2974255a74bd2c4412742d2
Publikováno v:
Physical Review Research, Vol 4, Iss 4, p 043017 (2022)
We study the collective dynamical behavior of active particles with topological interactions and directional reversals. Surprising phenomena are shown to emerge as the interaction relaxation time is varied relative to the reversal rate, such as the s
Externí odkaz:
https://doaj.org/article/e13aedc3112d4d13bde0de08a0095397
Publikováno v:
Frontiers in Physics, Vol 7 (2020)
The intermittent dynamics of slow drainage flows in a porous medium is studied experimentally. This kind of two-phase flow is characterized by a rich burst activity and our setup allows us to characterize those bursts directly via images of the flow
Externí odkaz:
https://doaj.org/article/b6ebff66c4b943dfb02572548c2f2912
Publikováno v:
Physical Review Research, Vol 2, Iss 4, p 043314 (2020)
We study the escape problem for interacting, self-propelled particles confined to a disk, where particles can exit through one open slot on the circumference. Within a minimal two-dimensional Vicsek model, we numerically study the statistics of escap
Externí odkaz:
https://doaj.org/article/ba47608248f64a7580f5d6f4141da2b0
Autor:
Kristian Stølevik Olsen, Eirik Grude Flekkøy, Luiza Angheluta, James Matthew Campbell, Knut Jørgen Måløy, Bjørnar Sandnes
Publikováno v:
New Journal of Physics, Vol 21, Iss 6, p 063020 (2019)
Frictional finger trees are patterns emerging from non-equilibrium processes in particle-fluid systems. Their formation share several properties with growth algorithms for minimum spanning trees (MSTs) in random energy landscapes. We propose that the
Externí odkaz:
https://doaj.org/article/df7ea13c16be4a1ab9cb1fae4697c11e
Publikováno v:
Frontiers in Physics, Vol 4 (2016)
We experimentally investigate the rotation of plate shaped aggregates of clay mineral particles immersed in silicone oil. The rotation is induced by an external electric field. The rotation time is measured as a function of the following parameters:
Externí odkaz:
https://doaj.org/article/c7813bfa4413449cb717cc92663274f3
Publikováno v:
Frontiers in Physics, Vol 3 (2015)
We study the formation of viscous fingering and fracturing patterns that occur when air at constant overpressure invades a circular Hele-Shaw cell containing a liquid-saturated deformable porous medium -- i.e. during the flow of two non-miscible flui
Externí odkaz:
https://doaj.org/article/c3379f1556f04ef5a78face753b70312
Autor:
Semih eTurkaya, Renaud eToussaint, Fredrik Kvalheim Eriksen, Megan eZecevic, Guillaume eDaniel, Eirik Grude Flekkøy, Knut Jørgen eMåløy
Publikováno v:
Frontiers in Physics, Vol 3 (2015)
The characterization and understanding of rock deformation processes due to fluid flow is a challenging problem with numerous applications. The signature of this problem can be found in Earth Science and Physics, notably with applications in natural
Externí odkaz:
https://doaj.org/article/9c9e588db629434cae52434a0f04b51d
Autor:
Eirik Grude Flekkøy, Renaud Toussaint
Publikováno v:
Monthly Notices of the Royal Astronomical Society: Letters. 523:L9-L14
We obtain the exact statistical distribution of expected detection rates that may be obtained from the detection of ‘Oumuamua, which currently belongs to a class of objects that is only observed once in our Solar system. The derivation of the distr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cf5679f3c6176182bf8cf71c565046d6
https://doi.org/10.1093/mnrasl/slad049
https://doi.org/10.1093/mnrasl/slad049