A
Antti Koponen
Researcher at VTT Technical Research Centre of Finland
Publications - 87
Citations - 2833
Antti Koponen is an academic researcher from VTT Technical Research Centre of Finland. The author has contributed to research in topics: Rheology & Fiber. The author has an hindex of 22, co-authored 84 publications receiving 2553 citations. Previous affiliations of Antti Koponen include University of Jyväskylä.
Papers
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Journal ArticleDOI
Permeability and effective porosity of porous media
TL;DR: In this article, a lattice-gas cellular automaton method is used to simulate the dependence on porosity of a flow of Newtonian uncompressible fluid in this two-dimensional porous substance.
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Tortuous flow in porous media
TL;DR: In this article, a lattice-gas cellular automaton method is applied to solve the flow of a Newtonian uncompressible fluid in a two-dimensional porous substance constructed by randomly placed rectangles of equal size and with unrestricted overlap.
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Permeability of Three-Dimensional Random Fiber Webs
Antti Koponen,Drona Kandhai,E. K. O. Hellén,Mikko J. Alava,Alfons G. Hoekstra,Markku Kataja,Kaarlo Niskanen,Peter M. A. Sloot,J. Timonen +8 more
TL;DR: In this paper, the results of essentially ab initio simulations of creeping flow through large threedimensional random fiber webs that closely resemble fibrous sheets such as paper and nonwoven fabrics are reported.
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Lattice-Boltzmann and finite-difference simulations for the permeability for three-dimensional porous media.
TL;DR: The physical diagenesis model appears to reproduce the permeability of the real sandstone sample quite accurately, while the permeabilities of the stochastic reconstructions deviate from the latter by at least an order of magnitude, confirming earlier qualitative predictions based on local porosity theory.
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Lattice-Boltzmann hydrodynamics on parallel systems
Drona Kandhai,Antti Koponen,Alfons G. Hoekstra,Markku Kataja,Jussi Timonen,Peter M. A. Sloot +5 more
TL;DR: It is shown that high parallel efficiencies can be obtained for both homogeneously and heterogeneously distributed workloads, thus supporting efficient simulations of a variety of realistic systems.