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Investigations on the influence of pore‐space geometry on concentration patterns and transportation properties of dissolved oxygen in a bioactive sandy sediment by a lattice Boltzmann automaton model
Author(s) -
Haußels R.,
Klenke Th.,
Kropp J.,
Ebenhöh W.
Publication year - 2001
Publication title -
hydrological processes
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.222
H-Index - 161
eISSN - 1099-1085
pISSN - 0885-6087
DOI - 10.1002/hyp.117
Subject(s) - mesoscopic physics , lattice boltzmann methods , geometry , advection , sediment , cellular automaton , lattice (music) , lattice gas automaton , characterisation of pore space in soil , oxygen , materials science , geology , mechanics , porosity , chemistry , thermodynamics , physics , mathematics , geomorphology , condensed matter physics , algorithm , composite material , stochastic cellular automaton , organic chemistry , acoustics
A lattice Boltzmann automaton (LBA) is used as a modelling approach to investigate the influence of pore‐space geometry on intrinsic processes and component distributions in recent tidal sediments. The simulations are performed on real pore‐space structures obtained from scanning electron photomicrographs, which document the mesoscopic geometry of bioactive sandy surface sediments. The discrete transport–reaction model for dissolved oxygen shows that in advective controlled systems oxygen concentration properties can be clearly related to the pore‐space geometry. Variability of measured high‐resolution concentration gradients can therefore can be attributed to the structural heterogeneity of pore‐space geometry. Copyright © 2001 John Wiley & Sons, Ltd.