title: Review of pore network modelling of porous media: Experimental characterisations, network constructions and applications to reactive transport.
abstract: Pore network models have been applied widely for simulating a variety of different physical and chemical processes, including phase exchange, non-Newtonian displacement, non-Darcy flow, reactive transport and thermodynamically consistent oil layers. The realism of such modelling, i.e. the credibility of their predictions, depends to a large extent on the quality of the correspondence between the pore space of a given medium and the pore network constructed as its representation. The main experimental techniques for pore space characterisation, including direct imaging, mercury intrusion porosimetry and gas adsorption, are firstly summarised. A review of the main pore network construction techniques is then presented. Particular focus is given on how such constructions are adapted to the data from experimentally characterised pore systems. Current applications of pore network models are considered, with special emphasis on the effects of adsorption, dissolution and precipitation, as well as biomass growth, on transport coefficients. Pore network models are found to be a valuable tool for understanding and predicting meso-scale phenomena, linking single pore processes, where other techniques are more accurate, and the homogenised continuum porous media, used by engineering community.
authors.affiliation: Modelling & Simulation Centre and Research Centre for Radwaste & Decommissioning, School of Mechanical Aerospace & Civil Engineering, The University of Manchester, Oxford Road, Manchester M13 9PL, UK. Electronic address: qingrong.xiong@manchester.ac.uk.
authors.forename: Qingrong
authors.initials: Q
authors.lastname: Xiong
authors.affiliation: Modelling & Simulation Centre and Research Centre for Radwaste & Decommissioning, School of Mechanical Aerospace & Civil Engineering, The University of Manchester, Oxford Road, Manchester M13 9PL, UK.
authors.forename: Todor G
authors.initials: TG
authors.lastname: Baychev
authors.affiliation: Modelling & Simulation Centre and Research Centre for Radwaste & Decommissioning, School of Mechanical Aerospace & Civil Engineering, The University of Manchester, Oxford Road, Manchester M13 9PL, UK.
authors.forename: Andrey P
authors.initials: AP
authors.lastname: Jivkov
mesh_terms: D000327:Adsorption; D000465:Algorithms; D018533:Biomass; D004784:Environmental Monitoring / Q000379:methods; D062070:Hydrology / Q000379:methods*; D009682:Magnetic Resonance Spectroscopy; D008628:Mercury; D008962:Models, Theoretical; D016062:Porosity; D055114:X-Ray Microtomography / Q000379:methods
chemical_list: D008628:Mercury
keywords: Pore network model; Porous media; Reactive transport