PoreFlow: A complex pore-network model for simulation of reactive transport in variably saturated porous media

Raoof, Amir; Nick, Hamidreza M.; Hassanizadeh, S. Majid; Spiers, Christopher J.

doi:10.1016/j.cageo.2013.08.005

Cited by 141 publications

(96 citation statements)

References 58 publications

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“…In most of these studies, microbial motility is considered either as a passive (induced by water flow or sediment matrix transport) process (e.g., Ginn et al, 2002;Raoof et al, 2013;Rockhold et al, 2004;Thullner et al, 2005;Tufenkji, 2007;Stumpp et al, 2011) or include only random (undirected) motility (e.g., Long and Or, 2005;Wang and Ford, 2010), with the majority of simulation studies not considering any microbial motility at all. Only few simulation studies considered microbial chemotaxis in porous media with the main focus on exploring the response of microbial populations to the imposed macro-scale nutrient gradients (e.g., Barton and Ford, 1997;Duffy et al, 1997).…”

Section: Introductionmentioning

confidence: 99%

How the chemotactic characteristics of bacteria can determine their population patterns

Gharasoo

Centler

Fetzer

et al. 2014

Soil Biology and Biochemistry

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Section: Introductionmentioning

confidence: 99%

How the chemotactic characteristics of bacteria can determine their population patterns

Gharasoo

Centler

Fetzer

et al. 2014

Soil Biology and Biochemistry

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“…For details about the pore network model, see References [36,37]. The pore network model was developed earlier, and is very mature for single-phase flow and two-phase flow and has been expanded to a three-dimensional (3D) three-phase model by considering the complicated physical and chemical processes involved [38][39][40][41]. With the development of computer graphics, the pore network can be structured by real core images, bridging the gap of the pore network structure and the real core structure.…”

Section: Introductionmentioning

confidence: 99%

Advances in Pore-Scale Simulation of Oil Reservoirs

Wang

et al. 2018

Energies

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Abstract:At the high water cut stage, the residual oil in a reservoir becomes complex and dispersed. Moreover, it is challenging to achieve good predictions of the movement of oil and water in a reservoir according to the macroscopic models based on the statistic parameters of this scenario. However, pore-scale simulation technology based on directly tracking the interaction among different phases can make an accurate prediction of the fluid distribution in the pore space, which is highly important in the improvement of the recovery rate. In this work, pore-scale simulation methods, including the pore network model, lattice Boltzmann method, Navier-Stokes equation-based interface tracking methods, and smoothed particle hydrodynamics, and relevant technologies are summarized. The principles, advantages, and disadvantages, as well as the degree of difficulty in the implementation are analyzed and compared. Problems in the current simulation technologies, micro sub-models, and applications in physicochemical percolation are also discussed. Finally, potential developments and prospects in this field are summarized.

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“…Where the multiplier is defined as We substitute this expansion into the boundary conditions (15) and use the orthogonality condition associated Legendre polynomials. As a result, we find the expression for the unknown coefficients Here the coefficient of the series is…”

Section: Stationary Distribution Of Temperature and Synthesis Gas In mentioning

confidence: 99%

“…In this case, a homogeneous approximation can be used to describe the reactions in the volume of the granules. A wide range of models designed for homogeneous reactions: shrinking core model, models taking into account the dynamics of change the pore structure, percolation and fractal models [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16].…”

Section: Introductionmentioning

confidence: 99%

Mathematical model of Fischer-Tropsch catalyst pellet with pointed centers of synthesis

Деревич

Fokina

2017

J. Phys.: Conf. Ser.

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Abstract. The productivity of Fischer-Tropsch reactors is determined by the efficiency of heat and mass transfer processes inside the catalyst pellets. To reduce the diffusion resistance, the pellet base is made porous. The porous structure of the granules causes a discrete arrangement of cobalt metallic microparticles whose size can reach tens of microns. The distance between these active centres significantly exceeds their characteristic size and the homogeneous catalyst model is incorrect. A mathematical model of heat and mass transfer processes inside a porous spherical pellet with localised active centres is proposed. The heat of the exothermic synthesis reaction is removed from the surface of the granule to the synthesis gas stream washing the catalyst pellet by heat transfer. The components of the synthesis gas enter the granule surface as a result of mass transfer. On the basis of the self-consistent field method, the values of the temperature and concentration of the synthesis gas components at the active centres were determined. It is shown that there is a critical temperature of the synthesis gas washing the granule, exceeding critical temperature leads to a substantial overheating of the active centres. In this case, the surface of the catalyst pellet is superheated slightly. The principal difference between the homogeneous and heterogeneous models in catalytic reactions is discussed.

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PoreFlow: A complex pore-network model for simulation of reactive transport in variably saturated porous media

Cited by 141 publications

References 58 publications

How the chemotactic characteristics of bacteria can determine their population patterns

How the chemotactic characteristics of bacteria can determine their population patterns

Advances in Pore-Scale Simulation of Oil Reservoirs

Mathematical model of Fischer-Tropsch catalyst pellet with pointed centers of synthesis

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