Numerical Simulation of the Effect of the Dissolution of
Nov 19 2010 · The three main factors determining the dissolution rate are temperature particle size and operating voltage. The amount of the dissolved manganese ions has been observed to markedly increase with increasing temperature. 5 10 Particle size also plays an important role in determining the dissolution process. As the surface area increases for small particles dissolution becomes more
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Numerical simulation of a rising CO2 droplet in the
Mar 01 2014 · A multi-phase flow model which applies lattice Boltzmann method (LBM) is developed for numerical simulation of the initial accelerating stage of a rising CO 2 droplet in the deep ocean. In the present LBM model a multiple-relaxation time (MRT) collision operator is adopted to increase the numerical stability and a color model is used to treat the two-phase fluid.
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A microscopic simulation of particle flux in ocean waters
Oct 15 2018 · Microscopic simulation. Up to date the available models that describe particle sinking fluxes and metal scavenging are based on box models where each box is a compartment for the metal under consideration (e.g. Buesseler et al. 1998 Savoye et al. 2006). This way in the simplest models the dissolved and the particulate phases are
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A model of carbon dioxide dissolution and mineral
Dec 11 2009 · 1. Introduction. The quantity of carbon dioxide in the atmosphere has increased by about a third since the start of the Industrial Revolution in the late eighteenth century from around 280 parts per million by volume (ppmv) in 1850 to around 380 ppmv to date and is currently rising by about 1.7 ppmv per year ().When carbon dioxide reacts with water carbonic acid is formed from which
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Simulation of calcite dissolution and porosity changes in
Simulation of calcite dissolution and porosity changes in saltwater mixing zones in coastal aquifers Chapter 3 Numerical simulation of sedimentary basin-scale hydrochemical Permeability evolution induced by the precipitation of an advected solute Effect of the microscopic and the macroscopic scales competition on the clogging mechanism
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Numerical simulation of sealing effect of gas hydrate for
Although carbon dioxide capture and storage in subsea geological structure is regarded as one of the promising mitigation technologies against the global warming there is a risk of CO2 leakage and it is required to develop numerical models to predict how the CO2 migrate in the marine sediments. It is said that there are CO2-trap mechanisms in the geological formations such as capillary trap
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(PDF) Microscopic modelling of simultaneous two-phase
The initial carbon fraction in the solid solution is then given by the solubility limit of carbon in ferrite at 700 8C as considered previously. Fig. 6 Fig. 2. Evolution of metastable (m ) and stable (s ) precipitate radii at 200 8C. Precipitates of both phases start to grow simultaneously following a similar law.
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Numerical simulation of hydrodynamic and gas mixing
Aug 11 2016 · Numerical simulation of hydrodynamic and gas mixing processes in underground hydrogen storages adding hydrogen into the consisting gas supply system and production of synthesized methane by using hydrogen and carbon dioxide (Müller-Syring et al. 2011). ranging from microscopic to reservoir scale (Tek 1989).
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A model of carbon dioxide dissolution and mineral
Dec 11 2009 · 1. Introduction. The quantity of carbon dioxide in the atmosphere has increased by about a third since the start of the Industrial Revolution in the late eighteenth century from around 280 parts per million by volume (ppmv) in 1850 to around 380 ppmv to date and is currently rising by about 1.7 ppmv per year ().When carbon dioxide reacts with water carbonic acid is formed from which
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Experimental and numerical simulation of the injection of
Experimental and numerical simulation of the injection of a CO2 permeable network due to specific dissolution pattern called wormholes and ii) the preservation of mechanical Fig. 1 Illustration of the oolitic facies Microscopic view of the rock surface (a). Cathodoluminescence image of
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Numerical simulation and experimental investigation of
The numerical and experimental approaches modeling transport phenomena at the vicinity of the vapor-liquid interface the point efficiency for trays/packings regarding the mixing behavior of fluids and the computational mass transfer approach for the simulation of distillation columns are thoroughly analyzed.
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Pore-scale modeling of multiphase reactive transport with
Different numerical methods have been used to investigate pore-scale multiphase reactive transport processes including the direct numerical simulation method 15 pore-network model 16 17 lattice Boltzmann method (LBM) 1 3 8 9 18 and smoothed particle hydrodynamics 19 20 . Each of these methods has its own advantages and disadvantages
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Numerical simulation of sealing effect of gas hydrate for
Although carbon dioxide capture and storage in subsea geological structure is regarded as one of the promising mitigation technologies against the global warming there is a risk of CO2 leakage and it is required to develop numerical models to predict how the CO2 migrate in the marine sediments. It is said that there are CO2-trap mechanisms in the geological formations such as capillary trap
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Lattice Boltzmann simulation of coupled flow and evolution
Abstract. Reactive flows coupled to the evolution of porous formations are a topic of great importance for a wide range of scientific problems such as acid stimulation of petroleum reservoirs environmental contaminant transport mineral mining geologic sequestration of carbon dioxide chemical weathering and dissolution/formation of clathrate hydrates.
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Pore-scale modeling of multiphase reactive transport with
Different numerical methods have been used to investigate pore-scale multiphase reactive transport processes including the direct numerical simulation method 15 pore-network model 16 17 lattice Boltzmann method (LBM) 1 3 8 9 18 and smoothed particle hydrodynamics 19 20 . Each of these methods has its own advantages and disadvantages
Get PriceNumerical simulation of a rising CO2 droplet in the
Mar 01 2014 · A multi-phase flow model which applies lattice Boltzmann method (LBM) is developed for numerical simulation of the initial accelerating stage of a rising CO 2 droplet in the deep ocean. In the present LBM model a multiple-relaxation time (MRT) collision operator is adopted to increase the numerical stability and a color model is used to treat the two-phase fluid.
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Simulation of dissolution and precipitation in porous media
8 Bekri et al. 1995 applied similar numerical schemes in a study that focused on the dissolution of porous media. When simulating dissolution in the Menger sponge they found that dissolution is expected to occur as follows For small Peclet-Damkohler (PeDa) and small Peclet (Pe) numbers dissolution occurs over all the solid walls. For
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(PDF) NUMERICAL SIMULATION OF THE DRILLING OF CARBON
Considering the numerical simulation has great advantages for the study of the damage induced by CFRP drilling a three-dimensional finite element model was developed to simulate the drilling of
Get PriceNumerical Simulation of Injectivity Effects of Mineral
Numerical simulation is used to evaluate mass flow and heat extraction rates from enhanced geothermal injection-production systems that are operated
Get PriceExperimental and numerical simulation of the injection of
Experimental and numerical simulation of the injection of a CO2 permeable network due to specific dissolution pattern called wormholes and ii) the preservation of mechanical Fig. 1 Illustration of the oolitic facies Microscopic view of the rock surface (a). Cathodoluminescence image of
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Simulation of dissolution and precipitation in porous
Oct 29 2003 · 1 We apply the lattice‐Boltzmann method to simulate fluid flow and dissolution and precipitation in the reactive solid phase in a porous medium. Both convection and diffusion as well as temporal geometrical changes in the pore space are taken into account. The numerical results show that at high Peclet and Peclet‐Damkohler numbers a wormhole is formed and permeability increases
Get PriceNumerical Simulation of Injectivity Effects of Mineral
Numerical simulation is used to evaluate mass flow and heat extraction rates from enhanced geothermal injection-production systems that are operated
Get Price(PDF) Numerical Simulation of Reactive Transport on Micro
A numerical model is presented to predict alteration of porous medium structure due to the dissolution mechanisms.
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(PDF) Microscopic simulations of fracture dissolution
1 Microscopic simulations of fracture dissolution are reported taking account of the explicit topography of the pore space the transport of reactants and products and the chemical kinetics at
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GCEP Progress Report Combined Final
For microscopic modeling and simulation a coupled multiphase Lattice Boltzmann (LB) model was developed to simulate the dissolution of immiscible liquid droplets in another liquid during the rising process resulting from buoyancy.
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(PDF) Numerical Simulation of Reactive Transport on Micro
A numerical model is presented to predict alteration of porous medium structure due to the dissolution mechanisms.
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Simulation of dissolution and precipitation in porous media
8 Bekri et al. 1995 applied similar numerical schemes in a study that focused on the dissolution of porous media. When simulating dissolution in the Menger sponge they found that dissolution is expected to occur as follows For small Peclet-Damkohler (PeDa) and small Peclet (Pe) numbers dissolution occurs over all the solid walls. For
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Explaining the eventual transient saturation of climate
However carbonate dissolution is important only for time scales larger than ≈ 5 000 yr which is well above the length of every individual simulation performed in the present paper (1 500 yr). As a result the version FocL and the conceptual climate-carbon cycle model are applicable for the problem considered here as well.
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Simulation of dissolution and precipitation in porous
Oct 29 2003 · 1 We apply the lattice‐Boltzmann method to simulate fluid flow and dissolution and precipitation in the reactive solid phase in a porous medium. Both convection and diffusion as well as temporal geometrical changes in the pore space are taken into account. The numerical results show that at high Peclet and Peclet‐Damkohler numbers a wormhole is formed and permeability increases
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