A Numerical Scheme for the Pore-Scale Simulation of Crystal Dissolution and Precipitation in Porous Media
نویسندگان
چکیده
منابع مشابه
A Numerical Scheme for the Pore-Scale Simulation of Crystal Dissolution and Precipitation in Porous Media
In this paper we analyze a numerical scheme for a dissolution and precipitation in porous media. We focus here on the chemistry, which is modeled by a parabolic problem that is coupled through the boundary conditions to an ordinary differential inclusion defined on the boundary. We use a regularization approach for constructing a semi-implicit scheme that is stable and convergent. For dealing w...
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In this paper we discuss a pore scale model for crystal dissolution and precipitation in porous media. We consider first general domains, for which existence of weak solutions is proven. For the particular case of strips we show that free boundaries occur in the form of dissolution/precipitation fronts. As the ratio between the thickness and the length of the strip vanishes we obtain the upscal...
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[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 greatly becau...
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ژورنال
عنوان ژورنال: SIAM Journal on Numerical Analysis
سال: 2008
ISSN: 0036-1429,1095-7170
DOI: 10.1137/060673485