Author(s): R.J. Held & M.A. Celia
A pore-scale model is developed to simulate mass transfer between two fluid
phases in a porous medium.
The model uses a network description of the
pore space, and couples to a capillary displacement model, which explicitly
tracks each fluid-fluid interface in the porous medium.
Given explicit lo-
cations of all fluid-fluid interfaces, the mass-transfer model computes mass
fluxes across each interface, then solves transport equations in the pore
network to determine aqueous-phase concentrations.
A stagnant-layer dif-
fusion model is used for mass transfer, so calculated concentrations control
the subsequent rates of mass transfer.
The model is used to predict a disso-
lution front develope...
Size: 640 kb
Paper DOI: 10.2495/CMWR980551
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