Computational Simulation Of The Effect Of
Crystallization Inhibitors On Salt Transport And
Crystallization In Porous Materials
Author(s)
J. Kelnar, J. Maděra & R. Černý
Abstract
Computational simulation of salt transport and crystallization in limestone
depending on the presence of crystallization inhibitor in the dissolved salt is
presented. The diffusion-advection model is used for the basic description of
coupled water and salt transport, taking into account both water movement due
to the moisture gradient and diffusion and dispersion effects within the liquid
phase due to the concentration gradient. Salt crystallization in the porous body is
modelled using an equilibrium model, taking into account the effect of
crystallization inhibition. The effect of salt bonding on the pore walls is taken
into account as well. The results of numerical simulations using a well calibrated
computational model give evidence that in the analyzed case the use of
crystallization inhibitors leads to the slowing down of both water and salt
transport.
Keywords: salt, moisture, transport, crystallization, computer simulation.
1 Introduction
The mathematical analysis of experimentally determined salt concentration
profiles depends on the assumed mode of salt transport in the porous material. If
purely diffusion transport is assumed, common methods for solving the inverse
problems for parabolic equations can be used. The simplest method makes the
assumption that the diffusion coefficient is constant, the domain under solution is
semi-infinite, and the boundary condition on the remaining side of a
Keywords
salt, moisture, transport, crystallization, computer simulation.
Related Book
Other papers in this volume
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