MODELING AND SIMULATION OF THE PROCESS OF PRECIPITATION AND DISSOLUTION OF THE MINERALS CALCITE AND DOLOMITE

MODELING AND SIMULATION OF THE PROCESS OF PRECIPITATION AND DISSOLUTION OF THE MINERALS CALCITE AND DOLOMITE

ELY, B.; BORTOLI, A. L. de

Artigo:

This work aims to model and simulate the fluid flow in a porous medium with precipitation and dissolution of minerals. The importance of this theme is its contribution to understanding the flow process in the soil, including minerals deposition and aquifers formation. Due to temperature changes, the natural convection of the fluid in the porous medium may induce to precipitation or dissolution of chemical species by changing the pH. There appear many physical phenomena, which can be analyzed by sophisticated transport models. In this work, the model is based on a set of nonlinear differential equations of Navier-Stokes type that considers variations in temperature, pressure, fluid composition and mineral composition. The solution procedure is based on the finite differences Runge-Kutta multistage scheme. The results compare favourably with data found in the literature.

This work aims to model and simulate the fluid flow in a porous medium with precipitation and dissolution of minerals. The importance of this theme is its contribution to understanding the flow process in the soil, including minerals deposition and aquifers formation. Due to temperature changes, the natural convection of the fluid in the porous medium may induce to precipitation or dissolution of chemical species by changing the pH. There appear many physical phenomena, which can be analyzed by sophisticated transport models. In this work, the model is based on a set of nonlinear differential equations of Navier-Stokes type that considers variations in temperature, pressure, fluid composition and mineral composition. The solution procedure is based on the finite differences Runge-Kutta multistage scheme. The results compare favourably with data found in the literature.

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DOI: 10.5151/chemeng-cobeq2014-1926-16838-181199

Referências bibliográficas

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Como citar:

ELY, B.; BORTOLI, A. L. de; "MODELING AND SIMULATION OF THE PROCESS OF PRECIPITATION AND DISSOLUTION OF THE MINERALS CALCITE AND DOLOMITE", p-12967-12974. In: Anais do XX Congresso Brasileiro de Engenharia Química - COBEQ 2014 [= Blucher Chemical Engineering Proceedings, v.1, n.2]. São Paulo: Blucher, 2015.
ISSN 23591757, DOI 10.5151/chemeng-cobeq2014-1926-16838-181199