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Mathematical Problems in Engineering
Volume 2015, Article ID 982436, 5 pages
Research Article

Numerical Analysis on Flow and Solute Transmission during Heap Leaching Processes

1College of Information Technology, Shanghai Ocean University, Shanghai 201306, China
2School of Civil and Environment Engineering, University of Science and Technology Beijing, Beijing 100083, China

Received 26 August 2014; Accepted 30 October 2014

Academic Editor: Kim M. Liew

Copyright © 2015 J. Z. Liu et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Based on fluid flow and rock skeleton elastic deformation during heap leaching process, a deformation-flow coupling model is developed. Regarding a leaching column with 1 m height, solution concentration 1 unit, and the leaching time being 10 days, numerical simulations and indoors experiment are conducted, respectively. Numerical results indicate that volumetric strain and concentration of solvent decrease with bed’s depth increasing; while the concentration of dissolved mineral increases firstly and decreases from a certain position, the peak values of concentration curves move leftward with time. The comparison between experimental results and numerical solutions is given, which shows these two are in agreement on the whole trend.