TY - JOUR
T1 - Influence of pore space heterogeneity on mineral dissolution and permeability evolution investigated using lattice Boltzmann method
AU - Zhang, Yutian
AU - Jiang, Fei
AU - Tsuji, Takeshi
N1 - Funding Information:
This work was supported by JSPS KAKENHI Grant Numbers JP20K20948 . The authors would like to acknowledge the support of the I2CNER, which is sponsored by the World Premier International Research Center Initiative (WPI), Ministry of Education, Culture, Sports, Science, and Technology (MEXT), Japan. This work was also partially supported by the JSPS KAKENHI Grant Number JP19K15100 . We thank three anonymous reviewers for their constructive comments that helped the quality of this paper.
Publisher Copyright:
© 2021 Elsevier Ltd
PY - 2022/1/16
Y1 - 2022/1/16
N2 - The influence of pore space heterogeneity on mineral dissolution and permeability evolution in porous media was investigated using a numerical approach. Artificial porous media were generated by the linear Boolean model, and pore heterogeneity was evaluated using the Euler–Poincaré characteristic (i.e., Euler number). We applied the lattice Boltzmann method with dual particle distribution functions to simulate mineral dissolution under the combined effect of fluid flow and a diffusion process. Simulations were conducted to investigate dissolution patterns for a wide range of Péclet (Pe) and Damköhler (Da) numbers and various pore geometries. Six dissolution regimes were observed, and two types of transition phenomena between these dissolution regimes could be characterized. At high Pe and Da, the dissolution patterns strongly depended on the pore heterogeneity. In addition, four types of porosity–permeability relationship were observed. These relationships were influenced by the pore heterogeneity at high Da numbers.
AB - The influence of pore space heterogeneity on mineral dissolution and permeability evolution in porous media was investigated using a numerical approach. Artificial porous media were generated by the linear Boolean model, and pore heterogeneity was evaluated using the Euler–Poincaré characteristic (i.e., Euler number). We applied the lattice Boltzmann method with dual particle distribution functions to simulate mineral dissolution under the combined effect of fluid flow and a diffusion process. Simulations were conducted to investigate dissolution patterns for a wide range of Péclet (Pe) and Damköhler (Da) numbers and various pore geometries. Six dissolution regimes were observed, and two types of transition phenomena between these dissolution regimes could be characterized. At high Pe and Da, the dissolution patterns strongly depended on the pore heterogeneity. In addition, four types of porosity–permeability relationship were observed. These relationships were influenced by the pore heterogeneity at high Da numbers.
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U2 - 10.1016/j.ces.2021.117048
DO - 10.1016/j.ces.2021.117048
M3 - Article
AN - SCOPUS:85114161474
VL - 247
JO - Chemical Engineering Science
JF - Chemical Engineering Science
SN - 0009-2509
M1 - 117048
ER -