Based upon the lattice Boltzmann method, the current paper developed a visual simulation method for the evolution of porous structure during the acid leaching process. The reliability of the model in simulating fluid flow, solute diffusion, calcite dissolution, and gypsum precipitation was validated using four benchmark tests. The model was then used to investigate the effects of calcite distribution, sulfuric acid concentration, and porous structure on reactive transport processes. Results demonstrated that simulated values closely aligned with theoretical solutions or experimental data, conf...
