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Many processes can correspond to reactive impregnation in porous solids.These processes are usually numerically computed by classical methods likefinite element method, finite volume method, etc. The disadvantage of thesemethods remains in the computational time. The convergence and accuracy requirea small step-time and a small mesh size, which is expensive in computationaltime and can induce a spurious oscillation. In order to avoid this problem, wepropose a Self-organized Gradient Percolation algorithm. This method permits toreduce the CPU time drastically.

Simulation of the impregnation in the porous media by the Self- organized Gradient Percolation method