A sequential partly-iterative approach for solving coupled solute transport and chemical reactions in porous media

摘要

The sequential iteration approach (SIA) is one of the two main numerical schemes used for solving coupled solute transport and chemical reactions. A sequential partly-iterative approach (SPIA) is proposed here which requires iteration between transport and chemical equations only in areas with a large mass transfer between solid and liquid phases. It improves the numerical efficiency of SIA and overcomes the numerical errors of the sequential non-iterative approach (SNIA) proposed by Walter et al.