Computational Efficiency of Decoupling Approach in Solving Reactive Transport Model: A Case Study of Pyrite Oxidative Dissolution

Table 4

Comparison of solution time in 1D model using direct solver, UMFPACK.

Maximum element size	Number of elements	Original solution time,	Decoupled solution time,	%
0.01	500	1.079	0.297	27.53
0.02	250	0.625	0.203	32.48
0.04	125	0.406	0.141	34.73
0.05	100	0.359	0.125	34.82
0.08	63	0.313	0.109	34.82
0.10	50	0.282	0.109	38.65
0.20	25	0.234	0.094	35.47