An Explicit Stabilized Runge–Kutta–Legendre Super Time-Stepping Scheme for the Richards Equation

Table 2

Test of RKL scheme with EXPL, IMPL, and CN in .

	CPU time (sec)
5	46.2	2.25192E−02	2.24732E−02	2.24649E−02
10	24.78	1.37265E−02	2.24732E−02	1.34624E−02
20	14.37	7.33902E−03	6.61120E−03	6.48773E−03
25	12.93	5.80247E−03	4.63486E−03	4.43717E−03
30	11.07	4.20458E−03	1.93189E−03	1.63057E−03
35	9.81	3.27050E−03	5.05055E−04	1.19139E−04
40	9.51	2.53303E−03	1.19531E−03	1.78467E−03
45	8.97	1.61003E−03	4.21368E−03	4.69720E−03
50	8.52	3.80157E−05	6.90071E−03	9.08979E−03
55	7.92	5.36361E−04	7.11451E−03	7.43036E−03
60	7.32	2.17285E−03	1.13744E−02	1.53756E−02
65	7.44	3.23959E−03	1.15905E−02	1.69259E−02
80	6.33	9.77096E−03	2.24249E−02	5.21857E−02
100	7.35	7.96584E−03	2.15554E−02	4.52289E−02