Numerical Treatment of a Modified MacCormack Scheme in a Nondimensional Form of the Water Quality Models in a Nonuniform Flow Stream

Table 2

The pollutant concentration 𝐶(𝑥,𝑡) of traditional MacCormack scheme, Δ𝑥 = 0.025 and Δ𝑡 = 0.00125.

𝑡	𝑥=0	𝑥=0.1	𝑥=0.2	𝑥=0.3	𝑥=0.4	𝑥=0.5	𝑥=0.6	𝑥=0.7	𝑥=0.8	𝑥=0.9	𝑥=1.0
10	1.000000	0.174513	0.029152	0.004634	0.000697	0.000099	0.000013	0.000002	0.000000	0.000000	0.000000
20	1.000000	0.054532	0.003068	0.000180	0.000011	0.000001	0.000000	0.000000	0.000000	0.000000	0.000000
30	1.000000	0.125937	0.015943	0.002012	0.000251	0.000031	0.000004	0.000000	0.000000	0.000000	0.000000
40	1.000000	0.105911	0.010827	0.001074	0.000104	0.000010	0.000001	0.000000	0.000000	0.000000	0.000000