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Theory and Modern Applications

Table 3 The velocity of water flow \(\pmb{u(x,t)}\) , \(\pmb{\Delta x = 0.05}\) , \(\pmb{\Delta t = 0.00125}\)

From: Unconditional stable numerical techniques for a water-quality model in a non-uniform flow stream

t , x

0

0.1

0.2

0.3

0.4

0.5

0.6

0.7

0.8

0.9

1.0

10

0.5421

0.5505

0.5421

0.5202

0.4859

0.4362

0.3701

0.2901

0.1998

0.1029

0.0000

20

1.3284

1.2315

1.1228

1.0041

0.8766

0.7416

0.6001

0.4538

0.3042

0.1526

0.0000

30

0.3291

0.2628

0.2058

0.1578

0.1182

0.0861

0.0606

0.0405

0.0246

0.0116

0.0000

40

−1.1343

−1.0752

−0.9995

−0.9086

−0.8044

−0.6884

−0.5627

−0.4290

−0.2894

−0.1457

0.0000