
157Chapter eight: 2D shallow water ow in channels with bed variations
–4000 –3000 –2000 –1000 0 1000 2000 3000 4000
–3
–2
–1
0
1
2
t = 3T/4
Bottom
Exact
Simulated
Figure 8.13 Computed and exact water surface proles in the parabolic bowl at
t = 3T/4.
–4000 –3000 –2000 –1000 0 1000 2000 3000
–3
–2
–1
0
1
2
t = T
Bottom
Exact
Simulated
Figure 8.14 Computed and exact water surface proles in the parabolic bowl at
t = T.