3 Hydrodynamics
251
Fig. 3.74 Deepwater waves
Fig. 3.75 Shallow water waves
of water depth to wavelength. Whether the bottom of the riverbed affects
the wave motion depends on the relative water depth ratio. It is shown
that when H /λ > 1/2, the effect of the bottom on the waves is negligible, which is called deepwater. For example, using a more complete
wave speed a formula
a
2
=
g
k
tanh(k H)
251
Fig. 3.74 Deepwater waves
Fig. 3.75 Shallow water waves
of water depth to wavelength. Whether the bottom of the riverbed affects
the wave motion depends on the relative water depth ratio. It is shown
that when H /λ > 1/2, the effect of the bottom on the waves is negligible, which is called deepwater. For example, using a more complete
wave speed a formula
a
2
=
g
k
tanh(k H)