Figure 17. Energy gradient and Froude number parameter E as a function of
depth ratio for selected dimensionless depths along the profile. Panel b is an ex-
panded view of the shaded area in panel a.
Figure 18. Dimensionless depth and corresponding maximum E as functions of depth ratio.
The dimensionless depth corresponding to maximum E for a given depth ratio can be
obtained by differentiating eq 45 with respect to y and setting the result to zero as
~
2
3
y=
- 3/2
~
.
(46)
yr - 1 yr - 1
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