here, h is flow depth (potential energy); αv2=ð2gÞ is velocity head
(kinetic energy), where α is Coriolis coefficient and v is mean flow
velocity. These two parts of energy are closely inter-related. An
increment in flow velocity v leads to a decrement in both flow
depth h and the cross-sectional area.
Expressing river flow discharge Q¼Av, where A is the area of
the river flow cross section, and assuming that α¼1 in
H ¼ αv2=ð2gÞ, Eq. (1) takes the following form of kinetic energy
power:
P ¼ 0:5ρQv2