Week 4 water power Flashcards
1
Q
how can surface waves be considered
A
can be thought of as the superposition of sine waves for vertical displacement h with irregular phase, wavelength, width
2
Q
what happens for deep water waves
A
for deep water waves the radius of particle motion decreases exponentially with depth
3
Q
what is the total energy of a wave equation
A
E = 1/2ρga^2λ
4
Q
how do you maximise power of a wave
A
need a long wavelength and large amplitude
5
Q
what causes tides
A
difference in gravitational force due to Moon at different points on Earth’s surface
6
Q
what is the tidal force equation
A
F = +- 2mMGR/L^3
7
Q
define tidal range
A
change in height between successive high and low tide
8
Q
what is the tidal power equation
A
P = 1/2CpAρu^3
