Boat Wakes

Answer 1

transverse wave in the middle, diverging waves at the outside

80% of total wave energy on these lakes are from boat wakes

Question 2

wake size and structure

Answer 2

wave height, period, etc dependent on:
speed of boat, size of boat

speed of vessel
length of vessel
displacement - plowing - planing
distance from sailing

Question 3

plowing and planing, boat length and speed

Answer 3

Froud number
Fr = V / sqrt(gL)

displacement speed
-pushes water and wave goes away
-small Fr (boat < wave)

transition speed - plowing
->boat is semi vertical
->biggest waves
- Fr = 1 (boat = wave) -> largest

planing speed
-large Fr (Boat>wave)