50ft oh casts, comparison double haul timing

The purpose of these simulations is to illustrate the impact of timing of double haul on a periodic cast.

Three simulations are compared with the only variation being the timing of the peak haul velocity:

· Peak haul velocity simultaneous with max angular velocity, denoted “peak haul 0ms”.

· Peak haul velocity 50 ms after max angular velocity, denoted “peak haul +50ms”,
same as in 50ft oh casts, comparison incl. and excl double haul.

· Peak haul velocity 100 ms after max angular velocity, denoted “peak haul +100ms”.

Note: The double haul increases the line length up to 0.50 m and the peak haul velocity is 3.8 m/s.

Input (shown for one stroke):

Output, animation (click on image to start animation)

Output, additional results

Graphs below shown for one stroke

Notes on energies and work:

· The kinetic energy for the line includes leader and fly.

· An offset giving the minimum line kinetic energy 0 has been applied.