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50ft oh casts, comparison incl.
and excl creep
Purpose
The purpose of this comparison is to show the
impact of creep.
The comparison is made between two
simulations:
· The 50ft oh ref. cast without creep.
· “50ft creep” with creep. A cast with creep is a cast in which
the rod is moved forward in the angular direction before the rod acceleration
is applied. Creep reduces the arc during acceleration and increases the angular
acceleration. Creep may cause tailing loops.
Input, casting stroke
The angular velocity, shown for the two cases
below, is the only input that differs between the two compared cases.
Output, animation
Click on the graph below to start animation.
Comment:
The cast with creep produces
a dip in the rod tip path and a a
tailing loop i.e., the line is crossing itself before
straightening. Also, the cast with creep shows reduced loop speed and is less
efficient. Creep is known to be the culprit of many poor casts by beginners.
Output, graphs
The graphs considered most relevant for the
comparison are presented below. For explanations to the graphs please see the 50ft oh ref. cast.
Output, energies and work