Vortices and Propulsion

Essay specific features

 

Issue:

Miscellaneous

 

Written by:

Wayne D

 

Date added:

November 6, 2012

 

Level:

University

 

Grade:

A

 

No of pages / words:

3 / 581

 

Was viewed:

4628 times

 

Rating of current essay:

 
Essay content:

The results of the experiments showed that: a) vortices are generated during different phases of the stroke and during the downward kick in undulatory swimming, flutter kick and breaststroke kick; b) when the hand suddenly changes the direction of its movement the starting vortex is detached from the hand and; c) the size and movement characteristics of the vortex seem related to propulsion obtained by the hand and foot movements...
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Greater efficiency in water is achieved by moving a large amount of water a short distance than by moving small amounts of water a great distance. These statement were developed after observing how good swimmers pull in the water with complex 3D trajectories that show continuous changes of the direction of the hand's pulling path...
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