How To Swim in Corn Syrup (Part 2)
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Uploaded by Swimmers1 on Aug 12, 2007
This the same rubber band powered swimmer used in the previous video but in corn syrup, which uses a common flapping mechanism for swimming in water. This does not work to produce thrust at low Reynolds number. Since this is a kinematic reversible flow as it flaps one way then the other it undoes it's work, since it cannot shed vortices. This is why you don't see microscopic organisms(very small things are at a low Reynolds number) with flapping mechanisms.
For video on kinematic reversible flows see(this film made by another user): http://www.youtube.com/watch?v=p08_KlTKP50
Films by Diego Saenz and Patrick Underhill at the University of Wisconsin-Madison.
Funded by the NSF.
http://grahamgroup.che.wisc.edu/
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They found little speed difference, but again they were at a lower viscosity and at a higher Reynolds number.
Swimmers1 1 year ago
If you are referring to Mythbusters, notable differences are that they are using a different method of swimming and the viscosity of the fluid. They are taking advantage of the difference in resistance of air and the fluid. While this method of swimming is purely based on an oscillating motion. In a nut shell you cannot swim by "underwater" flapping in corn syrup, but it is possible to swim by freestyle(front crawl) at the fluid surface.
Swimmers1 1 year ago
@capridrifter Yes, it's the same.
Swimmers1 1 year ago
is that the same corn syrup that we eat and drink?
capridrifter 3 years ago
This is really interesting because I read that there was an experiment where people swam laps in corn syrup and they could swim just a fast as when they swam in water. I couldnt believe it and I still don't.
Meragness 4 years ago