Re: [Paddlewise] Who Took Shaun White Sea Kayaking?

From: Dave Kruger <kdruger_at_pacifier.com>
Date: Fri, 19 Feb 2010 00:10:24 -0800
Craig Jungers wrote:

> Speaking of wing paddles: Matt Broze has a wonderful way of grounding things
> in logic. One of the things Matt triggered in me is a question of whether a
> "wing" paddle actually works like a wing; with low and high pressures, etc.
> Since water is, for all practical purposes, incompressible, the idea of low
> and high pressure should only be considered in terms of depth. 

Hunh?  Hydrofoils make use of high and low pressure to produce lift.  The 
Bernoulli effect is operable in water and other incompressible fluids.  Why 
would any paddle not produce high and low pressures in water?  Just because 
there is only an extremely tiny change in volume when water is compressed 
does not mean the pressure change is small.

See:  http://en.wikipedia.org/wiki/Hydrofoil

-- 
Dave Kruger
Astoria, OR
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Received on Fri Feb 19 2010 - 00:10:29 PST

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