Re: Archie a non-flyer? (was:Re: origin of bats/reply 2 to TMK)

[Mike Habib <habib@jhmi.edu>]

> > but Bernoulli works if you want to put the effort into it.
>
> Not to create the most of the lift (perhaps in some special  
> circumstances).

I think you have misunderstood the situation here a bit.  The  
aerodynamic forces on a wing are produces by the fluid flows - these  
flows can be modeled in a few different ways, and the Bernoulli model  
is one of them.  However, using a Bernoulli model turns out to be  
quite clumsy and difficult for most real wings with any level of  
complexity, and so a vortex model is generally preferred.  It's a  
difference in models, only - they are not distinct effects.

Cheers,

--Mike


Michael Habib, M.S.
PhD. Candidate
Center for Functional Anatomy and Evolution
Johns Hopkins School of Medicine
1830 E. Monument Street
Baltimore, MD 21205
(443) 280-0181
habib@jhmi.edu