Re: [Phys-L] Bernoulli's equation

["R. W. Tarara" <rtarara@saintmarys.edu>]

Not so tedious--

Consider the total external energy by taking the work done on the fluid 
(Fs), the KE (1/2mv^2), and the gravitational PE (mgH) and divide the sum of 
these  by volume.  The assumption is some small volume near the boundaries 
of the fluid.  Fs/V = Fs/As = P  while the masses become mass volume 
densities.

Rick

Richard W. Tarara
Professor of Physics
Saint Mary's College
Notre Dame, Indiana

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From: "Anthony Lapinski" <Anthony_Lapinski@pds.org>
Sent: Friday, January 25, 2013 11:36 AM
To: <phys-l@phys-l.org>
Subject: [Phys-L] Bernoulli's equation

> Teaching fluids now. Is there an "easy/conceptual" way to teach/derive
> Bernoulli's equation?
>
> P + 0.5pv2 = pgh = constant
>
> Using conservation of energy and other formulas, this is the most
> tedious/complicated derivation. I'm just looking for a different approach.
>
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