Re: [Phys-l] question about Bernoulli

[John Denker <jsd@av8n.com>]

On 11/23/2010 05:16 PM, John Mallinckrodt wrote:
> My point is primarily that I don't believe that the pressure
> reduction for "incompressible" fluids can be understood very well in
> terms of a kinetic theory model

Agreed!

My take on this is that there are no incompressible fluids,
period.

Sometimes you can expand things in a Taylor series and 
sometimes some results depend only on the zeroth-order
term ... but this is a statement about the convenience
of the approximation, not about the underlying physics
... and the very next application may require keeping
the higher-order terms.