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pressure-energy density



Hi Folks,

The Bernouli equation is that

P + (1/2)mv^2 + mgh

where m is the mass per unit volume, is constant along a streamline of a
viscosity-less incompressible fluid undergoing laminar flow. Does
thinking of the pressure P as some kind of pressure-energy density to be
encouraged, or does is lead to later difficulties? Since the fluid is
incompressible, it is clear that P does not represent work per unit volume
done in compressing the fluid.

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Eugene (Gene) P. Mosca Phone 410-293-6659 (Fax 3729)
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