Hydrodynamic Pressure
Hydrodynamic Pressure : The difference between the pressure and the hydrostatic pressure. This concept is useful chiefly in problems of the steady flow of an imcompressible fluid in which the hydrostatic pressure is constant for a given elevation (as when the fluid is bounded above by a rigid plate), so that the external force field (gravity) may be eliminated from the problem. If p* is the hydrodynamic pressure, p the density, and V the speed, Bernoulli's equation gives: p* + i- pV2 = onstant along a streamline. See also: static pressure. N.B. Refer to source to verify equation(s)
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