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Q:
What is the meaning of hydrodynamic pressure of fluid? Is it same as static pressure? How can hydrodynamic pressure be defined at a molecular level of fluids?
A:
It’s the same as the dynamic pressure of a fluid, but more likely to define the pressure of a liquid. Pressure is due to the random motion of molecules: as the molecules bounce off of surfaces, they exert a force which we call pressure. While the molecules of liquids are restrained, they exert a pressure, just like air pushes on us.
Posted on April 7, 2013 at 3:50 pm
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