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Old   January 26, 2001, 02:34
Default Pressure
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I am undergrad student. I have one basic question, I consult different books but i need some more practical definition. How do we define static pressure, dynamic pressure and their dependency?
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Old   January 27, 2001, 08:25
Default Re: Pressure
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Take the Navier-Stokes Equations: ----------------------------------------------

Dynamic Pressure: Look at the NS eqn. This is the dynamic pressure.

----------------------------------------------- Static Pressure: For a system with zero velocity the NS eqn's reduce to dP/dx = rho g

(well it may be too much of a simplification. It would be better to say that all terms except the two stated above are negligable in the NS eqns)

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