Pressure

January 26, 2001, 02:34

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?

January 27, 2001, 08:25

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)

January 26, 2001, 02:34	Pressure	#1
ahmer Guest Posts: n/a	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?

January 27, 2001, 08:25	Re: Pressure	#2
Moomoo Guest Posts: n/a	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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