Dynamic Pressure

Written by Jerry Ratzlaff on . Posted in Dynamics

Dynamic pressure, abbreviated as q or Q, also known as velocity pressure, is the amount of total pressure resulting from the media velocity.

 

Dynamic Pressure formulas

\(\large{ q = \frac {1} {2}\; \rho\; v^2  }\)   
\(\large{ q = \frac {\rho\; v^2} {2}  }\)   

Where:

 Units English Mertic
\(\large{ q }\) = dynamic pressure \(\large{\frac{lbf}{in^2}}\) \(\large{ Pa }\)
\(\large{ \rho }\)   (Greek symbol rho) = density of fluid \(\large{\frac{lbm}{ft^3}}\) \(\large{\frac{kg}{m^3}}\)
\(\large{ v }\) = velocity of fluid \(\large{\frac{ft}{sec}}\) \(\large{\frac{m}{s}}\)

 

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Tags: Pressure Equations