# velocity pressure

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## velocity pressure

[və′läs·əd·ē ‚presh·ər]
(mechanics)
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

## velocity pressure

The difference between dynamic (or total) pressure and static pressure. Also called a velocity head.
References in periodicals archive ?
The wind pressure coefficient of the wind-capture device is defined as the ratio of the measured static pressure in the test section to the velocity pressure of the outlet
Velocity pressure exposure coefficient, kz: It varies with height and can be calculated by the following equation (ASCE 7-05, Eq.
In the limit as [Q.sub.b]/[Q.sub.c] [right arrow] 0, measured branch loss coefficient data became indeterminate, i.e., [C.sub.b] [right arrow] - [infinity], as a consequence of the velocity pressure [p.sub.v9] approaching zero in that instance.
Figure 8 illustrates the measured total pressure loss for System Section #1A as a function of the velocity pressure upstream of the test section (based on standard conditions of air density); the resulting system loss coefficient is C = 6.048.
The equation for determining air velocity from measured velocity pressure is:
The loss coefficient is defined as the ratio of the total pressure loss of a nonjunction fitting to that of velocity pressure, and is given by
The fan velocity pressure, [P.sub.vf], is the dynamic pressure based on the average velocity at the fan discharge.
The velocity pressure switchover position of the machine was set at 5 mm for all process conditions.
* Velocity pressure is the kinetic energy of the fluid flow.
Finally, velocity pressure was measured in the discharge duct and primary air duct.
(a)The semi-implicit method for pressure-linked equations algorithm is used to solve the problem of velocity pressure couple.

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