Dynamic pressure

From Glossary of Meteorology
Revision as of 15:51, 25 April 2012 by imported>Perlwikibot
(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)



dynamic pressure

(Also called velocity pressure, stagnation pressure.) In engineering fluid mechanics, the kinetic energy, (1/2)ρV2, of the fluid, where ρ is the density and V the speed.

This applies in cases where this quantity may be conveniently considered as adding to the static pressure; that is, the dynamic pressure at a given point is the difference between the static pressure at that point and the total pressure at the stagnation point of the same streamline. This concept must be distinguished from the hydrodynamic pressure, and the terminology is confusing in meteorological contexts.


Copyright 2022 American Meteorological Society (AMS). For permission to reuse any portion of this work, please contact permissions@ametsoc.org. Any use of material in this work that is determined to be “fair use” under Section 107 of the U.S. Copyright Act (17 U.S. Code § 107) or that satisfies the conditions specified in Section 108 of the U.S.Copyright Act (17 USC § 108) does not require AMS’s permission. Republication, systematic reproduction, posting in electronic form, such as on a website or in a searchable database, or other uses of this material, except as exempted by the above statement, require written permission or a license from AMS. Additional details are provided in the AMS Copyright Policy statement.