pressure gradient


pressure gradient
The change in pressure with horizontal distance at a fixed time. The higher the pressure gradient, the faster is the fluid flow.
Pressure gradient.

Aviation dictionary. 2014.

Look at other dictionaries:

  • pressure gradient — n. the rate of decrease in barometric pressure in a given region at a particular time …   English World dictionary

  • Pressure gradient — In atmospheric sciences (meteorology, climatology and related fields), the pressure gradient (typically of air, more generally of any fluid) is a physical quantity that describes in which direction and at what rate the pressure changes the most… …   Wikipedia

  • pressure gradient — noun : the space rate of variation of pressure in a given direction; specifically : such rate of variation in a direction normal to an isobar * * * Meteorol. the change in atmospheric pressure per unit of horizontal distance in the direction in… …   Useful english dictionary

  • pressure gradient — noun The rate of decrease (gradient) of pressure in space at a fixed time. The term is sometimes used to denote simply the magnitude of the gradient of the pressure field …   Wiktionary

  • pressure gradient — Meteorol. the change in atmospheric pressure per unit of horizontal distance in the direction in which pressure changes most rapidly. Also called barometric gradient. [1915 20] * * * …   Universalium

  • pressure gradient — /ˈprɛʃə greɪdiənt/ (say preshuh graydeeuhnt) noun the decrease in atmospheric pressure per unit of horizontal distance in the direction in which pressure decreases most rapidly …   Australian English dictionary

  • pressure gradient —   in the atmosphere, the rate at which pressure changes across space. Higher rates of change will create faster winds …   Geography glossary

  • Pressure-gradient force — The pressure gradient force is not actually a force but the acceleration of air due to pressure difference (a force per unit mass). It is usually responsible for accelerating a parcel of air from a high atmospheric pressure region to a low… …   Wikipedia

  • Adverse pressure gradient — An adverse pressure gradient occurs when the static pressure increases in the direction of the flow. This is important for boundary layers, since increasing the fluid pressure is akin to increasing the potential energy of the fluid, leading to a… …   Wikipedia

  • hepatic vein pressure gradient — hepatic venous pressure gradient the difference between the wedged hepatic venous pressure and the free hepatic venous pressure, used to assess portal hypertension …   Medical dictionary


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