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pressure gradient |
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pressure gradient [′presh·ər ‚grād·ē·ənt] (fluid mechanics) The rate of decrease (that is, the gradient) of pressure in space at a fixed time; sometimes loosely used to denote simply the magnitude of the gradient of the pressure field. Also known as barometric gradient. (meteorology) The change in atmospheric pressure per unit horizontal distance, usually measured along a line perpendicular to the isobars. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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Notice, especially from (2), that the geostrophic wind is the result of a balance between two forces, pressure gradient force (PGF) and Coriolis force (CF). Free flow of air into the trachea minimizes the pressure gradient between the trachea and mediastinum. 4), a graph of the reduced flow rate due to non-Newtonian behavior versus a dimensionless pressure gradient may be constructed. |
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