partial pressure gradient

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• 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 — This article is about pressure in the physical sciences. For other uses, see Pressure (disambiguation). Pressure as exerted by particle collisions inside a closed container …   Wikipedia

• Pressure-Correction Methods — refer to a class of methods used in computational fluid dynamics for solving the Navier Stokes equations normally for incompressible flows. Common Properties The equations solved in this approach arise from the implicit time integration of the… …   Wikipedia

• gradient — [grā′dē ənt] adj. [L gradiens (gen. gradientis), prp. of gradi, to step: see GRADE] ascending or descending with a uniform slope n. 1. a) a slope, as of a road or railroad b) the degree of such slope 2. Biol. a gradation in rate of growth,… …   English World dictionary

• gradient — /gray dee euhnt/, n. 1. the degree of inclination, or the rate of ascent or descent, in a highway, railroad, etc. 2. an inclined surface; grade; ramp. 3. Physics. a. the rate of change with respect to distance of a variable quantity, as… …   Universalium

• Partial differential equation — A visualisation of a solution to the heat equation on a two dimensional plane In mathematics, partial differential equations (PDE) are a type of differential equation, i.e., a relation involving an unknown function (or functions) of several… …   Wikipedia

• pressure — 1. A stress or force acting in any direction against resistance. 2. (P, frequently followed by a subscript indicating location)In physics and physiology, the force per unit area exerted by a gas or liquid against the walls of its container or… …   Medical dictionary

• gradient — noun Etymology: Latin gradient , gradiens, present participle of gradi Date: 1835 1. a. the rate of regular or graded ascent or descent ; inclination b. a part sloping upward or downward 2. change in the value of a quantity (as temperature,… …   New Collegiate Dictionary

• gradient — gra•di•ent [[t]ˈgreɪ di ənt[/t]] n. 1) civ the degree of inclination of a highway, railroad, etc., or the rate of ascent or descent of a stream or river 2) an inclined surface; grade; ramp 3) phs a) the rate of change with respect to distance of… …   From formal English to slang

• Decompression (diving) — Divers decompressing in the water at the end of a dive Decompression in the context of diving derives from the reduction in ambient pressure experienced by the diver during the ascent at the end of a dive or hyperbaric exposure and refers to both …   Wikipedia

• Hypoxia (medical) — Hypoxia ICD 9 799.02 MeSH D000860 Hypoxia, or hypoxiation, is a pathological condition in which the body as a whole (generalized hypoxia) or a region of the body (tissue hypoxia) is deprived of adequate ox …   Wikipedia