**Darcy's law** — is a phenomenologically derived constitutive equation that describes the flow of a fluid through a porous medium. The law was formulated by Henry Darcy based on the results of experiments[1] on the flow of water through beds of sand. It also… … Wikipedia

**Darcy** — For the 19th century French scientist, see Henry Darcy. This article is about the unit of fluid permeability. For other uses, see Darcy (disambiguation). A darcy (or darcy unit) and millidarcy (mD) are units of permeability, named after Henry… … Wikipedia

**darcy** — unit of permeability of rock to various substances Units of Measurement … Phrontistery dictionary

**Darcy–Weisbach equation** — In fluid dynamics, the Darcy–Weisbach equation is a phenomenological equation, which relates the head loss or pressure loss due to friction along a given length of pipe to the average velocity of the fluid flow. The equation is named after Henry… … Wikipedia

**Darcy-Weisbach equation** — The Darcy Weisbach equation is an important and widely used phenomenological equation in hydraulics. It relates the head loss or pressure loss due to friction along a given length of pipe to the average velocity of the fluid flow. Head loss form… … Wikipedia

**Darcy (disambiguation)** — Contents 1 Science 2 People 2.1 Surnames 2.2 First names … Wikipedia

**darcy** — a CGS unit of permeability. Permeability is the extent to which a solid allows the flow of a fluid. This flow depends on the properties of the solid and also on the dynamic viscosity of the fluid and the difference in pressure driving the flow … Dictionary of units of measurement

**Darcy, Henri-Philibert-Gaspard** — ▪ French engineer born June 10, 1803, Dijon, France died Jan. 3, 1858, Paris French hydraulic engineer who first derived the equation (now known as Darcy s law) that governs the laminar (nonturbulent) flow of fluids in homogeneous, porous… … Universalium

**Darcy's law** — ▪ hydrology mathematical relationship discovered (1856) by the French engineer Henri Darcy (Darcy, Henri Philibert Gaspard) that governs the flow of groundwater through granular media or the flow of other fluids through permeable material,… … Universalium

**darcy** — ˈdärsē noun ( s) Etymology: after Henri P.G. Darcy died 1858 French hydraulic engineer : a unit of porous permeability in physics equal to the permeability of a medium through which the rate of flow of a fluid having one centipoise viscosity… … Useful english dictionary