convergent flow

См. также в других словарях:

• Convergent flow — is the movement of ground water to a common area. If flow is large enough a spring occurs and becomes the start of a creek or river. Convergence occurs when the surrounding topography roughly forms a V shape forcing the ground water to a singular …   Wikipedia

• convergent-divergent duct — A duct that has a decreasing cross section in the direction of fluid flow is convergent, until a minimum area is reached. Thereafter, the cross section increases, or becomes divergent. Relationship of pressure, temperature, and velocity in a… …   Aviation dictionary

• convergent-divergent exhaust duct — An exhaust duct used in supersonic aircraft. The cross sectional area of the duct decreases in the direction of the airflow until it is so small that the gas flow becomes supersonic. Thereafter, the duct enlarges so the gases further speed up… …   Aviation dictionary

• convergent duct — A duct whose cross sectional area decreases in the direction of fluid flow …   Aviation dictionary

• Choked flow — is a compressible flow effect. The parameter that becomes choked or limited is the velocity or the mass flow rate. Choked flow is a fluid dynamic condition associated with the Venturi effect. When a flowing fluid at a given pressure and… …   Wikipedia

• geomorphic component - hills —    A set of fundamental, three dimensional areas and positions that geomorphically define a hill or ridge. In descending topographic order, the geomorphic components are interfluve (stable summit area) ; crest (unstable summit converged… …   Glossary of landform and geologic terms

• Components of jet engines — Diagram of a typical gas turbine jet engine. Air is compressed by the fan blades as it enters the engine, and it is mixed and burned with fuel in the combustion section. The hot exhaust gases provide forward thrust and turn the turbines which… …   Wikipedia

• Nozzle — Rocket nozzle. Water nozzle. A nozzle is a device design …   Wikipedia

• igneous rock — Any of various crystalline or glassy, noncrystalline rocks formed by the cooling and solidification of molten earth material (magma). Igneous rocks comprise one of the three principal classes of rocks, the others being metamorphic and sedimentary …   Universalium

• Oceanic trench — Oceanic crust is formed at an oceanic ridge, while the lithosphere is subducted back into the asthenosphere at trenches. The oceanic trenches are hemispheric scale long but narrow topographic depressions of the sea floor. They are also the… …   Wikipedia

• Earth Sciences — ▪ 2009 Introduction Geology and Geochemistry       The theme of the 33rd International Geological Congress, which was held in Norway in August 2008, was “Earth System Science: Foundation for Sustainable Development.” It was attended by nearly… …   Universalium