- velocity boundary layer
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динамический пограничный слой
Англо-русский словарь технических терминов. 2005.
velocity boundary layer
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Boundary layer — For the anatomical structure, see Boundary layer of uterus. Boundary layer visualization, showing transition from laminar to turbulent condition In physics and fluid mechanics, a boundary layer is that layer of fluid in the immediate vicinity of… … Wikipedia
Boundary layer suction — is technique in which an air pump is used to extract the boundary layer at the wing or the inlet of an aircraft. Improving the air flow can reduce drag. Improvements in fuel efficiency have been estimated as high as 30%. The boundary layerThe air … Wikipedia
Boundary-layer thickness — This page describes some parameters used to measure the properties of boundary layers. Consider a stationary body with a turbulent flow moving around it, like the semi infinite flat plate with air flowing over the top of the plate. At the solid… … Wikipedia
boundary layer — The layer of fluid, close to the surface of a body placed in a moving stream, in which the impact pressure is reduced as a result of the viscosity of the fluid. A velocity gradient exists through the boundary layer, ranging from the velocity of… … Aviation dictionary
Stokes boundary layer — in a viscous fluid due to the harmonic oscillation of a plane rigid plate. Velocity (blue line) and particle excursion (red dots) as a function of the distance to the wall. In fluid dynamics, the Stokes boundary layer, or oscillatory boundary… … Wikipedia
Planetary boundary layer — Depiction of where the planetary boundary layer lies on a sunny day The planetary boundary layer (PBL), also known as the atmospheric boundary layer (ABL), is the lowest part of the atmosphere and its behavior is directly influenced by its… … Wikipedia
Blasius boundary layer — A Blasius boundary layer, in physics and fluid mechanics, describes the steady two dimensional boundary layer that forms on a semi infinite plate which is held parallel to a constant unidirectional flow U.Within the boundary layer the usual… … Wikipedia
boundary layer — /ˈbaʊndri leɪə/ (say bowndree layuh) noun Aeronautics, Physics, etc. the thin layer of fluid next to the surface of a moving body in which there is a transition between the velocity of the body on one side, and the velocity of the fluid on the… …
blown-boundary-layer control — A system in which the blown boundary layer uses high velocity air blown through ducts or jets to energize the boundary layer on the upper surface of the wing at low speeds, especially during approach and landing to keep the boundary layer from… … Aviation dictionary
laminar boundary layer — A series of layers of airflow over a body with each successive layer having a higher velocity than the adjacent one and with the bottom most layer having a zero velocity. The opposite of laminar airflow is turbulent airflow … Aviation dictionary
Velocity stack — A velocity stack is a generally cylindrical tube with a radiused inlet end device which is added onto the air entry location or locations of an engines intake system, carburetor or fuel injection. It can be attached to an airbox inlet or to each… … Wikipedia
