TERMIUM Plus®
The Government of Canada’s terminology and linguistic data bank.
LAMINAR BOUNDARY LAYER [7 records]
Record 1 - internal organization data 2014-11-18
Record 1, English
Record 1, Subject field(s)
- Aerodynamics and Theory of Gases
- Flights (Air Transport)
Record 1, Main entry term, English
- critical Reynolds number 1, record 1, English, critical%20Reynolds%20number
Record 1, Abbreviations, English
Record 1, Synonyms, English
Record 1, Textual support, English
Record number: 1, Textual support number: 1 DEF
A Reynolds number above which the flow in the boundary layer no longer remains laminar but becomes turbulent. 1, record 1, English, - critical%20Reynolds%20number
Record 1, French
Record 1, Domaine(s)
- Théorie des gaz et aérodynamique
- Vols (Transport aérien)
Record 1, Main entry term, French
- nombre de Reynolds critique
1, record 1, French, nombre%20de%20Reynolds%20critique
masculine noun
Record 1, Abbreviations, French
Record 1, Synonyms, French
Record 1, Textual support, French
Record number: 1, Textual support number: 1 DEF
Nombre de Reynolds pour lequel se produit le changement de régime [...] de laminaire à turbulent. 1, record 1, French, - nombre%20de%20Reynolds%20critique
Record 1, Spanish
Record 1, Textual support, Spanish
Record 2 - internal organization data 2014-04-23
Record 2, English
Record 2, Subject field(s)
- Fluid Mechanics and Hydraulics (Physics)
Record 2, Main entry term, English
- laminar boundary layer
1, record 2, English, laminar%20boundary%20layer
correct
Record 2, Abbreviations, English
- LBL 2, record 2, English, LBL
correct
Record 2, Synonyms, English
- laminar flow boundary layer 3, record 2, English, laminar%20flow%20boundary%20layer
correct
Record 2, Textual support, English
Record number: 2, Textual support number: 1 DEF
The layer immediately next to a fixed boundary in which laminar flow prevails. 4, record 2, English, - laminar%20boundary%20layer
Record number: 2, Textual support number: 1 CONT
Aircraft... in general,... are not certified to fly with any contamination [(e. g. possible contaminants : frost, squashed bugs, anti-icing fluids, etc.) ] on the lift and control surfaces. However,... small amounts of surface contamination usually result in roughness. This causes local changes in the pressure gradient in the boundary layer and can cause turbulence in a laminar flow boundary layer or complete flow separation from the surface. 3, record 2, English, - laminar%20boundary%20layer
Record number: 2, Textual support number: 2 CONT
Above a surface, a laminar layer will develop and fluid velocity will increase with distance from the surface, but not indefinitely. At some point, flow will become turbulent, with the laminar sublayer separating the turbulent layer from the surface. In the real world, most laminar boundary layers are extremely thin(order of 1 mm), but can be of biological importance, for example, next to plant leaves or as invertebrate refuges in streams. 5, record 2, English, - laminar%20boundary%20layer
Record number: 2, Textual support number: 1 OBS
... flow is smooth and nonturbulent. 5, record 2, English, - laminar%20boundary%20layer
Record number: 2, Textual support number: 2 OBS
The equations of motion of the fluid in the laminar boundary layer are the Navier-Stokes equations containing only the inertia and molecular viscosity terms. 6, record 2, English, - laminar%20boundary%20layer
Record 2, French
Record 2, Domaine(s)
- Mécanique des fluides et hydraulique (Physique)
Record 2, Main entry term, French
- couche limite laminaire
1, record 2, French, couche%20limite%20laminaire
correct, feminine noun
Record 2, Abbreviations, French
Record 2, Synonyms, French
Record 2, Textual support, French
Record number: 2, Textual support number: 1 DEF
Couche voisine d'une surface limite donnée dans laquelle les forces de viscosité moléculaire sont grandes parce que le gradient de vitesse normal à la surface limite est élevé. 2, record 2, French, - couche%20limite%20laminaire
Record number: 2, Textual support number: 1 CONT
La présence d'une couche limite laminaire à la surface de notre peau limite notamment nos échanges de chaleur avec l'air extérieur et permet de maintenir la température de surface de nos mains ou de notre figure à une valeur voisine de 30 °C même si l'air extérieur est froid. 3, record 2, French, - couche%20limite%20laminaire
Record number: 2, Textual support number: 1 OBS
Les équations du mouvement du fluide dans la couche limite laminaire sont les équations de Navier-Stokes ne contenant que les termes d'inertie et de viscosité moléculaire. 2, record 2, French, - couche%20limite%20laminaire
Record 2, Spanish
Record 2, Campo(s) temático(s)
- Mecánica de fluidos e hidráulica (Física)
Record 2, Main entry term, Spanish
- capa límite laminar
1, record 2, Spanish, capa%20l%C3%ADmite%20laminar
feminine noun
Record 2, Abbreviations, Spanish
Record 2, Synonyms, Spanish
Record 2, Textual support, Spanish
Record number: 2, Textual support number: 1 DEF
Capa inmediata a una superficie límite dada en la cual son elevadas las fuerzas de viscosidad molecular porque es alto el gradiente de velocidad normal a la superficie límite. 1, record 2, Spanish, - capa%20l%C3%ADmite%20laminar
Record number: 2, Textual support number: 1 OBS
Las ecuaciones de movimiento del fluido en la capa límite laminar son las de Navier-Stokes, que contienen sólo los términos de inercia y de viscosidad molecular. 1, record 2, Spanish, - capa%20l%C3%ADmite%20laminar
Record 3 - internal organization data 2010-02-03
Record 3, English
Record 3, Subject field(s)
- Aerodynamics and Theory of Gases
- Aeronautical Engineering and Maintenance
- Flights (Air Transport)
Record 3, Main entry term, English
- boundary layer transition 1, record 3, English, boundary%20layer%20transition
Record 3, Abbreviations, English
Record 3, Synonyms, English
Record 3, Textual support, English
Record number: 3, Textual support number: 1 OBS
--the transition from laminar to turbulent flow in a boundary layer. 1, record 3, English, - boundary%20layer%20transition
Record 3, French
Record 3, Domaine(s)
- Théorie des gaz et aérodynamique
- Aérotechnique et maintenance
- Vols (Transport aérien)
Record 3, Main entry term, French
- transition de la couche limite 1, record 3, French, transition%20de%20la%20couche%20limite
Record 3, Abbreviations, French
Record 3, Synonyms, French
Record 3, Textual support, French
Record number: 3, Textual support number: 1 OBS
la séparation entre la couche limite laminaire et la couche limite turbulente est appelée --. 1, record 3, French, - transition%20de%20la%20couche%20limite
Record 3, Spanish
Record 3, Textual support, Spanish
Record 4 - internal organization data 2004-10-20
Record 4, English
Record 4, Subject field(s)
- Atmospheric Physics
- Air Transport
Record 4, Main entry term, English
- turbulent boundary layer
1, record 4, English, turbulent%20boundary%20layer
correct
Record 4, Abbreviations, English
Record 4, Synonyms, English
Record 4, Textual support, English
Record number: 4, Textual support number: 1 DEF
The layer in which the Reynolds stresses are much larger than the viscous stresses. 2, record 4, English, - turbulent%20boundary%20layer
Record number: 4, Textual support number: 1 OBS
If the Reynolds number is sufficiently high, there is a turbulent layer adjacent to the laminar boundary layer. 2, record 4, English, - turbulent%20boundary%20layer
Record 4, French
Record 4, Domaine(s)
- Physique de l'atmosphère
- Transport aérien
Record 4, Main entry term, French
- couche limite turbulente
1, record 4, French, couche%20limite%20turbulente
correct, feminine noun
Record 4, Abbreviations, French
Record 4, Synonyms, French
Record 4, Textual support, French
Record number: 4, Textual support number: 1 DEF
Couche dans laquelle les tensions de Reynolds sont beaucoup plus grandes que les contraintes de viscosité. 2, record 4, French, - couche%20limite%20turbulente
Record number: 4, Textual support number: 1 OBS
Lorsque le nombre de Reynolds est suffisamment élevé, il y a une couche turbulente adjacente à la couche limite laminaire. 2, record 4, French, - couche%20limite%20turbulente
Record 4, Spanish
Record 4, Campo(s) temático(s)
- Física de la atmósfera
- Transporte aéreo
Record 4, Main entry term, Spanish
- capa límite turbulenta
1, record 4, Spanish, capa%20l%C3%ADmite%20turbulenta
correct, feminine noun
Record 4, Abbreviations, Spanish
Record 4, Synonyms, Spanish
Record 4, Textual support, Spanish
Record number: 4, Textual support number: 1 DEF
Capa en la cual las tensiones de Reynolds son mucho mayores que las tensiones de viscosidad. 2, record 4, Spanish, - capa%20l%C3%ADmite%20turbulenta
Record number: 4, Textual support number: 1 OBS
Si el número de Reynolds es suficientemente alto hay una capa turbulenta adyacente a la capa límite laminar. 2, record 4, Spanish, - capa%20l%C3%ADmite%20turbulenta
Record 5 - internal organization data 2003-12-17
Record 5, English
Record 5, Subject field(s)
- Fluid Mechanics and Hydraulics (Physics)
- Thermodynamics
- Scientific Measurements and Analyses
Record 5, Main entry term, English
- transition point
1, record 5, English, transition%20point
correct
Record 5, Abbreviations, English
Record 5, Synonyms, English
- transition temperature 2, record 5, English, transition%20temperature
correct
Record 5, Textual support, English
Record number: 5, Textual support number: 1 DEF
the temperature at which a substance is converted from one state to another. 3, record 5, English, - transition%20point
Record number: 5, Textual support number: 2 DEF
the point of change from laminar to turbulent flow in a boundary layer. 4, record 5, English, - transition%20point
Record 5, French
Record 5, Domaine(s)
- Mécanique des fluides et hydraulique (Physique)
- Thermodynamique
- Mesures et analyse (Sciences)
Record 5, Main entry term, French
- température de transition
1, record 5, French, temp%C3%A9rature%20de%20transition
correct, feminine noun
Record 5, Abbreviations, French
Record 5, Synonyms, French
- point de transition 2, record 5, French, point%20de%20transition
correct, masculine noun
Record 5, Textual support, French
Record number: 5, Textual support number: 1 DEF
Température à laquelle une substance passe d'une phase à une autre. 3, record 5, French, - temp%C3%A9rature%20de%20transition
Record 5, Spanish
Record 5, Campo(s) temático(s)
- Mecánica de fluidos e hidráulica (Física)
- Termodinámica
- Medición y análisis (Ciencias)
Record 5, Main entry term, Spanish
- punto de transición
1, record 5, Spanish, punto%20de%20transici%C3%B3n
correct, masculine noun
Record 5, Abbreviations, Spanish
Record 5, Synonyms, Spanish
- punto de transformación 2, record 5, Spanish, punto%20de%20transformaci%C3%B3n
correct, masculine noun
- temperatura de transición 3, record 5, Spanish, temperatura%20de%20transici%C3%B3n
correct, feminine noun
Record 5, Textual support, Spanish
Record number: 5, Textual support number: 1 DEF
Temperatura a la cual una substancia cambia de estado de agregación a otro (transición de primer orden), o bien, temperatura de culminación de un cambio gradual, tal como el punto lamda, o el punto Curie (transición de segundo orden). 4, record 5, Spanish, - punto%20de%20transici%C3%B3n
Record 6 - internal organization data 1999-03-31
Record 6, English
Record 6, Subject field(s)
- Engineering
- Fluid Mechanics and Hydraulics (Physics)
- Hydroplanes and Hydrofoils
Record 6, Main entry term, English
- cavitating
1, record 6, English, cavitating
correct, adjective
Record 6, Abbreviations, English
Record 6, Synonyms, English
Record 6, Textual support, English
Record number: 6, Textual support number: 1 CONT
Noise from cavitating hydrofoils as influenced by boundary-layer development. [Paper by] William K. Blake and F. Ellsworth Geib, Jr.(...). This paper describes measurements of noise from cavitating flow over a hydrofoil.(Cavitation was generated on a hydrofoil in the presence of a separated laminar boundary layer on the one hand and of a fully turbulent attached boundary layer on the other). 2, record 6, English, - cavitating
Record number: 6, Textual support number: 1 OBS
cavitation: Disturbance around revolving propeller blades struts, etc., caused by collapse of transient pressure disturbances resulting from flow of water over their surfaces. 3, record 6, English, - cavitating
Record 6, French
Record 6, Domaine(s)
- Ingénierie
- Mécanique des fluides et hydraulique (Physique)
- Hydroglisseurs et hydroptères
Record 6, Main entry term, French
- cavitant
1, record 6, French, cavitant
correct, adjective
Record 6, Abbreviations, French
Record 6, Synonyms, French
Record 6, Textual support, French
Record number: 6, Textual support number: 1 DEF
Produisant un mouvement de cavitation. 2, record 6, French, - cavitant
Record number: 6, Textual support number: 1 CONT
[L'hydroptère] se justifie à chaque fois qu'il est souhaitable de disposer d'une plate-forme très stable: ce peut être le cas des utilisateurs militaires, lorsque l'hydroptère est utilisé comme plate-forme de tir. D'où l'intérêt manifesté par l'U.S. Navy et l'OTAN: côté vitesse, des progrès peuvent être attendus de l'utilisation sur les ailettes de profils cavitants et super-cavitants (profils à "base ventilée", etc.). 3, record 6, French, - cavitant
Record number: 6, Textual support number: 1 OBS
cavitation: Phénomène qui se produit lorsqu'une hélice tourne trop vite: l'air contenu dans l'eau forme une cavité gazeuse autour des pales de l'hélice qui tourne alors dans le vide. 4, record 6, French, - cavitant
Record 6, Spanish
Record 6, Textual support, Spanish
Record 7 - internal organization data 1986-11-25
Record 7, English
Record 7, Subject field(s)
- Aerodynamics and Theory of Gases
- Aeronautical Engineering and Maintenance
Record 7, Main entry term, English
- laminar flow system
1, record 7, English, laminar%20flow%20system
correct
Record 7, Abbreviations, English
Record 7, Synonyms, English
Record 7, Textual support, English
Record number: 7, Textual support number: 1 CONT
The McDonnell Douglas proposal for a practical laminar flow system is based on perforated skins through which the boundary layer is sucked away in flight. 1, record 7, English, - laminar%20flow%20system
Record 7, French
Record 7, Domaine(s)
- Théorie des gaz et aérodynamique
- Aérotechnique et maintenance
Record 7, Main entry term, French
- système de laminéarisation de l'écoulement
1, record 7, French, syst%C3%A8me%20de%20lamin%C3%A9arisation%20de%20l%27%C3%A9coulement
masculine noun
Record 7, Abbreviations, French
Record 7, Synonyms, French
Record 7, Textual support, French
Record number: 7, Textual support number: 1 CONT
Le système de laminéarisation de l'écoulement proposé par McDonnell Douglas fait appel à des revêtements perforés permettant l'aspiration de la couche limite en vol. 1, record 7, French, - syst%C3%A8me%20de%20lamin%C3%A9arisation%20de%20l%27%C3%A9coulement
Record 7, Spanish
Record 7, Textual support, Spanish
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