boundary layer
[ˈbaʊndəri ˈleɪər]
nounpl: boundary layers
camada limite
1. In fluid dynamics, the thin layer of fluid in immediate contact with a bounding surface, where viscous forces are significant and flow velocity changes from zero at the surface to the free stream velocity
The boundary layer on an aircraft wing is crucial for understanding aerodynamic drag.
A camada limite na asa de uma aeronave é crucial para entender o arrasto aerodinâmico.
2. In heat transfer and mass transfer, the region where temperature or concentration gradients are steep near a surface
Heat transfer efficiency depends on the thickness of the thermal boundary layer.
A eficiência da transferência de calor depende da espessura da camada limite térmica.
3. A transitional zone between two different regions with distinct properties
The boundary layer between the warm and cold air masses caused severe weather.
A camada limite entre as massas de ar quente e frio causou tempo severo.
This is a technical term predominantly used in engineering, physics, and aeronautics education and research. It is part of the standard international scientific vocabulary and is used identically across English-speaking countries and Brazil, with no significant regional variations. The concept is fundamental to fluid mechanics courses worldwide.
Related Idioms & Phrases
within the boundary layer
boundary layer separation
boundary layer transition
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