Boundary Layer
The portion of a fluid flowing past a body that is in the immediate vicinity of the body and that has a reduced flow due to the forces of adhesion and viscosity.
- Example
- The layer of air next to the Earth's surface, typically a few hundred metres thick. Ordinarily, only the boundary layer is appreciably affected by the properties of the surface. The region above the boundary layer is called the 'free atmosphere'.
See also: Atmospheric Boundary Layer.
Subjects: Physics