Boundary layer

In physics and fluid mechanics, the boundary layer is that layer of fluid in the immediate vicinity of a bounding surface. In the atmosphere the boundary layer is the air layer near the ground affected by diurnal heat, moisture or momentum transfer to or from the surface. On an aircraft wing the boundary layer is the part of the flow close to the wing. The Boundary layer effect occurs at the field region in which all changes occur in the flow pattern. The boundary layer distorts surrounding nonviscous flow. It is a phenonomen of viscous forces. This effect is related to the Leidenfrost effect and the Reynolds number.

External links

• non-formatted text heresary.shtml#boundary_layer National Science Digital Library - Boundary Layer
• Moore, Franklin K., "Displacement effect of a three-dimensional boundary layer". NACA Report 1124, 1953.
• Benson, Tom, "Boundary layer". NASA Glenn Learning Technologies.
• Boundary layer separation
• Boundary layer equations: Exact Solutions - from EqWorld