What is Relaminarization?

relaminarization (countable and uncountable, plural relaminarizations) A second or subsequent laminarization; the act of relaminarizing.

What are the characteristics of boundary layer?

The fluid in the boundary layer is subjected to shearing forces. A range of velocities exists across the boundary layer from maximum to zero, provided the fluid is in contact with the surface. Boundary layers are thinner at the leading edge of an aircraft wing and thicker toward the trailing edge.

Who introduced concept of boundary layer?

Ludwig Prandtl
In 1904, one year before Einstein published his miraculous papers, Ludwig Prandtl proposed the revolutionary concept of a boundary layer.

What is a boundary layer and what causes it?

Aerodynamic forces are generated between the fluid and the object. This creates a thin layer of fluid near the surface in which the velocity changes from zero at the surface to the free stream value away from the surface. Engineers call this layer the boundary layer because it occurs on the boundary of the fluid.

When does a flow have a relaminarization?

In carrying out this examination, a pragmatic definition of reversion is adopted, according to which a flow has relaminarized if its development is understood without recourse to any model for turbulent shear flow.

Can a relaminarization occur in a turbulent state?

Relaminarization o Fluid Flows f 223 systems; if crystallization is possible out of liquids, so too is relaminarization from a turbulent state. Indeed, should there still be any doubters, it is easy to set up simple experiments showing relaminarization (variously also called reversion, and inverse or reverse transition).

What do you call a quasi-laminar flow?

Under these circumstances, the flow may be called quasi-laminar; it carries a residual turbulence that is inherited from the previous history of the flow but has been rendered passive. The chapter discusses three reverting flows.