At a Reynolds number between 10^5 and 10^6, the drag coefficient takes a sudden dip. The size of the wake decreases, indicating that the boundary layer separation on the cylinder or sphere occurs ...

When separation occurs, however ... Friction is the source of the irreversibility of fluid flow: either through the formation of boundary layers over the surface, or large eddies in the wake (in ...

The state and properties of boundary layer (BL) flows are very important issues for the ... Prandtl in 1904 in Göttingen. Flow separation in regions of laminar flow, the detection of position and form ...