1. Both these effects help to delay or eliminate flow separation . 2. A more turbulent boundary layer, in turn, delays the local flow separation . 3. These deposits then propagate downstream via a flow separation process, thus developing bedform fields. 4. Once a critical height of grains is reached, flow separation occurs over the new structure. 5. Examples include floating debris, oil spills, surface drifters, and control of unsteady flow separation . 6. This represents an optimum compromise between the pressure drag from flow separation and skin friction from induced turbulence. 7. This led to flow separation near the flap, and a decrease in effectiveness of the USB system. 8. Flow separation begins to occur at small angles of attack while attached flow over the wing is still dominant.9. Due to being sited in an area of flow separation , the new ventral fins also caused unpleasant vibrations. 10. All MHV models are vulnerable to thrombus formation due to high shear stress, stagnation, and flow separation .