| 11. | This vortex acts like an aerodynamic fence and retards the flow separation region from encroaching into the tip region.
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| 12. | The felt delays flow separation in the boundary layer which reduces aerodynamic drag and gives the ball better flight properties.
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| 13. | Clean air under the car prevents flow separation from occurring in the diffuser, which would severely rob its performance.
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| 14. | As a result, there is flow separation, creating recirculating separation zones at the entrance of the narrower pipe.
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| 15. | Stages losses in compressor are mainly due to blade friction, flow separation, unsteady flow and vane-blade spacing.
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| 16. | A large flow gradient can lead to these factors, so flow separation and stagnation should be as small as possible.
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| 17. | :As particles flow along the channel the cross flow separation field pushes the molecules towards the bottom of the channel.
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| 18. | Contrary to the illustration, the aileron leading edge has to be rounded to prevent flow separation and flutter at negative deflections.
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| 19. | However, if the exit pressure is less than approximately 40 % that of ambient, then " flow separation " occurs.
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| 20. | Such flow separation causes a large increase in the pressure drag, since it greatly increases the effective size of the wing section.
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