| 摘要 |
Turbulence in the boundary layer of a flow of air across a surface (14) is controlled by sucking air from the surface (14). A plurality of turbulence detectors (16) are located in the surface (14) downstream of apertures (15) provided in the surface (14). The apertures (15) are connected to a suction pump (21). Air is sucked through the apertures (15) until the air flow of the most downstream of the detectors (16) is non-turbulent. <IMAGE>
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