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    • 1. 发明申请
    • METHOD AND APPARATUS FOR CONTROLLING FLOW ABOUT A TURRET
    • 控制流程的方法和装置
    • WO2012012036A1
    • 2012-01-26
    • PCT/US2011/040151
    • 2011-06-13
    • THE BOEING COMPANYULLMAN, Alan, Z.
    • ULLMAN, Alan, Z.
    • B64C7/00B64C21/04B64C23/04B64D7/00B64D47/08
    • B64C7/00B64C21/04B64C23/04B64C2230/16B64D7/00B64D47/08F15D1/008Y02T50/166Y02T50/53Y10T137/0396Y10T137/206
    • Methods and apparatus are provided to control flow separation of an ambient flow along a surface and about a turret (12), such as by reducing flow separation aft of the turret. By reducing flow separation, the resulting turbulence may be similarly reduced such that the performance of a system, such as a laser system, housed by the turret may be improved. To reduce flow separation, a motive flow may be provided by ejector nozzles (32) that open through the surface and are positioned proximate to and aft of the turret relative to the ambient flow. The motive flow has a greater velocity than the ambient flow to thereby create a region aft of the turret of reduced pressure relative to an ambient pressure. Within this region of reduced pressure aft of the turret, a portion of the ambient flow mixes with the motive flow, thereby reducing or eliminating flow separation.
    • 提供了方法和装置,以控制环流沿着表面和转台(12)的流动分离,例如通过减小转塔后部的流动分离。 通过减少流动分离,可以类似地减小所产生的湍流,使得可以改善由转台容纳的诸如激光系统的系统的性能。 为了减少流动分离,可以通过喷射器喷嘴(32)来提供动力流,喷射器喷嘴(32)通过表面打开,并且相对于环境流被定位在转塔附近和后方。 动力流动具有比环境流动更大的速度,由此产生相对于环境压力的减小转塔的后部区域。 在转塔后部的减压区域内,一部分环境流与动力流混合,从而减少或消除流动分离。