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    • 7. 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。
    • 10. 发明申请
    • MODIFICATION OF FLUID FLOW ABOUT BODIES AND SURFACES THROUGH VIRTUAL AERO-SHAPING OF AIRFOILS WITH SYNTHETIC JET ACTUATORS
    • 通过具有合成喷嘴执行机构的飞机的虚拟AERO形状来修改关于机体和表面的流体流动
    • WO02072421A3
    • 2003-12-04
    • PCT/US0207281
    • 2002-03-08
    • GEORGIA TECH RES INST
    • GLEZER ARIAMITAY MICHAEL
    • B64C21/04B64C23/00F15D1/12B64C21/08
    • F15D1/009B64C21/04B64C23/00B64C2230/02B64C2230/04B64C2230/06B64C2230/16B64C2230/18F15D1/12Y02T50/166
    • The present invention involves a system for altering the aerodynamic shape and/or fluid flow about a solid body.(110). The preferred embodiment comprises an obstruction (130) disposed on the solid body and extending outwardly from the solid body into the fluid flowing over the solid body and a synthetic jet actuator (10) embedded in the solid body such that said fluid flowing over the solid body encounters the obstruction before the synthetic jet actuator. The synthetic jet actuator includes a jet housing defined by walls, the jet housing having an internal chamber with a volume of fluid and an opening (16) in the jet housing connecting the chamber to an external environment having the fluid, and a volume changing means for periodically changing the volume within the internal chamber so that a series of fluid vortices are generated and projected in the external environment out from the opening of the jet housing. A synthetic jet stream is formed by the fluid vortices entraining the fluid of the external environment and is projected outwardly from the solid body. The fluid flowing over the solid body contacts the synthetic jet stream forming a recirculation region, thereby modifying both the flow field and the pressure distribution and similarly modifying both the lift and drag characteristics of the solid body.
    • 本发明涉及一种用于改变围绕固体的空气动力学形状和/或流体流动的系统(110)。 优选实施例包括设置在固体上并且从固体向外延伸到流过固体的流体的阻塞物(130)和嵌入固体中的合成射流致动器(10),使得流过固体的流体 身体在合成射流致动器之前遇到障碍物。 合成射流致动器包括由壁限定的射流壳体,喷射壳体具有具有一定体积流体的内部腔室和喷射壳体中的开口(16),其将腔室连接到具有流体的外部环境,以及体积改变装置 用于周期性地改变内部腔室内的体积,使得一系列流体旋涡产生并在外部环境中从射流壳体的开口突出。 通过夹带外部环境的流体的流体涡流形成合成射流,并从固体向外突出。 流过固体的流体接触形成再循环区域的合成射流,从而改变流场和压力分布,同样改变固体的提升和阻力特性。