Parametric Study of Sweeping Jet Actuators for Separation Control
Parametric Study of Sweeping Jet Actuators for Separation Control
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DOI：
10.2514/6.2010-4247
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发表时间：
2010-06
期刊：
影响因子：
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通讯作者：
R. Woszidlo;H. Nawroth;S. Raghu;I. Wygnanski
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文献类型：
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作者：
R. Woszidlo;H. Nawroth;S. Raghu;I. Wygnanski
本文研究了利用后掠射流激励器阵列对一般多襟翼翼型的分离控制。这些射流从毫米级喷嘴喷出，以类似于挡风玻璃刮水器的扫掠方式从一侧振荡到另一侧，并且此后被称为扫掠射流致动器。在实验中研究了不同的襟翼尺寸和襟翼偏转高达45 o。MFA在襟翼上的几个弦向位置上装有成排的扫掠喷流作动器，使几何参数和流体动力学参数能够广泛变化，以研究分离控制。讨论了襟翼尺寸、作动器位置和作动参数对翼型升阻系数的影响。
In this paper, studies of separation control over a generic Multiple Flap Airfoil (MFA) using sweeping jet actuator arrays are presented. These jets, exiting from millimeter-scale nozzles, oscillate from side-to-side in a sweeping manner similar to windshield wipers and are henceforth referred to as sweeping jet actuators. Different flap sizes and flap deflections up to 45 o were investigated in the experiments. The MFA, with integrated rows of sweeping jet actuators at several chordwise locations on the flaps, enabled an extensive variation of geometrical and fluid dynamical parameters to study separation control. The effect of flap size, actuator location and actuation parameters on the lift and drag coefficients of the airfoil are discussed.