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首页> 外文期刊>The Aeronautical Journal >Control of trailing-edge separation by tangential blowing inside the bubble
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Control of trailing-edge separation by tangential blowing inside the bubble

机译：通过气泡内的切向吹气控制后沿分离

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Experiments have been performed investigating the effectiveness of steady tangential blowing, with the blowing slot located downstream of separation (but inside the separation bubble) to control a trailing-edge separated flow at low speeds. Trailing-edge separation was induced on a two-dimensional aerofoil-like body and the shear layer closure occurred in the near-wake. Measurements made consisted of model surface pressures and mean velocity, turbulent shear stress and kinetic energy profiles in the separated zone using a two-component LDV system. It is explicitly demonstrated that the novel concept of tangential blowing inside the bubble can be an effective means of control for trailing-edge separated flows as well. Blowing mass and momentum requirements for the suppression of wall and wake flow reversals have been estimated.
机译：已经进行了一些实验，研究了稳定切向吹气的效果，吹气槽位于分离下游（但在分离气泡内部），以低速控制后缘分离流。在二维翼面状物体上引起后缘分离，并且剪切层闭合在近尾时发生。使用两组分LDV系统进行的测量包括模型表面压力和平均速度，湍流剪切应力和动能分布图。明确表明，气泡内切向吹的新概念也可以作为控制尾沿分离流的有效手段。估计了抑制壁和尾流逆转的吹气质量和动量要求。

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