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Computational investigation of slot blowing for fuselage forebody flow control

机译:机身前部气流控制开槽的计算研究

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This paper presents a computational investigation of a tangential slot blowing concept for generating lateral control forces on an aircraft fuselage fore body. This work is aimed at aiding researchers in designing future experimental and computational models of tangential slot blowing. The effects of varying both the jet width and jet exit velocity for a fixed location slot are analyzed. The primary influence on the resulting side force of the forebody is seen to be the jet mass flow rate. This influence is insensitive to different combinations of slot widths and jet velocities over the range of variables considered. Both an actuator plane and an overset grid technique are used to model the tangential slot. The overset method successfully resolves the details of the actual slot geometry, extending the generality of the numerical method. The actuator plane concept predicts side forces similar to those produced by resolving the actual slot geometry.
机译:本文提出了切向吹槽概念的计算研究,该概念用于在飞机机身前体上产生侧向控制力。这项工作旨在帮助研究人员设计切向狭缝吹塑的未来实验和计算模型。分析了改变固定位置槽的射流宽度和射流出口速度的影响。可以看到,对前身产生的侧向力的主要影响是射流质量流速。在所考虑的变量范围内,这种影响对缝隙宽度和射流速度的不同组合不敏感。执行器平面和过冲网格技术都用于对切槽建模。覆盖方法成功地解决了实际槽几何的细节,从而扩展了数值方法的通用性。执行器平面概念预测的侧向力类似于解决实际插槽几何形状所产生的侧向力。

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