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On the Use of Synthetic Jet Actuators to Induce Jet-Vectoring in Nozzles

机译:关于使用合成射流致动器来诱导喷嘴中的射流矢量的研究

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The application of Synthetic Jet (SJ) flow manipulators to the thrust vectoring of supersonic nozzles is investigated numerically. The thrust vectoring is obtained here by SJ induced flow separations, which generate the required asymmetry of the nozzle wall pressure distribution. The computational technique is based on a well-assessed mathematical model of the compressible URANS equations. The domain-decomposition approach is adopted for coupling the flow in the actuators with the nozzle flow. Nozzle performances and thrust vector angles have been computed for a fixed Nozzle Pressure Ratio. Application of SJ to Shock Vector Control and to Dual-Throat Nozzle technologies is investigated. The open-loop response of the nozzles has been computed under different SJ forcing in order to investigate the thrust vectoring effectiveness and controllability.
机译:数值研究了合成射流(SJ)流动操纵器在超音速喷嘴推力矢量化中的应用。在此,通过SJ诱导的流分离获得推力矢量,该分离产生所需的喷嘴壁压力分布不对称性。该计算技术基于对可压缩URANS方程的正确评估的数学模型。采用域分解方法将执行器中的流量与喷嘴流量耦合。对于固定的喷嘴压力比,已计算出喷嘴性能和推力矢量角度。研究了SJ在冲击矢量控制和双喉喷嘴技术中的应用。为了研究推力矢量化的有效性和可控性,在不同的SJ力作用下计算了喷嘴的开环响应。

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