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首页> 外文期刊>Journal of Aircraft >Prediction of Control Effectiveness for a Highly Swept Unmanned Air Vehicle Configuration
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Prediction of Control Effectiveness for a Highly Swept Unmanned Air Vehicle Configuration

机译：高扫频无人机配置控制效果的预测

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摘要

A study into the prediction of the effectiveness of different trailing-edge controls on an unmanned combat aerial vehicle configuration, on which complex vortical flow develops at moderate to high angles of attack, is described. Stability and control of these vehicles is demanding and requires early knowledge of the changes in forces and moments from control-surface deflections. Computational results are compared with data from wind-tunnel tests over the Mach number range 0.146 = M = 0.9 for undeflected controls. The effectiveness of the controls at subsonic and transonic conditions is then discussed. The influence of the mesh treatment and turbulence model on the realism of the predictions is considered. The computational-fluid-dynamics predictions show good agreement with measurements and show limited sensitivity to geometry treatment and turbulence model for the flow conditions where the controls are effective. Computational fluid dynamics is shown to be capable of predicting the control-surface influence, even at high speed.
机译：描述了对在无人作战飞机构型上不同后缘控制装置的有效性进行预测的研究，无人战斗机构型在中等至高攻角下会形成复杂的涡流。这些车辆的稳定性和控制要求很高，并且需要及早了解来自控制面挠曲的力和力矩的变化。对于未偏转的控制，将计算结果与马赫数范围为0.146 <= M <= 0.9的风洞测试数据进行比较。然后讨论了在亚音速和跨音速条件下控制的有效性。考虑了网格处理和湍流模型对预测的真实性的影响。对于控制有效的流动条件，计算流体动力学预测显示出与测量的良好一致性，并且对几何处理和湍流模型的敏感性有限。计算流体动力学显示出即使在高速下也能够预测控制面的影响。

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  • 来源
    《Journal of Aircraft》 |2018年第2期|534-548|共15页
  • 作者

    Coppin Joe; Birch Trevor; Kennett David; Hoholis George; Badcock Kenneth;

  • 作者单位

    Def Sci & Technol Lab, Air & Weap Syst Dept, Fareham PO17 6AD, England;

    Def Sci & Technol Lab, Air & Weap Syst Dept, Fareham PO17 6AD, England;

    Univ Liverpool, CFD Lab, Sch Engn, Liverpool L69 3GH, Merseyside, England;

    Univ Liverpool, CFD Lab, Sch Engn, Liverpool L69 3GH, Merseyside, England;

    Univ Liverpool, CFD Lab, Sch Engn, Liverpool L69 3GH, Merseyside, England;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
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