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Study on shock wave-vortex ring interaction by the micro vortex generator controlled ramp flow with turbulent inflow

机译:带有湍流的微涡发生器控制的斜流对激波-涡环相互作用的研究

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摘要

In this study, we will investigate the interaction between the vortex rings and oblique shocks generated by the micro vortex generator's (MVG) controlled ramp flow at M = 2.5 and Re_θ = 5760. An implicit large eddy simulation method is used by solving the unfiltered form of the Navier-Stokes equations with the 5th order bandwidth-optimized WENO scheme. It shows that the vortex ring structure generated by MVG is very stable, it does not break down and it keeps its original topology after penetrating the strong shock wave. However, the oblique shocks are broken when they interact with vortex rings. The bump on the 3D shock wave surface is observed and its mechanism is explained. The separation zone, which is originally generated by the shock-boundary layer interaction, is significantly reduced due to the vortex ring-shock interaction.
机译:在这项研究中,我们将研究涡旋环与微涡旋发生器(MVG)控制的斜流在M = 2.5和Re_θ= 5760处产生的斜向冲击之间的相互作用。通过求解未滤波形式,使用了隐式大涡模拟方法。五阶带宽优化的WENO方案的Navier-Stokes方程组。结果表明,MVG产生的涡环结构非常稳定,不会破裂,并且在穿透强冲击波后仍保持其原始拓扑。但是,倾斜冲击在与涡流环相互作用时会破裂。观察3D冲击波表面上的凸起,并说明其机理。最初由激波边界层相互作用产生的分离带由于涡环-激波相互作用而显着减小。

著录项

  • 来源
    《Aerospace science and technology》 |2013年第1期|226-231|共6页
  • 作者单位

    University of Texas at Arlington, Arlington, TX 76019, USA,Department of Mathematics, Box 1940S, Univ. of Texas at Arlington, USA;

    University of Texas at Arlington, Arlington, TX 76019, USA,Department of Mathematics, Box 1940S, Univ. of Texas at Arlington, USA;

    University of Texas at Arlington, Arlington, TX 76019, USA,Department of Mathematics, Box 1940S, Univ. of Texas at Arlington, USA;

    University of Texas at Arlington, Arlington, TX 76019, USA,Department of Mathematics, Box 1940S, Univ. of Texas at Arlington, USA;

  • 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
  • 中图分类
  • 关键词

    Shock; Vortex ring; MVG; Turbulence;

    机译:休克;涡环MVG;湍流;

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