易仕和, 刘小林, 陆小革, 牛海波, 徐席旺. NPLS技术在高超声速边界层转捩研究中的应用[J]. 空气动力学学报, 2020, 38(2): 348-354. DOI: 10.7638/kqdlxxb-2020.0044
引用本文: 易仕和, 刘小林, 陆小革, 牛海波, 徐席旺. NPLS技术在高超声速边界层转捩研究中的应用[J]. 空气动力学学报, 2020, 38(2): 348-354. DOI: 10.7638/kqdlxxb-2020.0044
YI Shihe, LIU Xiaolin, LU Xiaoge, NIU Haibo, XU Xiwang. Application of NPLS technique in the researches on hypersonic boundary layer transition[J]. ACTA AERODYNAMICA SINICA, 2020, 38(2): 348-354. DOI: 10.7638/kqdlxxb-2020.0044
Citation: YI Shihe, LIU Xiaolin, LU Xiaoge, NIU Haibo, XU Xiwang. Application of NPLS technique in the researches on hypersonic boundary layer transition[J]. ACTA AERODYNAMICA SINICA, 2020, 38(2): 348-354. DOI: 10.7638/kqdlxxb-2020.0044

NPLS技术在高超声速边界层转捩研究中的应用

Application of NPLS technique in the researches on hypersonic boundary layer transition

  • 摘要: 基于纳米粒子示踪平面激光散射技术(Nano-tracer-based Planar Laser Scattering,NPLS)是作者自主研发的一种流动显示与精细测量技术。在超声速条件下,NPLS技术具有很高的时空分辨率和信噪比,已经成功应用于超声速复杂流动现象的精细测量,包括超声速混合层、超声速平板边界层、超声速压缩拐角、激波边界层干扰等。近年来,该技术被进一步应用到高超声速边界层转捩研究中。本文主要介绍了NPLS技术在高超声速静音风洞喷管边界层流态测量、高超声速圆锥边界层转捩以及三角翼边界层转捩等研究中的应用。高超声速条件下NPLS研究结果与高频传感器、温敏漆等测试技术得到的结论一致性较好,表明NPLS技术在高超声速边界层转捩研究中具有良好的应用前景。

     

    Abstract: Nano-tracer-based Planar Laser Scattering (NPLS) is a flow visualization technique developed by the authors. The NPLS technique is characterized with high spatial-temporal resolution and high signal-to-noise ratio under supersonic conditions. Flow visualization researches on complex flow phenomena such as the supersonic mixing layer, the supersonic flat boundary layer, the supersonic flow over compression-corner and the shock wave/boundary layer interaction have been carried out based on the NPLS. In recent years, the NPLS has been further applied to hypersonic boundary layer transition research. This paper mainly introduces the application of the NPLS technique in the visualization of boundary layer in the nozzle of hypersonic quiet wind tunnel, hypersonic conical boundary layer transition and delta wing boundary layer transition. The NPLS results under hypersonic conditions are in good agreement with the results obtained by high frequency sensors and temperature sensitive paint. This agreement indicates that the NPLS technique has a good application prospect in hypersonic boundary layer transition research.

     

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