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Density field measurement and approximate reconstruction of supersonic mixing layer

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  • Aerodynamics
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Chinese Science Bulletin

Abstract

The density field measurement of supersonic mixing layer based on the nanoparticle-based planar laser scattering method was studied. The calibration of experimental images was analyzed, and the relation between tracer particles concentration and local density of flowfield was calibrated with oblique shockwave experiment. According to the characteristic of mixing layer images, the influence of uneven light intensity distribution was calibrated. With these calibration methods, the density field of supersonic mixing layer with convective Mach number at 0.12 was measured. By analyzing the spanwise vortical structures and streamwise density field, the three dimensional (3D) density field was approximately reconstructed, which apparently reflected the 3D structure of supersonic mixing layer.

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Authors and Affiliations

  1. College of Aerospace and Material Engineering, National University of Defense Technology, Changsha, 410073, China

    YuXin Zhao, ShiHe Yi, LiFeng Tian, Lin He & ZhongYu Cheng

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  1. YuXin Zhao
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  2. ShiHe Yi
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  3. LiFeng Tian
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  4. Lin He
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  5. ZhongYu Cheng
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Correspondence to YuXin Zhao.

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Zhao, Y., Yi, S., Tian, L. et al. Density field measurement and approximate reconstruction of supersonic mixing layer. Chin. Sci. Bull. 55, 2004–2009 (2010). https://doi.org/10.1007/s11434-010-3222-4

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  • DOI: https://doi.org/10.1007/s11434-010-3222-4

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