Chinese Science Bulletin

, Volume 55, Issue 19, pp 2004–2009

Density field measurement and approximate reconstruction of supersonic mixing layer

  • YuXin Zhao
  • ShiHe Yi
  • LiFeng Tian
  • Lin He
  • ZhongYu Cheng
Articles Aerodynamics

DOI: 10.1007/s11434-010-3222-4

Cite this article as:
Zhao, Y., Yi, S., Tian, L. et al. Chin. Sci. Bull. (2010) 55: 2004. doi:10.1007/s11434-010-3222-4

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.

Keywords

supersonic mixing layerdensity field measurementnanoparticles scattering

Copyright information

© Science China Press and Springer-Verlag Berlin Heidelberg 2010

Authors and Affiliations

  • YuXin Zhao
    • 1
  • ShiHe Yi
    • 1
  • LiFeng Tian
    • 1
  • Lin He
    • 1
  • ZhongYu Cheng
    • 1
  1. 1.College of Aerospace and Material EngineeringNational University of Defense TechnologyChangshaChina