Fine Structures of Supersonic Laminar Flow over a Backward Facing Step at Ma=3.0,3.8

  • Chen Zhi
  • Yi Shihe
  • Tian Lifeng
  • He Lin
  • Zhu Yangzhu
Conference paper

Introduction

Supersonic flows over a BFS often occur in the flow field around supersonic aircrafts and inside engines. And it takes an important role in optimizing the aircraft design and stabilizing the engine fire [1]. In the past several decades, there were large numbers of studies on the mechanism of separated and reattaching flows experimentally and numerically. To study flow structures by flow visualization, techniques such as schlieren, shadow and interference were usually adopted. G.X. Shen and G.Y. Ma (1996) used WBIV (White-light Bubble Image Velocimetry) to measure the structures of starting vortices and found 4 stages in this process [2]. Akiko and Masahiko (1998) studied the supersonic flow over BFS with a normal injection using the numerical method and shadow technique and found that fierce reaction between injection and recirculation region was distinct [3].

Keywords

Turbulent Boundary Layer Compression Wave Expansion Wave Recirculation Region Free Shear Layer 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

  1. 1.
    Neumann, J., Wengle, H.: DNS and LES of Passively Controlled Turbulent Backward-Facing Step FlowFlow. Turbulence and Combustion J., 71297–71310 (2003)Google Scholar
  2. 2.
    Shen, G.X., Ma, G.Y.: The investigation on the properties and structures of starting vortex flow past a back-ward facing step by WBIV technique. Experiments in Fluids J. 21, 57–65 (2004)MathSciNetGoogle Scholar
  3. 3.
    Akiko, M., Masahiko, M.: Flow structure of supersonic flow past backward-facing step with perpendicular injector. AIAA-98-0939 (1998)Google Scholar
  4. 4.
    Zhao, Y.X., Yi, S.H., Tian, L.F., et al.: Supersonic flow imaging via nanopaticles. Science in China Series E: Technological Sciences J. 52(12), 3640–3648 (2009)MATHCrossRefGoogle Scholar
  5. 5.
    Zhao, Y.X., Yi, S.H., Tian, L.F., et al.: Density field measurement and approximate reconstruction of supersonic mixing layer. Chinese Science Bulletin J. 55(19), 2004–2009 (2010)CrossRefGoogle Scholar
  6. 6.
    Yi, S.H., He, L., Zhao, Y.X., et al.: A flow control study of a supersonic mixing layer via NPLS. Science in China Series G: Physics, Mechanics and Astronomy J. 52(12), 2001–2006 (2010)CrossRefGoogle Scholar
  7. 7.
    Tian, L.F., Yi, S.H., Zhao, Y.X., et al.: Study of density field measurement based on NPLS technique in supersonic flow. Sci. China Ser. G J. 52(9), 1357–1363 (2009)CrossRefGoogle Scholar
  8. 8.
    He, L., Yi, S., Zhao, Y., Tian, L., Chen, Z.: Visualization of coherent structures in a supersonic flat-plate boundary layer. Chinese Science Bulletin J 56(6), 489–494 (2011)CrossRefGoogle Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 2012

Authors and Affiliations

  • Chen Zhi
    • 1
  • Yi Shihe
    • 1
  • Tian Lifeng
    • 1
  • He Lin
    • 1
  • Zhu Yangzhu
    • 1
  1. 1.College of Aerospace and Material EngineeringNational Univ. of Defense TechnologyChangshaChina

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