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Acta Mechanica Sinica

, Volume 5, Issue 4, pp 376–382 | Cite as

Visualization of flow structures in a turbulent boundary layer using a new technique

  • Shen Gongxin
  • Lian Qixiang
  • Huang Zheng
  • Ma Guangyun
  • Yuan Youming
Article
  • 12 Downloads

Abstract

In this paper, an experimental investigation on the flow structures in a turbulent boundary layer employing a special laser light sheet-Hydrogen bubble flow visualization technique is described. It is observed that the high/low speed streaks are directly related to the hairpin or horseshoe-like vortices. This observation can give a better understanding of the physical mechanism in the turbulent boundary layer.

Key Words

structures of turbulent boundary layer high/low speed streaks interface strings hair-pin or horseshoe-like vortices flow visualization Hydrogen bubble time line laser light sheet 

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Copyright information

© Chinese Society of Theoretical and Applied Mechanics 1989

Authors and Affiliations

  • Shen Gongxin
  • Lian Qixiang
  • Huang Zheng
  • Ma Guangyun
  • Yuan Youming

There are no affiliations available

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