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Chinese Physics, 2003, Vol. 12(12): 1429-1434    DOI: 10.1088/1009-1963/12/12/016
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Breakdown of the chain of ring vortices in a transitional boundary layer

Li Cun-Biao (李存标)
State Key Laboratory for Turbulence Research and Complex System, Peking University, Beijing 100871, China
Abstract  A large number of experiments have been devoted to the study of the generation and development of the high-frequency structures, i.e. the chain of ring-like vortices and breakdown of the chain of ring-like vortices, to the investigation of their relevance to laminar-turbulent transition in a boundary layer flow; however, the origins of turbulence via the process of flow randomization are still not well understood. For this reason a detailed experiment was performed to document the important shape and configuration of the late-stage transitional structures and to investigate some of the still insufficiently understood mechanisms of flow randomization.
Keywords:  chain of ring vortices      transition      flow instability  
Received:  11 April 2003      Revised:  18 May 2003      Accepted manuscript online: 
PACS:  47.27.nb (Boundary layer turbulence ?)  
  47.20.-k (Flow instabilities)  
  47.32.Cc  
  47.52.+j (Chaos in fluid dynamics)  
Fund: Project supported by the National Natural Science Foundation of China (Grant No 19972034).

Cite this article: 

Li Cun-Biao (李存标) Breakdown of the chain of ring vortices in a transitional boundary layer 2003 Chinese Physics 12 1429

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