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ACTA AERONAUTICAET ASTRONAUTICA SINICA ›› 2006, Vol. 27 ›› Issue (4): 574-578.

• 论文 • Previous Articles     Next Articles

Detection Method of Boundary-Layer Separation Point Based on Micro Pressure Sensor Array

CHEN Shuang, MA Bing-he, YUAN Wei-zheng, JIANG Cheng-yu   

  1. Micro and Nano Electromechanical Systems Laboratory, Northwestern Polytechnical University, Xi'an 710072, China
  • Received:2005-01-18 Revised:2005-07-28 Online:2006-08-25 Published:2006-08-25

Abstract: In order to detect the point of boundary layer separation, a measuring method based on the change of surface pressure distribution is discussed, and a design of flexible substrate based micro pressure sensor array is also proposed. This array can achieve real-time online measuring while meeting the measuring requirement of non-planar surface. The paper studies a determination method used to detect separation point and proves its validity through a flow simulation of 2D column. The introduction of micro pressure sensor array expands ways detecting boundary layer separation point.

Key words: boundary layer, separation point, surface pressure distribution, micro pressure sensor array, flexible substrate, real-time online measuring

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