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Flow visualization of Hairpin vortices in a Mach 3.0 flat-plate boundary layer

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An experimental study has been performed to visualize the coherent structures in a Mach 3 flat-plate boundary layer using the Nano-tracer planar laser scattering technique. The hairpin vortices are identified from the instantaneous structure in the streamwise-wall-normal plane, based on the induced motion of a hairpin model.

Author(s):

Lin He    
College of Aerospace Science and Engineering, National University of Defense Technology
China

Shihe Yi    
College of Aerospace Science and Engineering, National University of Defense Technology
China

Zhi Chen    
College of Aerospace Science and Engineering, National University of Defense Technology
China

Yangzhu Zhu    
College of Aerospace Science and Engineering, National University of Defense Technology
China