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IMAGING OF MICRO-RAMPS IN SUPERSONIC FLOW AND THE EFFECT ON FLOW OVER DOUBLE WEDGE

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Visualization of micro-ramps in supersonic flow and flow over a double ramp is performed using nano-tracer planar laser scattering (NPLS) technique in a Mach 3.0 low noise wind tunnel. Firstly, the wake flow features of Ashill micro-ramps are presented. Then, imaging of supersonic the double wedge is obtained and the coherent structures are investigated. Lastly, the effect of micro- ramps on supersonic flow over the double wedge is studied.

Author(s):

Zhang Qinghu    
National University of Defense Technology of China
China

Yi Shihe    
National University of Defense Technology of China
China

He Lin    
National University of Defense Technology of China
China

Chen Zhi    
National University of Defense Technology of China
China

Zhu Yangzhu    
National University of Defense Technology of China
China