Figure 2.26 Long exposure photographs of vortex shedding from a circular 

 cylinder in a linear shear flow; from Peterka, Cermak and Woo (41). Reynolds 

 number Re^ = 20000; shear flow steepness parameter /3 = 032; cylinder as- 

 pect ratio LI D = 20. The photographs were provided by Dr. Jon Peterka, 

 Colorado State University. 



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