Effects of the computational domain on the secondary flow in turbulent plane Couette flow
Gai Jiea), Xia Zhen-Hua†a),b), Cai Qing-Dong‡a)
       
(a) Phase diagram of the number of counter-rotating vortex pairs with different streamwise length L x / π and the spanwise width L z / π . The numbers are shown in front of the mapping names. (b) Scatter diagram of the normalized averaged width of each vortex pair λ z /4 as a function of the streamwise length L x / π . The mapping names denote the data resources.