The plots below show profiles of the mean velocities and Reynolds stresses across the gaps between tubes at the three \(x\) locations, \(x=0\), \(11\) and \(16.5\) mm.

The plots below show profiles of the mean velocities and Reynolds normal stresses across the gaps between tubes at the two \(y\) locations, \(y=0\) and \(22.5\) mm.