===Duct Flows with Smooth and Rough Walls===
==Sample Data Plots==


The plots below show secondary flow vectors across the two ducts. (Making use of symmetries, a 
quarter of the square duct is shown, and half of the rectangular one).

{{figs:case052:cas52-rfig1.png}}

The plots below show contours of mean streamwise velocity and rms streamwise velocity
fluctuations in the two ducts.

{{figs:case052:cas52-rfig2.png}}