(Click on the image for a larger version) Contours of spanwise vorticity (centerplane) and streamwise vorticity (foreground) illustrate the structure of the hairpin vortices.

Source URL: http://www-unix.mcs.anl.gov/~fischer/pics/pics.html

Flow past a Flat Plate-Hemisphere Juncture

This image and the others on the above Web page illustrate the interaction of a flat plate boundary layer with a hemispherical protuberance. The Reynolds number based upon hemisphere radius is Re=600, and the boundary layer thickness is approximately equal to the radius. These results were computed using 512 elements of order 16 (2.1 M points) on the 512-node Intel Delta at Caltech.