of these example pictures for the animation
This is a composite video clip showing where in
the pipe the tube slices are being shown. This video shows the
velocity vectors as the fluid proceeds from the beginning of the
pipe to the end. Notice the swirl at the end of the pipe!
Make sure you have a program installed to watch movies.
These are .avi files. Quick Time Player and Windows Media
Player work fine. You can freeze the movie at any time to take
time and analyze the velocity vectors and the resulting flow