The Reynolds experiment : Watch the streamline traced by the ink when the flow is laminar (at about 1 min 20 sec of video), or turbulent (at 2 min 15 secs of the video).
The following movies show the unsteady velocity of the turbulent flow-field close to the bottom wall of UT/CAEE's flume, as measured (every 1/300 of a sec) with our PIV system (see the
Turbulence Lab Description
for details on the setup and flow conditions, and for some comparisons with predictions):
Turbulent flow velocity profiles next to flat wall
25th and 26th classes (May 5 & 7): Reading assignment: Ch. 8 (Dimensional Analysis and Similitude)
The
Navier-Stokes equations (the differential form of the momentum equation and the continuity equation, the integral forms of which we covered in class)