this is video of intermittent turbulence on a flat
plate, from Schneider's PhD thesis work, 12 and 14 Sept. 1988
Some audio.  Copied from a DVD which was made from a VHS tape.

See Physics of Fluids v. 6 March 1994 pp. 1191-1203.
Dye emitted near leading edge of plate in water.

Feb. 2021, Robert Decker from the USAFA kindly converted
the old-style .VOB format to .mp4.  Original filename
was VTS_01_2.VOB.