Making a current
speed difference |
(a)
|
(b) |
(c) |
Once the velocity difference exceeds the critical
value, the boundary layer becomes unstable and the two fluids mix. |
Experimental conditions
Density difference:(a,b) 0.05g/cm3 ; (c) 0.025g/cm3 respectively.
The photos in (a) were taken at 0.2 second intervals, starting a few seconds after the tank was tipped.Photographic conditions
f=50mm, F2, 1/1000 sec, ASA100, a motor drive was used.
Filming conditions
Real time recordings.
240x180: 15 fps, 320x240: 30 fps.