Journal of Theoretical
and Applied Mechanics

45, 3, pp. 489-503, Warsaw 2007

PIV analysis of turbulent flow in a micro-channel

Sławomir Błoński, Tomasz A. Kowalewski
Turbulent flow of water in a short 0.4 mm high micro-channel of an emulsifier is investigated experimentally using a micro-PIV technique and compared with numerical predictions. The micro-flow measurements are based on epi-fluorescence illumination and high-speed imaging. Velocity fields obtained from the measurements and direct numerical simulations indicate that flow turbulization is delayed and develops only at the outlet region of the micro-channel.
Keywords: micro-channel; micro-PIV; turbulence