Micro-PTV technique application to velocity field measurements in immiscible liquid-liquid plug flow in microchannels

Abstract

The present paper presents the results of micro-PTV technique application to velocity fields measurements in plug flow of immiscible liquids in T-shaped straight and curved microchannels. The data processing algorithms are described; the procedure for velocity circulation assessment was proposed and applied to measure velocity circulation in aqueous plugs at different flow rates. The comparison with micro-PIV technique application results is performed.