Title :
Experimental and numerical studies on micro-droplet movement driven by Marangoni effect
Author :
Yuan-Tai Tseng ; Fan-Gang Tseng ; Ching-Chang Chieng
Author_Institution :
Dept. of Eng. & Syst. Sci., Nat. Tsing Hua Univ., Hsinchu, Taiwan
Abstract :
This work is a fundamental study on the movement of various sized micro-liter droplets on a surface subjected to temperature gradients by high speed CCD camera and numerical predictions based on first principle equations. The study indicates that the differences and the change of dynamic receding/advancing contact angles and temperature gradients across the droplets are the key parameters determining the moving behavior.
Keywords :
ab initio calculations; contact angle; convection; drops; flow simulation; microfluidics; oils; silicones; surface tension; MEMS; Marangoni effect; contact angles; dynamic receding; first principle equations; microdroplet movement; microliter droplets; temperature gradients; Cameras; Equations; Force control; Numerical simulation; Physics; Shape; Solids; Surface tension; Systems engineering and theory; Temperature distribution;
Conference_Titel :
TRANSDUCERS, Solid-State Sensors, Actuators and Microsystems, 12th International Conference on, 2003
Conference_Location :
Boston, MA, USA
Print_ISBN :
0-7803-7731-1
DOI :
10.1109/SENSOR.2003.1217157