Title :
Wedging leakage flow and its impact on the maximum pressure head of bubble-driven micropumping
Author :
Lemmens, Ryan ; Meng, Dennis Desheng
Author_Institution :
Mech. Eng. - Eng. Mech. Dept., Michigan Technol. Univ., Houghton, MI
Abstract :
This paper reports a previously overlooked mechanism that has a considerable effect to undermine bubble-driven micropumping in a square-shaped microchannel, and therefore limits the maximum achievable pressure head. Improvement of pumping performance by rounding the microchannel is thus proposed.
Keywords :
bubbles; microchannel flow; micropumps; bubble-driven micropumping; square-shaped microchannel; wedging leakage flow; Biomembranes; Chemical analysis; Failure analysis; Fluid flow; Microchannel; Microelectronics; Micropumps; Systems engineering and theory; USA Councils; Valves; Bubble-driven micropumping; Capillaries; Leakage flow; Pressure head;
Conference_Titel :
Nano/Micro Engineered and Molecular Systems, 2009. NEMS 2009. 4th IEEE International Conference on
Conference_Location :
Shenzhen
Print_ISBN :
978-1-4244-4629-2
Electronic_ISBN :
978-1-4244-4630-8
DOI :
10.1109/NEMS.2009.5068747
