串聯與並聯型蠕動式微幫浦三維流場模擬

Three-Dimensional Flow Simulation of Peristaltic Micropumps with Chambers in Series and Parallel Arrangement

龔鼎琮(Ding-Cong Gong) ； 潘大知(Dartzi Pan)

《航空太空及民航學刊.系列B》 42卷2期 (2010/10) Pp. 121-128

https://doi.org/10.6124/JAAA.201010_42(2).07

摘要

本文以計算流體力學?工具模擬蠕動式微幫浦之操作。蠕動式微幫浦具三個以上的振動腔，以腔內薄膜的振動來驅動管道內流體的流動，並以各腔振動模式的差異來控制流體行進的方向。本文利用三個以上振動腔構成串聯或並聯型蠕動式幫浦，並研讀在不同構型下，薄膜振動的相位差對幫浦流量的影響。結果顯示，在振動頻率1 Hz時，三個振動腔串聯可產生最大流量的振動相位差約?66°，且隨著振動腔數目增加及幫浦構型的不同時，最大流量相位差也不同。在不同構型中，並聯型蠕動式微幫浦的幫浦體積流量和工作效率皆大於串聯型的蠕動式幫浦。

關鍵字

蠕動式微幫浦 ； 相位差 ； 串聯 ； 並聯 ； 三維流場模擬

並列摘要

Numerical simulations are performed to study the unsteady flowfields in peristaltic micropumps. A peristaltic micropump consists of three or more pumping chambers in which an oscillating membrane is used to drive the microfluid flow. The direction of the net pump flow is mainly controlled by the phase differences of the membrane oscillations in different chambers. In the work, the effects of phase differences on the pump flow rate are studied in detail. For a micropump with three pumping chambers in series arrangement and with a working frequency of 1 Hz, the maximum flow rate occurred at a phase difference of roughly 66°. For a micropump with more than three pumping chambers, the maximum flow rate depends on the phase differences and the chamber configurations. In general, peristaltic micropumps with chambers in parallel arrangement have higher pump flow rate and pumping efficiency than those with chambers in series arrangement.

並列關鍵字

Peristaltic micropump ； Phase difference ； Series arrangement ； Parallel arrangement ； Numerical Simulation