Nanotech 2004 Vol. 1
Nanotech 2004 Vol. 1
Technical Proceedings of the 2004 NSTI Nanotechnology Conference and Trade Show, Volume 1

Micro Fluidics and Nanoscale Transport Chapter 7

Clogging Pressures of Bubbles in Microchannel Contractions: Theory and Experiments

Authors: M.J. Jensen, X. Wang, D. Attinger and H. Bruus

Affilation: Mikroelektronik Centret, DTU, Denmark

Pages: 267 - 270

Keywords: microchannel, contraction, bubble, clogging

Abstract:
We present a theoretical, numerical, and experimental study of bubbles passing through a microchannel contraction. A certain pressure, the so-called clogging pressure, is needed to push a bubble through a microchannel contraction. We present the first experimental results on such systems and compare them to results from a theoretical model first presented at NanoTech 2003 (M. J. Jensen et al., Proc. vol. 1, p. 258-261). The experiments and theory are seen to be in quite good agreement and we give possible explanations for some of the discrepancies.

Clogging Pressures of Bubbles in Microchannel Contractions: Theory and Experiments

ISBN: 0-9728422-7-6
Pages: 521
Hardcopy: $79.95