Nanotech 2005 Vol. 1
Nanotech 2005 Vol. 1
Technical Proceedings of the 2005 NSTI Nanotechnology Conference and Trade Show, Volume 1

Microfluidics and Lab on Chip Chapter 11

Modeling, Analysis and Design of Centrifugal Force Driven Transient Filling Flow into Rectangular Microchannel

Authors: D.S. Kim and T.H. Kwon

Affilation: Pohang University of Science and Technology, Korea

Pages: 704 - 707

Keywords: transient flow, centrifugal force, rectangular microchannel, microfluidics

Abstract:
In this paper, we first present successful modeling and analysis results of a centrifugal force driven transient filling flow into a rectangular microchannel. Two types of exact and pseudo-static approximate solutions were derived for the transient filling flow. The analytic solutions include expressions for flow front advancement, detailed velocity profile and pressure distribution. The obtained analytical results show that the filling flow driven by centrifugal force is affected by three dimensionless parameters which combine fluid properties, rectangular channel geometry and processing condition of rotational speed. We also first provide a simple analytical design tool for a rectangular microchannel based on the modeling and analysis in this study.

Modeling, Analysis and Design of Centrifugal Force Driven Transient Filling Flow into Rectangular Microchannel

ISBN: 0-9767985-0-6
Pages: 844
Hardcopy: $109.95