|
DISPERSION
CHARACTEISTICS OF PASSIVE
ANALYTES
IN A MICROFLUIDIC SLIT
ZHAO Zhiwen1 CHEN Xing2
LAM Y C2
(1.
Department of Electronics, Beijing Normal University, Beijing 100875;
2.
Singapore-MIT Alliance, School of Mechanical & Aerospace Engineering,
Nanyang Technological University, Singapore 639798)
|
|
Abstract: Comparing
with the fluid flow driven by electric field, fluid flow driven by
pressure gradient is with simplicity and flexibility for actual
applications. However, in the fluid flow driven by pressure gradient,
the fluidic characteristic of analytes becomes more complex. Hereby, in
this study, basing on the analysis and study of the fluidic
characteristic of analytes, as well as the fluidic features of two
miscible fluids of similar properties along a narrow rectangular shape
slit within a Y-shape microfluidic device, the convection and diffusion
transport in a pressure driven creeping flow is investigated, in the
meantime, a two-dimensional analytical model is proposed and its
corresponding analytical solution is obtained resorting to the average
analysis.
Key words: Transport
Microfluidic Pressure-driven flow Taylor-Aris dispersion
CLC No: O354.9
新加坡-MIT联盟资助项目. Received 20050310,
received in revised form 20050718
|