TY - JOUR
T1 - Developing pressure-driven liquid flow in microchannels under the electrokinetic effect
AU - Chen, X. Y.
AU - Toh, K. C.
AU - Chai, J. C.
AU - Yang, C.
PY - 2004/3
Y1 - 2004/3
N2 - A mathematical model is developed to study the electrokinetic effect on liquid developing flow in a parallel slit including the general Nernst-Planck equation describing anion and cation distributions, the Poisson equation determining the electrical potential profile, and the modified Navier-Stokes equation governing the velocity flow field. Since these three equations are coupled, a numerical scheme based on the finite volume method is utilized to iteratively solve the proposed model. A new expression for the streaming potential in the case of the developing flow status is derived. The characteristics of the pressure-driven flow in the presence of the electrokinetic effect are examined.
AB - A mathematical model is developed to study the electrokinetic effect on liquid developing flow in a parallel slit including the general Nernst-Planck equation describing anion and cation distributions, the Poisson equation determining the electrical potential profile, and the modified Navier-Stokes equation governing the velocity flow field. Since these three equations are coupled, a numerical scheme based on the finite volume method is utilized to iteratively solve the proposed model. A new expression for the streaming potential in the case of the developing flow status is derived. The characteristics of the pressure-driven flow in the presence of the electrokinetic effect are examined.
KW - Boltzmann distribution
KW - Developing microchannel flow
KW - Developing streaming potential
KW - Electrokinetic (electroviscous) effect
KW - The Nernst-Planck equation
UR - http://www.scopus.com/inward/record.url?scp=0347355144&partnerID=8YFLogxK
U2 - 10.1016/j.ijengsci.2003.07.008
DO - 10.1016/j.ijengsci.2003.07.008
M3 - Article
AN - SCOPUS:0347355144
VL - 42
SP - 609
EP - 622
JO - International Journal of Engineering Science
JF - International Journal of Engineering Science
SN - 0020-7225
IS - 5-6
ER -