TY - JOUR
T1 - The effect of y-component electroosmotic body force in mixed electroosmotic/pressure driven microflows
AU - Nosrati, Reza
AU - Hadigol, Mohammad
AU - Raisee, Mehrdad
PY - 2010/12/3
Y1 - 2010/12/3
N2 - The present study reports numerical analysis for mixed electroosmotic/pressure driven flow of Newtonian fluid in slit microchannels. Two dimensional Laplace, Poisson-Boltzmann, and momentum equations are solved numerically in a rectangular microchannel using finite volume method and SIMPLE algorithm. Electroosmotic body force is considered in x and y-momentum equations. The effect of considering y-component electroosmotic body force in velocity distribution is investigated. Moreover, the effects of external applied electric field, zeta potential, Debye length, and the channel height on y-velocity distribution are studied. The numerical results show importance of considering y-component electroosmotic body force by reduction of zeta potential and Debye length.
AB - The present study reports numerical analysis for mixed electroosmotic/pressure driven flow of Newtonian fluid in slit microchannels. Two dimensional Laplace, Poisson-Boltzmann, and momentum equations are solved numerically in a rectangular microchannel using finite volume method and SIMPLE algorithm. Electroosmotic body force is considered in x and y-momentum equations. The effect of considering y-component electroosmotic body force in velocity distribution is investigated. Moreover, the effects of external applied electric field, zeta potential, Debye length, and the channel height on y-velocity distribution are studied. The numerical results show importance of considering y-component electroosmotic body force by reduction of zeta potential and Debye length.
KW - Debye length
KW - Electroosmotic flow
KW - Zeta potential
UR - http://www.scopus.com/inward/record.url?scp=78649443062&partnerID=8YFLogxK
U2 - 10.1016/j.colsurfa.2010.10.006
DO - 10.1016/j.colsurfa.2010.10.006
M3 - Article
AN - SCOPUS:78649443062
SN - 0927-7757
VL - 372
SP - 190
EP - 195
JO - Colloids and Surfaces A: Physicochemical and Engineering Aspects
JF - Colloids and Surfaces A: Physicochemical and Engineering Aspects
IS - 1-3
ER -