TY - GEN
T1 - Hydrodynamic dispersion due to a magnetohydrodynamic-electroosmotic driven flow through a microchannel
AU - Vargas, Carlos
AU - Bautista, Oscar
N1 - Publisher Copyright:
© Avestia Publishing, 2016.
PY - 2017
Y1 - 2017
N2 - In a parallel-flat plate microchannel, with nonuniform zeta potential of the wall, we analyse the dispersion of a passive solute under the simultaneous influence of electroosmotic (EOF), and magnetohydrodynamic (MHD) forces. The hydrodynamic of the flow was solved using the lubrication approximation theory (LAT) and we assume a Newtonian fluid. The solution of the electrical potential is based on the Debye-Hu¨ckel approximation for a weak potential of a symmetric (z: z) electrolyte solution. It is shown that the interaction between the non-uniform wall zeta potential induces a pressure gradient so as to satisfy the continuity of flow, generating a no plug like velocity profiles that contribute directly to dispersion. It is also shown that with the adding of the MHD the velocity flow increase two times its value, and the dispersion may increase more than four times as compared against the case of a purely electroosmotic forces.
AB - In a parallel-flat plate microchannel, with nonuniform zeta potential of the wall, we analyse the dispersion of a passive solute under the simultaneous influence of electroosmotic (EOF), and magnetohydrodynamic (MHD) forces. The hydrodynamic of the flow was solved using the lubrication approximation theory (LAT) and we assume a Newtonian fluid. The solution of the electrical potential is based on the Debye-Hu¨ckel approximation for a weak potential of a symmetric (z: z) electrolyte solution. It is shown that the interaction between the non-uniform wall zeta potential induces a pressure gradient so as to satisfy the continuity of flow, generating a no plug like velocity profiles that contribute directly to dispersion. It is also shown that with the adding of the MHD the velocity flow increase two times its value, and the dispersion may increase more than four times as compared against the case of a purely electroosmotic forces.
UR - http://www.scopus.com/inward/record.url?scp=85045005505&partnerID=8YFLogxK
U2 - 10.11159/htff17.127
DO - 10.11159/htff17.127
M3 - Contribución a la conferencia
AN - SCOPUS:85045005505
SN - 9781927877326
T3 - Proceedings of the World Congress on Mechanical, Chemical, and Material Engineering
BT - Proceedings of the 3nd World Congress on Mechanical, Chemical, and Material Engineering, MCM 2017
PB - Avestia Publishing
T2 - Proceedings of the 3nd World Congress on Mechanical, Chemical, and Material Engineering, MCM 2017
Y2 - 8 June 2017 through 10 June 2017
ER -