TY - JOUR
ID - 808
TI - Electroosmotic Pressure-Driven Flow through a Slit Micro-Channel with Electric and Magnetic Transverse Field
JO - Journal of Applied Fluid Mechanics
JA - JAFM
LA - en
SN - 1735-3572
AU - Moradmand, A.
AU - Saghafian, M.
AU - Moghimi Mofrad, B.
AD - Department of Mechanical Engineering, Isfahan University of Technology, Isfahan, Iran
Y1 - 2019
PY - 2019
VL - 12
IS - 3
SP - 961
EP - 969
KW - Electro
KW - Microchannel
KW - osmotic flow
KW - Electro magneto hydro dynamic
KW - Critical hartmann number
KW - Transverse electrical field
DO - 10.29252/jafm.12.03.28816
N2 - In the present study, flow through two-dimensional microchannel under an axial electric field, transverse electric and magnetic fields and with axial pressure gradient has been investigated numerically. Continuity and momentum equations were solved steadily with respect to the non-slip condition by using discrete finite volume method and a numerical code. The results show that in the presence of the axial electric field, applying transverse magnetic field reduces flow velocity. However, when the transverse electric field and axial electric field exist together, applying the transverse magnetic field increases the flow rate to a certain extent and then reduces the flow rate. Hartmann number like this amount of magnetic field is known as critical Hartmann number. Therefore, with the presence of transverse and axial electric fields and transverse magnetic field, the highest possible flow rate is for critical Hartmann number. It was also found that by increasing the pressure gradient within the microchannel, the critical Hartmann number decreases. Moreover, by increasing the transverse electric field, the sensitivity of critical Hartmann number to the pressure gradient decreases and its value tends to a specific number (about 1.5).
UR - https://www.jafmonline.net/article_808.html
L1 - https://www.jafmonline.net/article_808_e237708f03f8d9eea55664c08f4a4d29.pdf
ER -