HSIN-FU HUANGHuang, Kun HaoKun HaoHuangKuo, Ju EnJu EnKuo2021-09-162021-09-162021-08-012158-3226https://scholars.lib.ntu.edu.tw/handle/123456789/583060A set of dimensionless groups along with constraints on their values are formulated to serve as an indication of the parametric combinations, leading to minimal enhancement of streamwise passive species transport in time-periodic electro-osmotic microchannel flows with asymmetric hydrodynamic slip and zeta potential boundaries. While the slip lengths and zeta potentials are mostly treated as uncoupled in the electrokinetic transport literature, we incorporate into the analysis wall surface charge/potential coupled apparent slip lengths and find that more than one minimal enhancement instances may be achieved during a zeta potential sweep, provided that the uncharged surface slip length ratio is large enough.[SDGs]SDG3[SDGs]SDG15journal article10.1063/5.00642622-s2.0-85112293141https://scholars.lib.ntu.edu.tw/handle/123456789/578903