Toward tuning flow charecteristics in microchannel by nanotechnology and electrokinetic: Numerical simulation of heterogenous electroosmotic flow

Autor: Morteza Dallakenejad, Seyyed Mostafa Seyyedi, Hamid Hassanzadeh Afrouzi, Fatemeh Salehi, Abbasali Abouei Mehrizi
Jazyk: angličtina
Rok vydání: 2023
Předmět:
Zdroj: Alexandria Engineering Journal, Vol 83, Iss , Pp 66-84 (2023)
Druh dokumentu: article
ISSN: 1110-0168
DOI: 10.1016/j.aej.2023.10.027
Popis: Nanotechnology in recent years helps researcehers to design flow rate and profile in microsized channel via making surface charge heterogenous. This paper numerically simulates the electroosmotic flow inside a microchannel with non-uniform Zeta potential (ZP). The problem is a two-dimensional, incompressible, steady, and laminar channel flow between two parallel plates. The numerical results show that the flow rate changes compared to a constant ZP by ascending, descending, and parabolic modifications of the wall ZP at the mid-length of the microchannel. Results show that flow volume rate increases by microchannel width from 4 mm3/s to 6.5 mm3/s in best condition.
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