Liquid-gas flow patterns in a narrow electrochemical channel
2011 (English)In: Chemical Engineering Science, ISSN 0009-2509, E-ISSN 1873-4405, Vol. 66, no 10, 2252-2260 p.Article in journal (Refereed) Published
The flow in a narrow (3 mm wide) vertical gap of an electrochemical cell with gas evolution at one electrode is modeled by means of the two-phase Euler-Euler model. The results indicate that at certain conditions an unsteady type of flow with vortices and recirculation regions can occur. Such flow pattern has been observed experimentally, but not reported in previous modeling studies. Further analysis establishes that the presence of a sufficient amount of small (similar to 10 mu m) bubbles is the main factor causing this type of flow at high current densities.
Place, publisher, year, edition, pages
2011. Vol. 66, no 10, 2252-2260 p.
Bubble, Electrochemistry, Fluid mechanics, Laminar flow, Mathematical modeling, Multiphase flow
IdentifiersURN: urn:nbn:se:kth:diva-39189DOI: 10.1016/j.ces.2011.02.046ISI: 000288937500023ScopusID: 2-s2.0-79953052811OAI: oai:DiVA.org:kth-39189DiVA: diva2:439515