Several recent papers have been devoted to numerical analysis of mass transfer from rectangular microband or circular microdisk electrodes placed in a parabolic channel flow. The numerical calculations typically show good agreement with experimental results. Frequently, the geometry and flow conditions are such that all the mass transfer occurs in a thin layer adjacent to the electrode, and such confinement simplifies the characterization of the transport to the problem of mass transfer in a shear flow. Analytical formulas are available for strip-shaped and disk-shaped geometries for both low and high Péclet numbers (the dimensionless wall shear rate) and are shown here to be in good agreement with the published experimental electrochemical results.
All Science Journal Classification (ASJC) codes
- Physical and Theoretical Chemistry