(S008)Solute Concentration Variation with Time near Solid Solid-Liquid Interface iquid during the Modulated Current and Magnetic Field ield Superimposition

摘要

For solid solid-liquid chemical reactions reactions, mass transfer is often the rate determining step. , Impos mposing ing agitation in a bulk liquid has been used to enhance mass transfer rate [1]. As concentration boundary layer exists in the velocity boundary layer, such macroscopic method has limitation to decrease concentration boundary layer thickness thickness. Therefore, a local agitation excited in the vicinity of the solid solid-liquid interface has been pr proposed opposed [2]. In this research, n the concentration boundary layer formed by imposing a modulated current and a static magnetic field simultaneously was thinner than that formed under the superimposition of a DC current and the static magnetic field along the centerline of anode [2]. And the further decrease of the concentration boundary layer thickness by adding modulated current and magnetic field was also observed in the whole solid solid-liquid interface [3] 3].