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MICROMIXING STUDIES IN LOW-FREQUENCY ROTATING MAGNETIC FIELD PROBED VIA VILLERMAUX-DUSHMAN REACTION

Micromixing has been the subject of numerous research efforts in the context of chemical reaction engineering to elucidate the impact of mixing on the conversion and selectivity of chemical reactions. In this contribution, we present the first report on micromixing based on magnetic field assisted mixing of paramagnetic fluids with a magnetic nanofluid. We also present a new class of mixing tools with a mechanism based on nanostirring of non-interacting uniformly dispersed magnetic nanoparticles (MNPs) in a carrier fluid subject to an external rotating magnetic field (RMF). Mixing and micromixing features are investigated using the Villermaux-Dushman reaction probe. Experiments are conducted in a T-type microfluidic device and conventional magnetic fields to investigate mixing and micromixing features. Experimental results reveal superior impact of RMF in both mixing and micromixing features in comparison to static (SMF) and low-frequency oscillating (OMF) magnetic fields.