Comparison of nanoparticles deposition in turbulent flows using electrophoresis and two different charging mechanisms Available to Purchase

The use of electrical charge to control particle behavior has applications ranging from electrostatic precipitation for pollution control to nano-materials preparation. Several studies have shown the predominance of such mechanism in nanoparticles deposition for sufficient external electric field strength. This predominance depends also on number of charges carried by the nanoparticles which is itself influenced by the process of their formation. In this paper, the use of a Lagrangian approach in combination of two models of particles charging, i.e. the Boltzmann and the diffusion-filed charging processes are studied and their influence on nanoparticles deposition in turbulent flows is assessed. It is shown that, depending on the electric field strength and number of charges carried by the particles, the electrophoresis could become the predominant deposition mechanism for particle size ranging between 30 nm and 5 μm.