Pumping Effect Measured by PIV Method in a Multilayer Spike Electrode EHD Device for Air Cleaning

Dust particles can be harmful for human health when inhaled. Particularly dangerous are submicrometer dust particles, which can contain traces of toxic elements and can easily penetrate into the human respiratory system. Thus, efficient devices for the air cleaning from submicrometer dust particles are needed. Recently, Katatani and Mizuno have proposed an electrohydrodynamic (EHD) device for air cleaning for submicrometer particles. In this paper, we present the flow velocity field patterns in an EHD device for air cleaning, which is similar to that of Katatani and Mizuno. The presented EHD device had a set of the stressed plate electrodes with spike tips and the grounded electrodes also in the form of plates. The parametric studies of the flow velocity patterns in such an EHD device using particle image velocimetry were made by us for a different electrode arrangement.