Pumping effect measured by PIV method in multi-layer spike electrode EHD device for air cleaning

摘要

Dust particles can be harmful for human health when inhaled. Especially dangerous are submicron dust particles, which can contain traces of toxic elements and can easily penetrate into human respiratory system. Thus, new devices for air cleaning are needed. In this work the flow velocity field patterns measured by Particle Image Velocimetry (PIV) method in an electrohydrodynamic (EHD) device for air cleaning are presented. The EHD device had stressed electrodes with spike tips and grounded plates, and was similarly to those proposed by A. Katatani and A. Mizuno [J. Inst. Electrostat. Jpn., 34, 4 (2010)]. The parametric study of the flow velocity patterns was made for a different electrode arrangements.