Behavior of Ultrafine Particles in Electro-Hydrodynamic Flow Induced by Corona Discharge.

ABSTRACT: Ultrafine particle behavior in electro-hydrodynamic (EHD) flow induced by corona discharge is studied experimentally and numerically. The EHD flow serves as a primary particle aspiration/sampling mechanism, the collector does not require any additional flow generation. Multiphysics numerical model couples the ion transport equation and the Navier-Stokes equations (NSE) to solve for the spatiotemporal distribution of electric field, charge density, and flow field, the results are compared with experimental velocity profiles at the exit. The computed velocity and flow rate data are in good agreement with the experimental data; the maximum velocity is located at the axis and ranges from 1 m/s to 4 m/s as a function of corona voltage. Experimentally evaluated particle transmission trends for a

SUBMITTER: Vaddi RS 

PROVIDER: S-EPMC7377583 | biostudies-literature | 2020 Oct

REPOSITORIES: biostudies-literature