Viscous flow model for particle trajectories and deposition efficiency on a single rectangular fibre in an electric field

Author

Adamiak, Kazimierz

Author_Institution

Dept. of Electr. Eng., Univ. of Western Ontario, London, Ont., Canada

Volume

3

fYear

1997

fDate

5-9 Oct 1997

Firstpage

1764

Abstract

The trajectories and deposition efficiency of aerosol particles on a single rectangular fibre are studied in this paper. It is assumed that the particles are electrically charged and an external electric field is applied. A conductive, infinitely long fibre can be rotated by some angle with respect to the air flow. A single aerosol particle moves under the influence of the inertial, air drag and electrical forces. The air flow distribution is determined by solving the Navier-Stokes equation assuming laminar flow. The vorticity-stream function approximation is used and solved by means of the finite element method. Results of numerical simulation for the particle trajectories and deposition efficiency are shown for different Reynolds, Stokes and Coulomb numbers

Keywords

Navier-Stokes equations; aerosols; electrohydrodynamics; electrostatics; fibres; finite element analysis; laminar flow; spray coating techniques; viscosity; Coulomb number; Navier-Stokes equation; Reynolds number; Stokes number; aerosol particles; air drag forces; air flow distribution; deposition efficiency; electrical charging; electrical forces; external electric field; finite element method; inertial forces; laminar flow; numerical simulation; particle trajectories; single rectangular fibre; viscous flow model; vorticity-stream function approximation; Aerosols; Air cleaners; Electrostatic precipitators; Filters; Finite element methods; Function approximation; History; Navier-Stokes equations; Numerical simulation; Optical fiber devices;

fLanguage

English

Publisher

ieee

Conference_Titel

Industry Applications Conference, 1997. Thirty-Second IAS Annual Meeting, IAS '97., Conference Record of the 1997 IEEE

Conference_Location

New Orleans, LA

ISSN

0197-2618

Print_ISBN

0-7803-4067-1

Type

conf

DOI

10.1109/IAS.1997.626293

Filename

626293