Title :
Viscous flow model for charged particle trajectories around a single square fiber in an electric field
Author :
Adamiak, Kazimierz
Author_Institution :
Dept. of Electr. Eng., Univ. of Western Ontario, London, Ont., Canada
Abstract :
The trajectories and deposition efficiency of aerosol particles on a single rectangular fiber 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 fiber 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; drag; electric charge; electric fields; electrohydrodynamics; finite element analysis; laminar flow; viscosity; vortices; Coulomb numbers; Navier-Stokes equation; Reynolds numbers; Stokes numbers; aerosol particles; air drag force; air flow; air-flow distribution; charged particle trajectories; conductive infinitely long fiber; deposition efficiency; electric field; electrical forces; electrically charged particles; external electric field; finite-element method; inertial force; laminar flow; particle trajectories; single rectangular fiber; single square fiber; viscous flow model; vorticity-stream function approximation; Aerosols; Dielectrophoresis; Electrostatics; Filters; Finite element methods; Function approximation; Industry Applications Society; Laplace equations; Numerical simulation; Optical fiber devices;
Journal_Title :
Industry Applications, IEEE Transactions on
