Title :
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
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;
Conference_Titel :
Industry Applications Conference, 1997. Thirty-Second IAS Annual Meeting, IAS '97., Conference Record of the 1997 IEEE
Conference_Location :
New Orleans, LA
Print_ISBN :
0-7803-4067-1
DOI :
10.1109/IAS.1997.626293
