Modelling of near corona wire electrohydrodynamic flow in a wire-plate electrostatic precipitator

• Published in: CEIDP '05. 2005 Annual Report Conference on Electrical Insulation and Dielectric Phenomena, 2005 pp. 478 - 481
• Main Authors: Chun, Y.N., Berezin, A.A., Brocilo, D., Mizeraczyk, J., Chang, J.-S.
• Format: Conference Proceeding
• Language: English
• Published: IEEE 2005
• Subjects: Computational fluid dynamics; Corona; Electrodes; Electrohydrodynamics; Electrostatic precipitators; Fluid flow; Numerical simulation; Physics; Poisson equations; Wire
• ISBN: 9780780392571; 0780392574
• ISSN: 0084-9162; 2576-2397
• DOI: 10.1109/CEIDP.2005.1560724

The modelling of the flow velocity fields for near corona wire electrohydrodynamic (EHD) flow was performed. The steady, two-dimensional Navier-Stokes equations have been computed for a wire-to-plate type electrostatic precipitator (ESP). The numerical simulation used Phoenics (Version 3.5.1) CFD code coupled with Poisson's and ion transport equations, and electric body force in momentum equation which were developed in this study. The Chen-Kim modified k-/spl epsiv/ turbulent model was used to obtain a quantitative image of the resulting mean flow field and the downstream wake flow of rear wire for EHD flow. The flow velocity field pattern showed a strong EHD secondary flow clearly visible in the downstream regions of the corona wire in spite of low Reynolds number for the electrode (Re/sub cw/=12.4). The secondary flow vortices are caused by the EHD also when discharge current is increased.