CFD modelling of electrohydrodynamic gas flow in an electrostatic precipitator
by Seong Cheon Kim, Young Nam Chun
International Journal of Environment and Pollution (IJEP), Vol. 36, No. 4, 2009

Abstract: Modelling of the flow velocity fields for electrohydrodynamic flow in a wire-to-plate type electrostatic precipitator was achieved. From calculations for the flow employing different flow models, the Chen-Kim k − ε turbulent model appeared to be the most appropriate choice to obtain a quantitative image of the resulting mean flow field and downstream wake flow of the rear wire, although this was obtained from a qualitative analysis owing to the lack of experimental verification. The flow velocity field pattern showed a strong electrohydrodynamic secondary flow, which was clearly visible in the downstream regions of the corona wire despite the low Reynolds number for the electrode (Re_CW = 12.4). Secondary flow vortices were also caused by the electrohydrodynamic with increases in the discharge current. Pressure drop increased gradually according to the increase of the electrohydrodynamic number.

Online publication date: Sat, 07-Mar-2009

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