1509 ポイント/タフトコロナ放電における三次元静電流体シミュレーション

概要

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The industrial electrostatic precipitatiors (ESPs) employ negative corona or point corona, which generates discrete discharge along the wire electrodes. Three-dimensional analysis of electrical characteristics and electrohydrodynamics is essential to describe the ESPs having tuft/point coronas. The distribution of the secondary flow (electric wind) is to form a donuts-shape ring from each tuft/point, extending further to inflow and outflow direction. When the primary flow exits, the flow interaction takes place, depending upon EHD number which is defined as the ratio of EHD Reynolds number to the ordinary Reynolds number or simply, the ratio of characteristic electric wind velocity to the primary flow velocity. The electrohydrodyanamic flow field is to form a pair of spiral vortex rings, like Goertler vortices in the direction of the gas flow. The effects of electrohydrodyamics on particle motion and ESP theory were discussed.
社団法人日本機械学会の論文