CFD simulation of high-temperature effect on EHD characteristics in a wire-plate electrostatic precipitator

摘要: Abstract A computational fluid dynamics (CFD) model is carried out to describe the wire-plate electrostatic precipitator (ESP) in high temperature conditions, aiming study effects of on electro-hydrodynamic (EHD) characteristics. In model, complex interactions at temperatures between electric field, and particulate flow are taken into account. We apply different numerical methods for fields, including an field Euler–Lagrange particle-laden flows particle charging model. The ionic wind, EHD characteristics collection efficiency investigated. results show causes more significant wind gas secondary flow. High viscosity makes particles follow pattern closely. reduces surface strength, so that mean strength weakens space charging. On contrary, there increase diffusion compared with low temperature. increases ratio drag force over acting which may contribute a decline efficiency.