Abstract: A one phase,two dimensional turbulent flow model—K-ε model of flow field in ayclone, which consideres the effect of the high-voltage electrostatic fields was developed.K-ε model was dispersed by the control-volume method and solved by the SIMPLE algorithm. Three dimensional velocity profiles in electrostatic cyclone were obtained by numerical simulation, and verified. It was concluded that the shape of velocity profile in flow field had little changed while the values of three dimensional velocities had distinctly changed in the electrostatic field. Three dimensional velocities decreased with increasing diameter of cylinder at the same inlet gas rate.

摘要： 建立了旋风静电除尘器单相准三维湍流的K-ε模型.采用控制容积法对其进行离散,用SIMPLE法求解流场分布.得出一定条件下除尘器内三维速度数值模拟结果，并经实验验证.结果表明,供电电压的大小对流场分布形状影响不大, 但对其速度大小的影响比较明显;在相同入口风速下，随着筒体直径的增加，三维速度的分布曲线都变平缓.