An Approximate Expression for the Coagulation Coefficient of Bipolar-charged Particles in an Alternating Electric Field

摘要

Based on the kinetic equation of particles and the method used in Williams' research on acoustic coagulation (Aerosol Science, 1991), an approximate expression is proposed for the coagulation coefficient of bipolar-charged particles with the effect of an alternating-current (AC) electric field. When the external electric field is high enough, the proposed solution agrees well with the previous numerical results of Koizumi et al (Journal of Electrostatics, 2000).