Correcting the multi-Monte Carlo method for particle coagulation

Multi-Monte Carlo (MMC) method does not correctly treat the results of coagulation event between two differentially-weighted simulation particles, resulting in comparatively large error in predicting the evolution of particle size distribution. This study corrected the consequential treatment of coagulation event, satisfying the basic laws of mass conservation and number depletion and then resulting in good prediction for particle size distribution. The corrected MMC method can complete with any available Monte Carlo methods with respect to computational accuracy.