Multicomponent aerosol dynamics: Exploration of direct simulation Monte Carlo technique.

摘要

Computation of aerosol evolution is a problem of interest in many disciplines. We have explored applications of Direct Simulation Monte Carlo [DSMC] to some test problems.; Multicomponent composite aerosols with constant coagulation have been studied with DSMC. It has been found that the result agrees quite well with exact and sectional results. Use of Multicomponent Brownian coagulation model also has been studied with DSMC and it had been found that for constant component density DSMC agrees well with the sectional results. The DSMC has however permitted computation of aerosol evolution when component densities are different, a condition which cannot be unambiguously studied by use of the sectional method.; The computational requirement for DSMC technique has been studied and parallel computing option has been explored. A parallel computing environment was constructed. The computational power and time efficiency that can be obtained from parallel computing has been studied with the same test problems.