The Evaluation of Aerosol Monte Carlo Simulation undergoing Simultaneous Coagulation and Settling
Because of its advantage, such as less-complexity and high-efficiency, the Direct Simulation Monte Carlo method (DSMC) is one of the popular numerical simulation methods for solving the General Dynamic Equation (GDE). Coagulation and Settling are usually the most important mechanisms in the GDE and numerous codes have been developed to solve them in various systems. A modified DSMC is proposed to save the computation time of simulation and the evaluation of this method is also studied in the present paper. The evaluation methods of DSMC for simulation of coagulation and settling individually have been well investigated and but seldom applied to both simultaneously. An evaluation method was proposed in this paper as following: Firstly, for the coagulation scenario, the DSMC method and the sectional method are programmed respectively and validated by self-preserved distribution. Secondly, for the simultaneous coagulation and settling scenario, by adding the analytical solution for the settling mechanism into the sectional method, the results could be served as a benchmark for evaluation. Finally, the DSMC method for the simultaneous scenario is tested and validated by the previous results. The results of simulations show that the time consumption of the DSMC method could be reduced by a factor of 100 and 1000 while running 1000 and 10000 particles respectively. And the results of the DSMC method are consistent with those of the sectional method.
Numerical Simulation Direct Simulation Monte Carlo method (DSMC) General Dynamic Equation (GDE) Validity
Longbo Liu Lixing Zhang
Northwest Institute of Nuclear Technology,Xian ,Shaanxi 710024,China
国际会议
西安
英文
1161-1165
2011-08-17（万方平台首次上网日期，不代表论文的发表时间）