南京大学学报（自然科学版）2016，Vol.52Issue(3)：464-469,6.DOI:10.13232/j.cnki.jnju.2016.03.007
变权重粒子追踪方法在裂隙网络溶质运移模拟中的应用
Modeling solute transport in fracture network by particle-tracing method with variable weights
摘要
Abstract
Particle-tracing method is usually used to simulate the solute transport in fracture media.In this method, the concentration at one point is proportional to the number of particles visiting this point.However,this method is rather inefficient at the points with small concentration.Few particles visit these points,which leads to violent oscillation or gives zero value of concentration.In this paper,we proposed a particle-tracing method with variable weights.The concentration at one point is proportional to the sum of the weights of the particles visiting it.By adj usting weights,the number of visiting particles distributes evenly in the whole range.Through this variable weights scheme,we can eliminate the violent oscillation and increase the accuracy of orders of magnitudes.关键词
粒子追踪方法/可变权重/裂隙网络/反常弥散Key words
particle-tracing method/variable weights/fracture network/anomalous dispersion分类
天文与地球科学引用本文复制引用
蒋建国,吴吉春..变权重粒子追踪方法在裂隙网络溶质运移模拟中的应用[J].南京大学学报（自然科学版）,2016,52(3):464-469,6.基金项目
国家自然科学基金(41030746,41172207,41102147) （41030746,41172207,41102147）
