Particletracing 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 particletracing method with variable weights.The concentration at one point is proportional to the sum of the weights of the particles visiting it.By adjusting 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.
Jiang Jianguo*，Wu Jichun.
Modeling solute transport in fracture network by particle-tracing method with variable weights [J]. Journal of Nanjing University(Natural Sciences), 2016, 52(3): 464-469
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