摘要
给出了有限颗粒法(FCM)的一个修正算法,用来模拟二维多孔介质中复杂的物理、生物化学输运现象.该算法不仅具有与早先的FCM一样的优点,而且可以在更微观的水平上保证质量守恒,获得更为准确的颗粒位置,从而有利于质量交换的高精度计算.计算结果与精确解和早先的FCM的结果做了比较.
A modified algorithm of finite cell method (FCM) is presented for simulating complex physical, biological and chemical transport in porous media. It not only has the same advantages as the original finite cell method, but also can keep local mass conservation in more finer meshes, so we may get the locations of cells as well as the final results with high accuracy. Two numerical examples show the comparison between the solutions of modified FCM and original FCM and analytical solutions.
出处
《地球科学(中国地质大学学报)》
EI
CAS
CSCD
北大核心
2003年第5期492-496,共5页
Earth Science-Journal of China University of Geosciences
关键词
地下水污染
反应输运
生物降解
有限颗粒法
groundwater pollution
reactive transport
biodegradation
finite cell method.