元胞自动机在河道演变模拟中的应用

Review of Application of Cellular Models to the River Evolution

对元胞模型在河道演变模拟方面的研究进展及应用情况进行了分析。结果表明:利用元胞自动机来模拟河道演变时基本以长时间尺度为主,阐述河道演变的现象及发展机理,但对于短时期的精确模拟,目前还不适用;为使元胞自动机能够精确模拟河道演变,必须对元胞自动机进行改进,尤其是分水输沙法则以及元胞的网格划分,须根据实际情况的复杂程度进行确定。

The application of cellular model to the channel elevation was analyzed based on the research achievements at home and abroad.It showed that the celluar model was more applicated in a long time scale,which expounded the appearance and mechanism,but for the accurate short time scale simulation it was not suitable.The cellular model should be improved according to the actual situation,especially in water and sediment dispatch and grid division methods,if it was used in accurate simulation.