摘要
利用空间概念上的分步法 ,对剖面二维悬移质泥沙输移方程 ,提出两种不同的计算格式。通过比较分析后认为 :在对流项较弱时 ,可采用隐格式计算 ;在对流项占优时 ,为消除解的振荡 ,应采用显隐混合格式。另外 。
The method of fractional steps is used to split vertical 2 D suspended sediment transport equation. Then two different computation schemes are presented. Through comparison and analysis, it is suggested that: as the advection term is poor, the implicit scheme is proper; as the advection term is preponderant, the implicit explicit hybrid scheme is very reasonable. Experimental results are used to verify two computation schemes, and good agreements are obtained.
出处
《长江科学院院报》
EI
CSCD
北大核心
2000年第2期14-17,共4页
Journal of Changjiang River Scientific Research Institute
基金
国家自然科学基金和水利部联合资助重大项目!(编号 :5 9890 2 0 0 )