摘要
根据山坡地的降雨下渗特性 ,利用质量、能量守恒定理 ,并结合坡地的地貌条件 ,建立了描述山坡地潜水层水流运动规律的剖面二维偏微分方程 ,采用加辽金有限元数值方法求解模型 ,模拟了坡地下渗和土壤表层水流运动过程 ,计算结果能够揭示山坡地产流过程和下渗过程的特点与时空变化 .
A distributed model,which based on the law of conservation of mass and energy and the condition of landforms,was developed to decribe the specialty of rainfall infiltration in hillslope. The finite element method was used for solving the model and simulating the infiltrating process and hillslope subsurface flow. The specialty and the change in time and space of raifall infiltration in hillslope were showed with the simulating results.
出处
《中山大学学报（自然科学版）》
CAS
CSCD
北大核心
2000年第6期107-111,共5页
Acta Scientiarum Naturalium Universitatis Sunyatseni
基金
国家自然科学基金资助项目!( 4 95710 15)
关键词
坡地
降雨下渗
数学模型
产流
水流运动规律
hillslope
rainfall infiltration
mathematics model
finite element metX
