摘要
本文通过采用联立求解地表河流一维明渠非恒定渐变流与地下水拟三维非稳定流运动方程的技术路线,提出了地表河网与地下水流耦合模拟算法。该算法中地表河网流动分别由质量和动量守恒定律而建立的连续性方程和运动方程所组成;地下水流采用多层"拟三维"非稳定流模型,通过彼此间的水力联系,建立了地表河网-地下水流耦合模拟评价模型,该模型可用于地表水与地下水转化关系较为密切地区的水资源综合评价预测中。
The approach for simulating the coupling of surface water with groundwater is established by simultaneously solving the 1-D unsteady open channel flow equations for surface water and the pseudo 3-D unsteady flow equation for groundwater. The equations for surface flow include the continuous equation and movement equation.The pseudo 3-D unsteady flow equation for groundwater is based on a multiple flow layer model. The coupled model can be used to comprehensively assess the water resources in the region where the transformation between surface water and groundwater is closely related.
出处
《水利学报》
EI
CSCD
北大核心
2005年第5期588-592,597,共6页
Journal of Hydraulic Engineering
基金
教育部科学技术研究重大项目(2004-295)
国家自然科学基金(49872080)
国土资源部西部专项课题(20010301-06)
关键词
一维明渠流
地表河网
拟三维流
耦合模拟
1-D open channel flow
surface flow
multiple layer pseudo 3-D model
coupled modeling
