摘要
提出了河道洪水演进二维水流数学模型的计算模拟方法．考虑了上、下游洪水边界的控制条件及糙率随河道流量变化的调整，并与采用不同尺度流、波分离方法得到的一维洪水波演进的理论解进行了比较，以永定河上游芦沟桥至金门闸河段为例，进行了计算验证，结果吻合良好．
In this paper,a 2 D numerical model of propelling flood in the river was proposed.The control conditions on both up boundary and down boundary and the roughness varying with the river discharges were considered.The calculated result in flume experiments is agreeable with the theory solutions of 1 D flood waves by the method of multiple scales.The model was applied to simulate the propelling flood in Yongdinghe River from Lugoqiao to Jinmenzha.Reasonable agreement is found between the measured data and the model results.
出处
《天津大学学报》
EI
CAS
CSCD
1998年第4期439-446,共8页
Journal of Tianjin University(Science and Technology)
