摘要
采用以花园口至孙口河段为基础建立的黄河下游河道洪水演进预报水沙数学模型,在一次有组织的测试中直接将模拟范围下延至利津(即花园口至利津河段),进行了1994年8月洪水现场检验计算,模型仍能成功模拟黄河全下游河道洪水的水沙传播、水位变化及河床冲淤变形过程,由此可见,模型中有关参数表达式在黄河下游水沙运动模拟中具有一定的通用性和稳定性,不需要通过试算作任何调整,模型预测结果可靠性强。
In this paper, based on the reach of Huayuankou to Sunkou, the author builds flood routing forecast flow and numerical sediment model adapting to the Lower Yellow River. In the organized test the author uses this model to simulate the reach between Huayuankou and Lijin and verifies the flood process in August, 1994. The result shows that this model can successfully simulate the flow and sediment, lever, riverbed silt-souring transmutation process. Heretofore, these parameters' expression have definite stability in movement simulation in Lower Yellow River and don't need rectifying. The forecasting result has strong reliability.
出处
《水电能源科学》
2004年第4期30-33,共4页
Water Resources and Power
关键词
数学模型
洪水演进
水位变化
悬沙与床沙
numerical model
flood routing
water level variation
suspended sand load and bed sand load
