双向波演算模型验证

Theoretical verification of the bi-directional stage routing model

针对河口地区洪水演算受地形、河床结构影响大的特点,水动力学方法常受这些资料条件限制而导致其使用效果不佳或甚至无法使用问题。在水量平衡、河段单元蓄量方程和谢才公式基础上,提出了以物理定律为基础的水位演算模型。考虑到河口地区河道洪水运动受上游洪水波的顺水传播影响的同时又受下游潮水波的逆水传播作用特点,提出了双向波水位演算设想,把水位演算模型改进成了适合于河口特点的双向波水位演算模型。再结合动力学数学物理方程,提出双向隐式差分格式,组成了差分解模型,进而证明了河道水流双向波演算模型与运动波方程的一致性及其演算模型的物理基础。并在曹娥江的河口段进行了检验,表明双向波水位演算模型结构合理、模拟效果良好。

The economic growth of US is driven mainly by household consumption expenditures. In the United States, con-sumption power is tapped by financial innovation, and brand-new demand is created through technique and products innovation. The unified market system within a nation optimizes the consumption environment, and abundant supply of products and services meets the people＇s demands. Thus, we should learn something from consumer-driven economic growth model of the United States.