|The discrete generalized Nash Model and its application in the river flood routing
|中文关键词: 广义Nash汇流理论 离散方程 河道洪水演算 滞蓄流量 线性组合
|英文关键词: generalized Nash flow routing theory discretization equations river flood routing detention stor-age flow linear combination
| Based on the generalized Nash flow routing theory,the calculation formula was simplified by the definition of S-curve or detention storage curve. The discrete generalized Nash model (DGNM) for river flow routing was derived. The outflow downstream can be expressed by a linear combination of the inflows at the beginning and end of the current time, and the outflows of the current time and several times be-fore. The weight coefficients of the linear combination were obtained by the defined S-curve or detention storage curve. The DGNM,with a clear physical concept,also has a statistical significance. Its structure is very simple and its form is more intuitive, which facilitates its popularization and application in practice. The case study also suggested that the DGNM has a good forecasting ability.