洪水绳套曲线模拟研究

Study on Simulation of Flood Loop Curve

本文根据校正因数法的基本原理,采用浮动多项式选配水位与稳定流量的关系方程和水位与校正因数的关系方程,以模拟计算的流量与实测流量相对误差的平方和最小为目标准则,分析了约束条件,建立了洪水绳套曲线的模拟模型;提出了用正多面体法对模型参数进行求解优化。实例验证结果表明,该法能有效地模拟受洪水涨落影响的水位流量关系绳套曲线,且对受其它因素影响的流量资料整编具有一定的指导意义。

Based on the analysis of the constraint conditions,this paper adopting the principle of adjusting factor method is written to establish a simulation model of flood loop curve using the relational equations between the fluctuating water level and the stable current and between water level and adjusting factors so as to achieve the goal of a minimum of sum of square of calculation deviations between analog computation ’s current capacity and the actual current capacity.It provides a method of optimizing model parameters by the regular polyhedron law.Experiments prove that it can simulate effectively the loop curve affected by flood fluctuation and has a significant guidance to processing informations of current capacities influenced by other factors.