求解圆形排水管道正常水深的一种新方法  

A New Method for Solving Normal Depth of Circular Drainage Pipe Line

作　　者：殷彦平[1] 吕宏兴[1] 张宽地[1] 

机构地区：[1]西北农林科技大学水利与建筑工程学院,陕西杨凌712100

出　　处：《水利与建筑工程学报》2011年第4期18-21,共4页Journal of Water Resources and Architectural Engineering

基　　金：国家自然科学基金资助项目(41001159);国家"973"计划课题(2007CB407201);高校博士点基金项目(20090204110019)

摘　　要：将圆形断面均匀流水深的计算建模为一个非线性约束优化问题,应用混合模式搜索算法加以求解。通过实例计算以及与文献方法的计算结果对比分析,表明混合模式搜索算法求解圆形断面均匀流水深适用性强、计算精度高、算法实现简单,同时验证了算法的有效性和正确性,为圆形排水管道正常水深问题的求解提供了一条新途径。The calculation of normal water depth could be converted into a nonlinear constrained optimization problem,which could be solved by a new pattern searching algorithm.Through the application examples and comparing the simulation results with the referent results,it is shown that the new pattern searching algorithm is much more applicable,precise and simple than the traditional methods for the calculation of normal water depth.At the same time,the correctness and validity of the new method is demonstrated,which could provide a new tool for obtaining the normal water depth of circular drainage pipe line.

关 键 词：圆形过水断面 水力计算 模式搜索算法 

分 类 号：TV131[水利工程—水力学及河流动力学]