摘要
针对现有梯形断面临界水深计算方法的公式表达形式不简捷、计算精度不高等问题,采用优化拟合方法,提出一种更加简捷实用的简化算法。实例计算分析及比较结果表明,该算法在工程实用参数范围内,可获得较高的计算精度,最大拟合误差小于0.556%,平均相对误差仅为-0.001%,相对误差小于0.5%的点占总比较点数的89.3%,完全能够满足实际工程的设计精度要求。
optimal firing method is adopted, and a more convenient and practical simplified algorithm is proposed aiming at the problems of existing trapezoidal cross-section critical depth calculation method, such as inconvenient formula expression form, low calculation precision and the like. Precision analysis and example calculation result comparison show that the algorithm can obtain higher calculation precision in the scope of engineering practical parameters. The maximum fitting error is less than 0.556%. The average relative error is only -0.001%. The points whose relative error is less than 0.5% account for 89.3% of total comparison points. It can completely meet the design precision requirement of practical engineering.
出处
《中国水能及电气化》
2012年第11期38-41,共4页
China Water Power & Electrification
关键词
梯形明渠
临界水深
优化拟合
简化算法
trapezoidal open channel
critical depth
optimal fitting
simplified algorithm
