几种明槽恒定流水面线计算方法的比较  

Comparison of several methods for calculating constant flow surface lines of open slots

作　　者：叶子 周斌 Ye Zi;Zhou Bin(Jiangxi Kexin hydraulic Engineering Survey and Design Co.,Ltd.,Shangrao〓334000,Jiangxi;Shanwei Water Conservancy and Hydropower Planning and Design Institute,Shanwei〓516600,Guangdong)

机构地区：[1]江西科信水利工程勘测设计有限公司,江西上饶334000 [2]汕尾市水利水电规划设计院,广东汕尾516600

出　　处：《吉林水利》2023年第1期37-40,共4页Jilin Water Resources

摘　　要：能量法、Runge-Kutta法和差分法都是常用的明槽恒定流水面线算法。各种方法在求解方法、节点布置、计算精度和稳定性上存在算法差异。通过算法差异的对比揭示了各方法的优缺点,结果表明:能量法应用最为普遍;Runge-Kutta法较适用于断面规则的溢洪道、渠道等人工明槽;差分法对于网状等复杂水系有着独特的优势。Energy method,Runge-Kutta method and difference method are all commonly used open slot constant pipe lining algorithms.There are algorithm differences in solving methods,node layout,calculation accuracy and stability of various methods.Through the comparison of algorithm differences,this paper reveals the advantages and disadvantages of each method.The results show that the energy method is the most widely used,the Runge-Kutta method is more suitable for spillways,channels and other artificial open grooves with regular cross-section,and the difference method has unique advantages for complex river systems such as meshes.

关 键 词：水面线 明槽 算法 稳定性 

分 类 号：TV133[水利工程—水力学及河流动力学]