【摘要】 通过应用GMDH算法,引入与设计流量密切相关的汇流面积、主河床长度与河道平均坡度的比值、24 h最大降雨量等变量,建立与多因素相关的流量的GMDH模型,并且通过调整K—G多项式的系数,得出适合中小流域设计流量计算的GMDH模型。实例结果表明:该模型的拟合能力强,可作为中小流域设计流量计算的一种方法。更多还原

【Abstract】 This paper establishes the model of design-flow of middle and small river basin with many relative factors by application of GMDH arithmetic and introduction of area of river basin,ratio of length and gradient of river channel,the maximum rainfall of 24 hours and other influential factors,and then gets a GMDH model adapting to the calculation of design-flow of middle and small river basin by adjustment of coeffieient in K-G polynomial.The results of an example indicate that the simulating capability of the GMDH model is powerful and applicable to calculate the design-flow.更多还原