马蹄形过水断面正常水深计算的遗传算法

Genetic Algorithm for Calculating Normal Water Depth of Horseshoe Cross Section

马蹄形过水断面是无压输水隧洞中常采用的断面形式之一 ,因其几何形状复杂 ,水力计算困难。目前常采用的方法有试算法、图解法和迭代法 ,这些方法由于计算量大且精度不易保证 ,不便于在生产实践中应用推广。将马蹄形过水断面正常水深计算转化为非线性优化问题 ,采用实数编码的遗传算法进行求解 ,实例计算表明该方法精度高、通用性强、操作简便 ,便于在生产实践中应用。

It is difficult to calculate normal water depth of horseshoe cross section, because its complex geometrical shape. With nonlinear optimal treatment and genetic algorithm(GA), a model is given to calculate normal water depth of horseshoe cross section in this paper. A sample application shows that the model is more applicable and precise than other traditional methods.