摘要
非均匀流可分为渐变流和急变流。在明渠中渐变流的水深可能沿程逐渐增大,也可能逐渐减小,从而形成常见的壅水曲线或降水曲线;而明渠中急变流的水深可以在局部急剧增大,也可以在局部突然降低,从而形成常见的水跃或水跌。
Non-uniform flow can be divided into a gradient flow and rapidly varied flow.Gradually varied flow in open channel water depth increases gradually along the way may be,may also be gradually reduced,thus forming a common backwater curve or precipitation curve;rather rapidly varied flow in open channel water depth increases rapidly at the local,you can also suddenly in the local reduced,thereby forming a common water jump or water down.
引文
[1]汪德爟.计算水力学:理论与应用[M].北京:科学出版社,2011:140-144.
[2]陈柏荣.防汛与抗旱[M].北京:水利水电出版社,2007:82.