Abstract: In 1965, Rouse critically reviewed hydraulic resistance in open channels on the basis of fluid mechanics. He pointed out the effects of cross-sectional shape, boundary nonuniformity, and flow unsteadiness, in addition to ...

Abstract: Manning was looking for a dimensionally homogeneous velocity equation but did not achieve it. Later the coefficient in one of his equations was related to Kutter's n. The dimension of n is reviewed here. If n is indeed a ...

Abstract: In the rainfall-runoff process, interaction between surface and subsurface flow components plays an important role, especially in rainwater abstraction and overland flow initiation at the early stage of rainfall events. ...

Abstract: A comparative study of eight different risk calculation methods has been performed on the occurrence probability of inadequate capacity of a culvert to pass floods. The five basic risk calculation methods used in this study ...

Abstract: The Saint‐Venant equations commonly applied to solving unsteady open‐channel flow problems consist of a continuity equation and a momentum equation. In deriving the momentum equation, the pressure distribution is assumed ...