Các dạng đường mặt nước trên kênh lăng trụ có lưu lượng tăng dần theo chiều dòng chảy

Abstract

Water surface profiles for steady flow with increasing discharge in a prismatic channel

The prismatic channels that receive the lateral flow with increasing discharge are artificial channels with spatially varied flow. This special hydraulic phenomenon may occur in several hydraulic works, such as drainage ditches, swimming pool gutters, roof gutters, and side channels. The hydrodynamic characteristics of spatially varied flow are complicated due to the force of the lateral flow. Water surface profiles are the important characteristic that are very useful for the verification and design of those hydraulic works. This article presents the water surface profiles for steady flow with increasing discharge in a prismatic channel. Types of water surface are named for each case and the different hydraulic regimes are shown with each specific condition.