Hydraulic Modeling of Trapezoidal High-Velocity Channels

摘要

This Technical Note presents a recently developed two-dimensional (2D) numerical flow model for trapezoidal high-velocity channels. The model is an adaptation of the existing HIVEL2D code that includes boundary capabilities. Because the sidewalls are sloped, not only the depth, but also the waterline location is unknown. This waterline location is essential in the design of flood control channels and is difficult to determine in supercritical flow wherein the boundary may have significant variation.