Based on strict mathematical derivation, a formula is developed for calculation of geometric and hydraulic factors of optimum hydraulic section design of open trapezoid channels, such as water depth, area of discharge section, hydraulic radius, and so on. In combination with calculation examples, the method of hydraulic calculation is explained in detail, providing a theoretical basis for section design of channels of this type.
Advances in Science and Technology of Water Resources
open trapezoid channel with curved bottom
optimum hydraulic section