How Do You Calculate Flow In A Trapezoidal Channel?
How Do You Calculate Flow In A Trapezoidal Channel? The hydraulic radius for flow in a trapezoidal open channel can be expressed in terms of y, b, and z, as follows: i) The cross-sectional area of flow, A, is the area of the trapezoid in Figure 4: A = y(b + B)/2 = (y/2)(b +