A wide channel, having a bed slope of 0.01 as shown in Figure P15.2, carries a specific discharge of 5.0  /s. A gate is located in the midway of the channel where the depth of water at the...

A wide channel, having a bed slope of 0.01 as shown in Figure P15.2, carries a specific discharge of 5.0
 /s. A gate is located in the midway of the channel where the depth of water at the vena-contracted section is 0.4 m. Draw the water surface profile and estimate the length of the rising curve formed after the gate using the numerical integration method. Let n = 0.025.