Assume wide and shallow Use Mannings equation and froude num

Assume wide and shallow. Use Manning’s equation and froude number

equation (F=1) to get critical depth (.167 m), froude number equation to

get velocity (1.28 m/s), and Q=VA to get discharge (2.134 m3/s).

Answers: Yc = 0.167 m, V=1.28 m/s, Q= 2.134 cms

5. discharge, given n a 0.014. channel 10 m wide, the critical slope is 0.003491. Find the critical depth and r a water flow in rectangular

Solution

From the above given data critical depth can be calculated as follows

criticritical depth = 36m

descharge = 45m3/sec