The uniform flow in open channels is state that
1
The flow characteristics such as depth of flow, velocity of flow, rate of flow, at any point changes with respect to time.
2
For a given length of a channel, if the depth, slope, cross section and the velocity of the flow are constant.
3
The flow characteristics such as depth of flow, velocity of flow, rate of flow, at any point do not change with respect to time.
4
For a given length of a channel, if the depth, slope, cross section and the velocity of the flow are not constant.