What is the Backwater Effect?
A backwater is a part of a river in which there is little or no current. It can refer to a branch of a main river, which lies alongside it and then rejoins it, or to a body of water in a main river, backed up by the tide or by an obstruction such as a dam. The backwater effect transmits the secondary currents backwards, resulting in the creation of a sinuous pattern upstream from the shrinkage.
The Backwater phenomenon leads to an increase in the water surface level of upstream regions, thereby imposing the threat of submergence during flood events and affecting the longitudinal extent of the river reach.
How to Calculate Normal Discharge at given Stage under Steady Uniform Flow?
Normal Discharge at given Stage under Steady Uniform Flow calculator uses Normal Discharge = Measured Unsteady Flow/sqrt(1+(1/(Velocity of Flood Wave*Channel Slope))*Rate of Change of Stage) to calculate the Normal Discharge, The Normal Discharge at given Stage under Steady Uniform Flow formula is defined as that at the same stage, more discharge passes through the river during rising stages than in falling ones. Normal Discharge is denoted by Qn symbol.
How to calculate Normal Discharge at given Stage under Steady Uniform Flow using this online calculator? To use this online calculator for Normal Discharge at given Stage under Steady Uniform Flow, enter Measured Unsteady Flow (QM), Velocity of Flood Wave (vW), Channel Slope (So) & Rate of Change of Stage (dh/dt) and hit the calculate button. Here is how the Normal Discharge at given Stage under Steady Uniform Flow calculation can be explained with given input values -> 12 = 14.4/sqrt(1+(1/(50*0.1))*2.2).