What is River Navigation?
When a stretch of river is made navigable, a lock is sometimes required to bypass an obstruction such as a rapid, dam, or mill weir – because of the change in river level across the obstacle.
In large scale river navigation improvements, weirs and locks are used together. A weir will increase the depth of a shallow stretch, and the required lock will either be built in a gap in the weir, or at the downstream end of an artificial cut which bypasses the weir and perhaps a shallow stretch of river below it. A river improved by these means is often called a Waterway or River Navigation.
How to Calculate Diffusion Coefficient?
Diffusion Coefficient calculator uses Diffusion Coefficient at x = Apparent Dispersion Coefficient*(Coordinate along the Channel+Distance Outside the Estuary)/Distance Outside the Estuary to calculate the Diffusion Coefficient at x=0, The Diffusion Coefficient formula is determined when the salinity matches that of the ocean, affecting the extreme salinity distribution (maximum and minimum intrusion) during moments of slack water. Diffusion Coefficient at x=0 is denoted by D0 symbol.
How to calculate Diffusion Coefficient using this online calculator? To use this online calculator for Diffusion Coefficient, enter Apparent Dispersion Coefficient (D), Coordinate along the Channel (x) & Distance Outside the Estuary (B) and hit the calculate button. Here is how the Diffusion Coefficient calculation can be explained with given input values -> 3.15 = 0.6*(17+4)/4.