Rink Depth at Free Overfall ? A Review

The sudden drop of river bed level is known as Free over fall and acts as a control section. Thus it can be used for the estimation of discharge flowing through the river/stream/open channels. The depth of flow just at the free over fall is known as Brink depth or End depth, by measuring which the discharge can be estimated by correlating it with the critical depth of flow. In fact the discharge can easily be estimated if the critical depth of flow is known and there is a correlation between the brink depth and the critical depth of flow. In the present paper the works carried out in this field have been studied till date. It is also mentioned what work can be carried out in future by studying and analyzing the past work.