Study of Bucket type Energy Dissipator with Special Reference to Surge Characteristics^*

The greater adaptability of bucket type energy dissipator has led to the investigation of this type of structure by several research workers. Notable contrilnttions have, been made by Mcpherson and Karr and Elevatorsky and Bekhley and Peterka. There is still “a regrettable lack of knowledge” on this subject and more information is required to help the designer to arrive at all the important elements. This paper deals with tlte determination of the length of the clianwel for the expansion of the surge and the length of the surge itself. Attempts have been wade to correlate these, two elements in dimensionless forms with the other important basic parameters. The scour characteristics, the effect of bucket radius on scour, the action of flow currents, under different tail-water depths are illustrated and discussed. A typical problem has been worked out applying the relationships obtained.