Dissipation of energy of a circular jet submerged in water

Abstract

This thesis deals with the study of the dissipation of energy of a high-velocity jet flowing into a standing mass of water. At the instant when the jet enters the standing pool of water, the jet possesses the maximum energy which gets gradually dissipated along its passage in the surrounding medium. The present thesis reports some studies undertaken with a view to studying the mechanism by which the energy of the jet gets decreased to a minimum. A hypothesis for the existence of a critical region where the energy of the jet gets reduced to a minimum has been put forward and found to hold experimentally. Studies are also reported regarding the magnitudes of bed velocities under various conditions of flow. These studies have a practical application in the design of stilling basins under hydraulic structures.