Internal Hydraulics of Diffusers with Uniform Lateral Momentum Distribution

Abstract

This study deals with the internal hydraulics of a multiport diffuser that ensures uniform momentum distribution along the span of main pipe. Multiport diffuser systems consisting of lateral outlets are generally found suitable for mixing chemicals and for the disposal of large quantities of industrial effluents. For effluents whose mixing is dominated by the source momentum flux, it is important to maintain a uniform lateral momentum distribution along the length of the main pipe. Experiments to verify the proposed model were also conducted. Results in the form of design charts for specific cases of hydraulically smooth as well as rough pipes are presented.