Author(s): Muhammed Hashid, Zulfequar Ahmad
Linked Author(s): Muhammed Hashid
Keywords: Critical submergence, circular water intakes, bellmouth transitions
Abstract: tThe issue of critical submergence of water intakes under flow near the intake has been studied through experimental considerations. The depth or submergence at which air-entrainment occurs with tip of air-cone of the vortex just reaches the intake is called as critical submergence. Formation of air-entraining surface vortices at the intakes can cause operational difficulties and affect efficient functioning of the water intakes. The present work has been carried out on a laterally placed horizontal circular intake with bellmouth transitions under uniform channel flow. The parameters affecting the critical submergence has been identified and thoroughly studied experimentally. Formulas for computing the critical submergence of intakes are presented based on the experimental data which gives an error of less than 15%
Year: 2017