An experimental study was conducted on a large size stepped spillway model with a moderate slope (26.6o) for a range of discharges between 0.020 and 0.237 m/s. In some experiments, the stepped chute was equipped with uniform steps of 5 and 10 cm heights respectively. In addition several non-uniform configurations with combinations of 5 and 10 cm high steps were investigated. For each configurat...

Abstract: Control of reservoir sedimentation in order to ensure their sustainable use has drawn attention among water engineers and water resource managers. Several methods have been proposed, but most of the developed methodologies are incapable of modelling bed evolutions, while at the same time, compute sediment flushing efficiency. In this study a two-dimensional bed evolution model is prop...

High nitrogen (N) loading to coastal aquatic systems can be expressed as increased algal production and subsequent low dissolved oxygen. In April, 2008, predictions for extreme flood stage for the Lower Mississippi River triggered the opening of the Bonnet Carré Spillway, a major release valve for the river. The spillway diverted approximately 8 km3 of water over one month of operation into Lak...

Spillway berfungsi umtuk melimpahkan kelebihan air yang akan dibuang, sehingga kapasitas bendungan dapat dipertahankan sampai batas maksimum. Penelitian ini bertujuan untuk mengetahui debit banjir serta alternatif dari bangunan pelimpah (Spillway) Bendungan Pamukkulu dengan Tipe Mercu Bulat. Curah hujan rata-rata daerah dihitung metode Polygon Thiessen. Dan dianalisis perhitungan curah rancanga...

Hydraulics has been at the forefront of science for centuries. In this paper, new exciting developments are presented in terms of energy dissipation and multiphase flows. These include the hydraulic design of rectangular dropshafts and stepped chutes for embankment dams, and new air-water studies of spillway flows and dam break waves. The findings demonstrate innovative hydraulic research which...

1 Discussion Verification and Validation of a Computational Fluid Dynamics (CFD) Model for Air Entrainment at Spillway Aerators By M. Cihan AYDIN and Mualla OZTURK, Canadian Journal of Civil Engineering 2009, 36, 826-838. Discussers: Hubert Chanson, Professor, School of Civil Engineering, The University of Queensland, Brisbane QLD 4072, Australia, E-Mail: [email protected] Pierre Lubin, Unive...

The goal of this research was to determine the impact a pooled and flat stepped spillway on energy losses. FLOW3D, which is computational fluid dynamics (CFD) program, with mesh size 0.015 mm used for purpose. First, code tested against an available experimental model data both water flow depth inception point position. outcome precisely shows agreement laboratory work. Second, dissipation resi...