منابع مشابه
Model Investigations of Stepped Spillway
Stepped block protection has considerable potential as a low-cost method for the construction of chute spillways and the protection of embankments from erosion by overtopping flow. Stepped spillways are structurally stable, resistant to water loads and significantly increase the rate of energy dissipation on the spillway face thus eliminating or greatly reducing the need for a large energy diss...
متن کاملStepped Spillway Flows and Air Entrainment
Stepped spillways have become a popular method for handling flood releases. The steps increase significantly the rate of energy dissipation taking place on the spillway face and reduce the size of the required downstream energy dissipation basin. The compatibility of stepped spillways with roller compacted concrete (RCC) and gabion construction techniques results in low additional cost for the ...
متن کاملEffects of End Sill and Step Slope on Stepped Spillway Energy Dissipation
In this study, experimental procedure and laboratory works have been conducted to investigate the energy loss rate on stepped spillway, using inclined steps together with end sill. To have a more elucidated investigation inclined steps with different slopes (Horizontal , 7, 10, and 12 degrees with respect to the horizon) and end sill with different thicknesses (5 and 10 mm) and heights (6, 8, 1...
متن کاملStepped Spillway Performance: Study of the Pressure and Turbulent Kinetic Energy versus Discharge and Slope
In the present study, flow over flat and pooled stepped spillways was simulated three dimensionally. The VOF method and k- ε (RNG) turbulent model was used to simulate the flow over the stepped spillway. The results indicated that the numerical model was acceptably capable of simulating the flow over the pooled and flat stepped spillways for different discharges. Following that, the effect of d...
متن کاملEnergy Dissipation down a Stepped Spillway with Non- Uniform Step Heights
While most stepped spillway design guidelines were developed for uniform step heights, a nonuniform stepped design might be a practical alternative in some cases. A physical study was conducted in a moderate slope stepped chute (1V:2H) and five stepped configurations were tested for 0.7 < dc/h < 1.9. Detailed air-water flow measurements were performed for each configuration and the results were...
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ژورنال
عنوان ژورنال: Canadian Water Resources Journal / Revue canadienne des ressources hydriques
سال: 2004
ISSN: 0701-1784,1918-1817
DOI: 10.4296/cwrj147