Experimental Investigation of Flow Aeration on Chute Spillway
نویسندگان
چکیده
منابع مشابه
survey the effect of downstream crest chute slope on the natural air entrainment point in skimming flow in stepped spillway
abstract stepped spillways are of most important hydraulic constructions to dissipation energy of water flow. these constructions are used in opening channel to transfer water from upper level to lower level. because of considerable effect of steps on flow dissipation energy and also the resulted developments in construction of roller competed concrete rcc, the mentioned constructions have draw...
متن کاملFlow aeration, cavity processes and energy dissipation on flat and pooled stepped spillways for embankments
The design floods of several reservoirs were recently re-evaluated and the revised spillway outflow could result in dam overtopping with catastrophic consequences for some embankment structures. Herein a physical study was performed on flat and pooled stepped spillways with a slope typical of embankments (θ = 26.6◦) and four stepped configurations were tested: a stepped spillway with flat horiz...
متن کاملEvaluation the influence of aerator ramp on reducing the cavitations risks in Shafaroud Azad and Gotvand dams
Current weather indifferent fields of science and engineering research purposes and different applications are studied. One of the applications of climate studies, the study of the flow over the weir dam and lower exhaust tunnel is aimed at preventing the risk of cavitations. Aeration is known as one of the most economical and practical way to deal with cavitations on rapid spill ways. In the s...
متن کاملFlat and Pooled Stepped Spillways for Overflow Weirs and Embankments: Cavity Flow Processes, Flow Aeration and Energy Dissipation
For overflow weirs and embankments, the stepped chute profile may increase the rate of energy dissipation on the waterway. Herein four different stepped chute configurations were tested with a focus on the cavity flow processes, flow aeration and energy dissipation performances. Detailed flow visualisations and air-water flow measurements were conducted for all configurations. The results highl...
متن کاملSPHysics Simulation of Experimental Spillway Hydraulics
In this paper, we use the parallel open source code parallelSPHysics based on the weakly compressible Smoothed Particle Hydrodynamics (WCSPH) approach to study a spillway flow over stepped stairs. SPH is a robust mesh-free particle modelling technique and has great potential in treating the free surfaces in spillway hydraulics. A laboratory experiment is carried out for the different flow disch...
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ژورنال
عنوان ژورنال: International Journal of Thermal and Fluid Sciences
سال: 2014
ISSN: 2225-3556
DOI: 10.3923/ijtfs.2015.1.8