نتایج جستجو برای: submerged vane
تعداد نتایج: 10614 فیلتر نتایج به سال:
the shape of a submerged vane is a major factor in the design of a vane system and affects the performance and secondary currents generated by the vanes. this study investigated the effect of five vane shapes on bed sediment processes (local scour at the leading edge and transverse distribution of sediment downstream of the vanes) at four flow intensities for a total of 20 experiments. the resu...
In recent years, installation of plates in canal beds have been considered for sedimentation control and bed load reduction at canal intake. These planes, called submerged vanes, are different in dimensions. They are installed at intakes in-group with reasonable distance from each other. Presence of these vanes at intakes initiate transverse shear stress on river bed and causes sediment transpo...
In recent years, installation of plates in canal beds have been considered for sedimentation control and bed load reduction at canal intake. These planes, called submerged vanes, are different in dimensions. They are installed at intakes in-group with reasonable distance from each other. Presence of these vanes at intakes initiate transverse shear stress on river bed and causes sediment transpo...
When water is taken from desired parts of the natural or regulated riverbed, it necessary to use river regulating structures prevent slope and bed erosion. The main project criterion used in this type regulation flow discharge velocity. Submerged vane are an effective alternative method control studies. In study, study with submerged wane was modeled 3D computational fluid dynamics programs (CF...
Submerged vanes are low aspect ratio flow-training structures mounted vertically on the river bed at an angle to the prevailing flow. The aim of application of vane is to generate a secondary circulation in the main flow, designed to modify the near-bed flow pattern and thus redistribute flow and sediment transport within the channel cross section. Collar is a flat sheet with low thickness fixe...
Regulation structures such as submerged vane are needed to reduce and eliminate environmental damage due increased flooding in rivers. In particular, scours on the outer bank flow velocities cause river bed change deteriorate. this study, effect was investigated experimentally by using 3-array areas close bank. The experimental results were performed open channel setup. Computational Fluid Dyna...
flow passing through lateral intakes and channel junctions is turbulent. sediment flow and bed forms areaffected by these flow patterns and vice versa. in this research, a laboratory study was carried out toexplore a possible method for sediment control for a set of submerged vanes and a single spur dikesimultaneously. since a larger portion of the near-bed flow was diverted, the intake receive...
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