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A study conducted at the Laboratory of Hydraulics, Hydrology and Glaciology of the Swiss Federal Institute of Technology aimed to develop a design procedure for spillway chute aerators. Relationships deduced from physical models are compared with prototype data of different aerator schemes.
The Input Geometry page also provides basic chute profile information (stations and elevations) used by the trajectory program, although the trajectory program also has its own separate input page for parameters that are specific to the design and analysis of spillway aerators.
14 de may. de 2010 · Chute aerators are applied if cavitation damage on spillways is expected or observed. The aerator efficiency is usually described with the ratio of the air discharge entrained through the air suppl...
7 de jun. de 2023 · High-velocity flow on spillway chutes may result in low bottom pressure with a high risk of cavitation damage. Chute aerators have been proven, for a long time, as an efficient mitigation measure against cavitation damage on smooth chutes.
15 de sept. de 2011 · The present investigation systematically model-tested typical chute aerators with various approach flow features including preaeration. The resulting air entrainment coefficient as the ratio of air discharge entrained into the flow by the water discharge remains practically unaffected.
Cavitation is a heavy threat for spillways with concrete chutes. Besides a proper design and execution, aeration is an effective means to avoid severe damages. A detailed study on bottom aerators of spillway chutes is presented here.
15 de sept. de 2011 · Chute aerators are applied to high-velocity spillways to entrain air into the flow so that cavitation damage is avoided. Air entrainment occurs locally at the aerator, whereas further downstream the flow is deaerated. This process is relevant because it defines the influence range of an aerator.
