Analysis of the cavitation phenomenon: A case study in the drainage channel of the Aruana neighborhood located in the city of Aracaju-SE
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Abstract
Drainage channels are intended for the drainage of surface water and watercourses. Having a high construction cost, over time they present pathologies requiring inspection and maintenance. Among these pathologies, we can mention the wearing caused by cavitation. Given the above, this research aims to carry out a visual survey, and subsequent analysis, of the occurrences of wearing by cavitation in a drainage channel, in the neighborhood of Aruana, city of Aracaju-SE. First, a visual survey was achieved to assess the situation of the structure; Then, an analysis was performed through the registration of images and a bibliographic survey of the main causes and consequences of this phenomenon. It was possible to verify the occurrence of cavitation wear next to the culverts, on the side walls of the channel, and more intensely, at the junction of the rainwater galleries with the channel. It is concluded that, in many points, the pathology is at an advanced level, requiring urgent intervention; the intervention prevents the evolution of pathologies; the cost of repairs at an advanced stage is high, justifying the importance of periodic maintenance and correction at an early stage; And finally, problems can be avoided or mitigated in the design phase, with the use of better quality materials, and with constant inspections of the structure.
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