Assessing Cavitation Erosion on Solid Surfaces Using a Cavitation Jet Apparatus
This study is dedicated to the examination of cavitation-induced erosion, a critical factor in optimizing the efficiency of hydraulic systems, including hydropower plants and pumping systems. To accomplish this, we conducted a sensitivity analysis utilizing a cavitation jet apparatus (CJA) and an ex...
| Autores: | , , , , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2023 |
| País: | Brasil |
| Institución: | Instituto Federal do Rio Grande do Norte (IFRN) |
| Repositorio: | Holos |
| Idioma: | portugués inglés |
| OAI Identifier: | oai:holos.ifrn.edu.br:article/16306 |
| Acceso en línea: | http://www2.ifrn.edu.br/ojs/index.php/HOLOS/article/view/16306 |
| Access Level: | acceso abierto |
| Palabra clave: | Cavitation Cavitation Erosion Erosion Submerged Cavitation Jet Nozzle Geometry Cavitation Jet Apparatus (CJA) Cavitação Erosão por Cavitação Jato de Cavitação Submerso Geometria do Bocal Aparelho de jato de cavitação (CJA) |
| Sumario: | This study is dedicated to the examination of cavitation-induced erosion, a critical factor in optimizing the efficiency of hydraulic systems, including hydropower plants and pumping systems. To accomplish this, we conducted a sensitivity analysis utilizing a cavitation jet apparatus (CJA) and an experimental configuration that featured a vertical cylindrical test tank, a submerged nozzle, and an aluminum sample (specifically, alloy 6351 T6). The study maintained a consistent standoff distance of 5 cm and an orifice diameter of 2 × 10-3 m. Two distinct nozzle geometries were tested to assess their influence on cavitation erosion. The outcomes revealed that the 20° conical sharped-edges nozzle resulted in the highest erosion rates, while the commercial nozzle (MEG 2510) caused comparatively less erosion. By standardizing the test duration to 1200 seconds and using a cavitation index of 0.14, the researchers avoided overlapping pits. In summary, the CJA, with these adjustments, demonstrated its effectiveness as a tool for evaluating the resistance of solid surfaces to cavitation. |
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