Author(s): Michele Palermo; Huan Wei; Ajit Kumar; Fabian Bombardelli And Simone Pagliara
Linked Author(s): Michele Palermo
Keywords: Cohesive soils Erosion mechanisms Low-inclined jets Scour morphology
Abstract: Jet-induced scour is a common phenomenon occurring downstream of many hydraulic structures (e. g., dams, culverts, spillways, bridges, etc. ). While scour can lead to structural failure, it can also be regarded as an essential means to enhance river and marine habitats. This dual nature of the mentioned phenomenon requires a deep understanding of its physics. However, despite the practical relevance of the topic, studies dealing with scour due to inclined jets in cohesive soils are relatively scarce. Only very recently, Palermo et al. (2024) has provided a comprehensive analysis of three-dimensional (3D) scour caused by plunging jets, involving both developed and developing jets under different hydraulic conditions and for jet angles ranging from 45° to 90°. Namely, they furnished unprecedented insights on the scour dynamics, highlighting that the inclination of the jet, the jet regime and the random nature of the scour mechanism should be considered when developing tools to predict equilibrium scour geometry. In so doing, they also indicated that the analysis of scour process should be extended to lower jet inclinations. In this paper, we focus on the characteristic features of the scour morphology at equilibrium for jet angle equal to 30°. In so doing, we provide some interesting observations, paving the way to further analyses that will supplement the recent findings by Palermo et al. (2024).
Year: 2025