Author(s): Alicia Ros-Bernal; Jose M. Carrillo; Juan T. Garcia; Luis G. Castillo
Linked Author(s): José M. Carrillo, Alicia Ros Bernal, Luis G. Castillo Elsitdié
Keywords: No Keywords
Abstract: The current understanding of energy dissipation basins located at the base of rectangular free-falling jets is significantly limited. The hydraulic jumps generated in these structures play a crucial role in energy dissipation, driven by the creation of large-scale turbulence structures. These structures are associated with notable hydrodynamic pressure fluctuations acting on the bottom and sidewalls of the energy dissipation basin. The behavior of vortices is influenced by the presence of trapped air pockets. Recognizing the effect of trapped air is essential due to the disparities in apparent density between aerated jets and clear water jets. Aerated jets, owing to their lower density, possess reduced momentum, contributing to the generation of lower pressures at the bottom of the energy dissipation basin. However, the existence of air bubbles diminishes shear stresses in the basin, enabling aerated jets to flow at higher velocities (Duarte et al., 2015). Consequently, both effects must be considered during the design phase of hydraulic structures aimed at dissipating the energy stored in the reservoir, thereby ensuring the safety of the structure during its operational lifespan.
Year: 2024