Author(s): Leiza D’Angelo; German Spadari; Paula Consoli Lizzi; Federico Zabaleta; Fabian Bombardelli
Linked Author(s): Fabian Bombardelli
Keywords: Ir entrainment Hydraulic jump RANS
Abstract: This study employs a novel theoretical/numerical model, developed within a Reynolds-Averaged-Navier-Stokes (RANS) framework, to analyze self-aerated flows in hydraulic jumps. Two-dimensional numerical simulations were conducted with Froude numbers ranging from 2 to 8.48, representing a variety of flow conditions. Comparisons with experimental data from the literature demonstrate that the model successfully captures air concentration, velocity profiles, toe oscillation frequency, and free surface position. Whereas the peak of entrained air was overestimated near the toe, predictions improved significantly downstream. The results suggest that the model provides a computationally efficient tool for studying the dynamics of air-water interactions in hydraulic jumps.
Year: 2025