Numerical Simulation of Hydraulic Jump in a Compound Channel
Received: 26 June 2024 | Revised: 18 July 2024, 24 July 2024, and 26 July 2024 | Accepted: 3 August 2024 | Online: 10 September 2024
Corresponding author: Samia Boudjelal
Abstract
This paper studies the phenomenon of hydraulic jump in compound channels using a numerical model and provides remarkable results. Several values of the opening parameter, h1, are utilized to generate the hydraulic jumps. A recirculation zone is detected by studying the RNG-K-Ɛ turbulent Volume Of Fluid (VOF) model, which is distinguished by the modified directions of the velocity vectors. When compared with the experimental values, the numerical simulation demonstrated very good accuracy, with an error of no more than 9.4%. The results underline the reliability and usefulness of the VOF turbulence model for understanding and simulating the hydraulic processes in compound channels.
Keywords:
hydraulic jump, VOF, compound channel, energy dissipation, RNG-K-Ɛ turbulence modelDownloads
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