Evi Noviani
Department of Mathematics, Faculty of Mathematics and Natural Science, Tanjungpura University, Indonesia

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Numerical Analysis of Sedimentation in Open Channels Using Computational Fluid Dynamics Yoga Satria Putra; Evi Noviani; Hasanuddin Hasanuddin; Elsa Kurnia; Maria Citra Puella Christy
Journal of Ocean, Mechanical and Aerospace -science and engineering- Vol 68 No 2 (2024): Journal of Ocean, Mechanical and Aerospace -science and engineering- (JOMAse)
Publisher : International Society of Ocean, Mechanical and Aerospace -scientists and engineers- (ISOMAse)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36842/jomase.v68i2.366

Abstract

This study investigates sedimentation in open channels utilizing Computational Fluid Dynamics (CFD). The validation indicates a strong agreement between the simulation and the reference data. Flow velocity substantially decreases in the branched channel post-bifurcation. Similarly, at a 90o bend, there is a notable drop in flow velocity after the curve. A vortex forms in areas where the velocity decreases. Sedimentation prediction can be achieved by observing these velocity reductions in specific channel sections. In the branched channel, low velocities and localized water eddies are found after the bifurcation point. In a channel with a 90o bend, the velocity diminishes on the inner side of the curve, with vortices forming, acting as potential sediment traps. This study highlights the utility of CFD as an effective method for enhancing the understanding of sedimentation processes in river systems.