<abstract xmlns="http://www.w3.org/1999/xhtml"><p> This study aims at describing a three-dimensional simulation of a turbulent flow with a high Reynolds number in a rectangular open channel with the presence of a disruptive element (obstacles) transversely. The numerical study is based on measuring the flow velocity in two directions, i.e., horizontal and vertical, in four planes located near the obstacle built across a simulated channel. For the modeling of the free surface, a Volume Of Fluid (VOF) multiphase flow model is used. In the present case, namely a study of turbulence, three numerical models are compared, a k-ε standard, a k-w standard and a Reynolds Stress Model (RSM). The verification of the simulation results has allowed us to show the advantages of the Reynolds stress model. This model is more representative of the phenomena of an intense vortex flow in the presence of obstacles, especially in drainage systems.</p></abstract>

This study aims at describing a three-dimensional simulation of a turbulent flow with a high Reynolds number in a rectangular open channel with the presence of a disruptive element (obstacles) transversely. The numerical study is based on measuring the flow velocity in two directions, i.e., horizontal and vertical, in four planes located near the obstacle built across a simulated channel. For the modeling of the free surface, a Volume Of Fluid (VOF) multiphase flow model is used. In the present case, namely a study of turbulence, three numerical models are compared, a k-ε standard, a k-w standard and a Reynolds Stress Model (RSM). The verification of the simulation results has allowed us to show the advantages of the Reynolds stress model. This model is more representative of the phenomena of an intense vortex flow in the presence of obstacles, especially in drainage systems.

Three-Dimensional Simulation of High Reynolds Turbulent Flows in a Rectangular Open Channel with the Presence of a Disruptive Element (Obstacles) Transversely

Department of Hydraulics – Institute of Civil Engineering, Hydraulics and Architecture, Batna University, Street of Chahid Boukhlouf Med El Hadi, CP 05000 - Batna, Algeria

Department of Hydraulics - Institute of Civil Engineering, Hydraulics and Architecture, Batna University, Street of Chahid Boukhlouf Med El Hadi, CP 05000 - Batna, Algeria

École Nationale des Arts et Métiers (ENSAM) Paris, France

Slovak Journal of Civil Engineering

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

This study aims at describing a three-dimensional simulation of a turbulent flow with a high Reynolds number in a rectangular open channel with the presence of...

Three-Dimensional Simulation of High Reynolds Turbulent Flows in a Rectangular Open Channel with the Presence of a Disruptive Element (Obstacles) Transversely

Publié en ligne: 10 avr. 2015

Pages: 1 - 7

DOI: https://doi.org/10.1515/sjce-2015-0001

© Faculty of Civil Engineering, Slovak University of Technology

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.