CFD Modeling of Simultaneous Flow Over Broad Crested Weir and Through Pipe Culvert using Different Turbulence Models

Othman K. Mohammed; Yaseen W. Aziz

doi:10.21271/ZJPAS.30.5.11

Othman K. Mohammed Department of Civil Engineering, College of Engineering, Salahaddin University-Erbil, Kurdistan Region, Iraq
Yaseen W. Aziz Department of Dams and Water Resources Engineering, College of Engineering, Salahaddin University-Erbil, Kurdistan Region, Iraq

DOI: https://doi.org/10.21271/ZJPAS.30.5.11

Keywords: Broad Crested Weir CFD Modeling Simultaneous Flow Turbulence Models ANSYS CFX

Abstract

Culverts and broad crested weirs are hydraulic structures that could be used for measuring the flow rate in open channels. In this research, a simultaneous flow over broad crested weir and through pipe culvert was simulated using the numerical software ANSYS CFX. The different turbulence models were used for the modeling of flow turbulent. To achieve the purposes of this research, results of simulations have been compared with data gathered from lab experiments. The computational results showed a close agreement with experimental data obtained from the literature. Also, results indicated that (RNG) k – ε model has the maximum accuracy in comparison with other turbulence models used in this study.

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