EGU22-10116
https://doi.org/10.5194/egusphere-egu22-10116
EGU General Assembly 2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.

Numerical simulation and experimental validation of the air-water flow in a Hydraulic Test Bench

Zied Driss1, Khadija Rahal1,2, Mariem Lajnef1, Mohamed Salah Abid1, and Manousos Valyrakis3
Zied Driss et al.
  • 1University of Sfax, National School of Engineers of Sfax , Mechanics, Tunisia (zied.driss@enis.tn)
  • 2University of Sousse, ESSTHS, Sousse, Tunisia
  • 3School of Engineering, University of Glasgow, Glasgow, United Kingdom

Air-water flow interfaces around and over most hydraulic structures are complex, yet of crucial importance for safeguarding society and the resilience of the built environment. In this context, the present research work reports a computational fluid dynamics (CFD) methodology to accurately predict the complex air-water flow in a large-scale hydraulic test bench. It focuses on the potential of the volume of fluid (VOF) model to predict the free water surface evolution. The simulations were performed using the commercial software ANSYS Fluent 17.0, which utilized a three-dimensional Navier–Stokes equations in the unsteady flow regime. The Standard k-ɛ turbulence model was used, and the finite volume method was considered. The numerical uncertainty was quantified by the grid convergence index (GCI) method. The numerical results were found to be in excellent agreement with the experimental data.

Keywords: CFD, Turbulent Flows, Air-water flows, Hydraulic test bench.

How to cite: Driss, Z., Rahal, K., Lajnef, M., Salah Abid, M., and Valyrakis, M.: Numerical simulation and experimental validation of the air-water flow in a Hydraulic Test Bench, EGU General Assembly 2022, Vienna, Austria, 23–27 May 2022, EGU22-10116, https://doi.org/10.5194/egusphere-egu22-10116, 2022.