During a critical river flood event, a bridge deck may become partially or completely submerged by the flow. The deck submergence may be a critical condition for structural stability of river bridges. In this paper, the mean flow fields around a submerged bridge deck and the time averaged drag coefficient on it have been simulated by using FLUENT software. The turbulence models considered are the standard k , renormalization group (RNG) k and Realizable k . In these simulations, the VOF and rigid lid methods have been used for free surface simulation. Reconstruction and Finite volume schemes have been used to determine the position of the free surface in VOF method and the results have been compared. Simulation results of time averaged drag coefficient show that in the case of partially submerged deck, Geometric Reconstruction Scheme in VOF method with standard turbulence model is in better agreement with the experimental results. In the case of fully submerged deck, RNG k and Realizable k turbulence models provide better accuracy than standard turbulence model. Also, simulation results show that Reconstruction based schemes in VOF method are not capable to simulate mixing of water and air and finite volume schemes have to be used for mixing of water and air simulation.
Hamzei, M., Javan, M., & Eghbalzadeh, A. (2011). Comparison of Turbulence Models for Simulation of flow Around the Submerged Bridge Decks. Journal of Hydraulics, 6(2), 69-85. doi: 10.30482/jhyd.2011.85497
MLA
M. Hamzei; M. Javan; A. Eghbalzadeh. "Comparison of Turbulence Models for Simulation of flow Around the Submerged Bridge Decks". Journal of Hydraulics, 6, 2, 2011, 69-85. doi: 10.30482/jhyd.2011.85497
HARVARD
Hamzei, M., Javan, M., Eghbalzadeh, A. (2011). 'Comparison of Turbulence Models for Simulation of flow Around the Submerged Bridge Decks', Journal of Hydraulics, 6(2), pp. 69-85. doi: 10.30482/jhyd.2011.85497
VANCOUVER
Hamzei, M., Javan, M., Eghbalzadeh, A. Comparison of Turbulence Models for Simulation of flow Around the Submerged Bridge Decks. Journal of Hydraulics, 2011; 6(2): 69-85. doi: 10.30482/jhyd.2011.85497