Abstract
References
- Graf, W.and Istirato, I. (2002) “Flow pattern in the scour hole around a cylinder”, Journal of Hydraulic Research, Vol. 40, No. 1, pp. 13-20. Nagata, N., Hosoda, T., Nakato, T., and Muramoto, Y. (2005) “Three-dimensional numerical model for flow and bed deformation around river hydraulic structures”, Journal of Hydraulic Engineering, ASCE, Vol. 131, No. 12, pp. 1074-1087. Afzal M, S. (2013). 3D Numerical Modeling of Sediment Transport under Current and Waves, Thesis presented to the Norwegian University of Science and Technology, in partial fulfillment of the requirements for the degree of Master of Engineering. Guemou, (2013). Numerical investigations of the bridge pier shape influence on the bed shear. Academic Center of Ain Temouchent, Algeria, vol. 18, Bund. Y. 5686. M. Mammar and A. Soudani (2012) Numerical study of external turbulent flow. Revue des Energies Renouvelables Vol. 15 N°1 (2012) 155 – 164 Roulund, A., Sumer, B. M, Fredsoe, J. and Michelsen, J. (2005) “Numerical and experimental investigation of flow and scour around a circular pile”, Journal of Fluid Mechanics, Vol. 534, pp. 351–401. Wilcox D. C (1994). Turbulence Modeling for CFD. DCW Industries Inc., La Canada, California Oliveto, G. and Hager, W.H. (2002). Temporal evolution of clear-water pier and abutment scour. Journal of Hydraulic Engineering, ASCE. 128(9): 811-820.
Simulation Analyses of Flow in the Wake Region of Non-uniform Bridge Pier by using Computational Fluid Dynamic
Abstract
The study presents a three-dimensional numerical simulation of turbulent
flow field around no uniform bridge piers which they are downstream-facing
round- nosed (DS-FRNP) and upstream-facing round- nosed (US-FRNP), were
compared with a circular pier in fixed-bed using the computational fluid
dynamics (CFD). In this paper, the flow field passing around the bridge piers
is predicted using k- ω standard turbulence model. The predicted flow velocity
in x-direction and turbulent kinetic energy (TKE) compares with tested data.
Simulated flow velocity and turbulent kinetic energy are in good agreement with
experimental data. Numerical model predicts the flow features such as flow
reversal upstream the pier, down flow upstream the pier and flow in wake
region, the shape of vortices (horse shoe vortex and wake vortex) also captured
by simulation. The discussion of the relation between bridge pier shape and
turbulent kinetic energy in this study will help to control the scour around
bridge piers.
References
- Graf, W.and Istirato, I. (2002) “Flow pattern in the scour hole around a cylinder”, Journal of Hydraulic Research, Vol. 40, No. 1, pp. 13-20. Nagata, N., Hosoda, T., Nakato, T., and Muramoto, Y. (2005) “Three-dimensional numerical model for flow and bed deformation around river hydraulic structures”, Journal of Hydraulic Engineering, ASCE, Vol. 131, No. 12, pp. 1074-1087. Afzal M, S. (2013). 3D Numerical Modeling of Sediment Transport under Current and Waves, Thesis presented to the Norwegian University of Science and Technology, in partial fulfillment of the requirements for the degree of Master of Engineering. Guemou, (2013). Numerical investigations of the bridge pier shape influence on the bed shear. Academic Center of Ain Temouchent, Algeria, vol. 18, Bund. Y. 5686. M. Mammar and A. Soudani (2012) Numerical study of external turbulent flow. Revue des Energies Renouvelables Vol. 15 N°1 (2012) 155 – 164 Roulund, A., Sumer, B. M, Fredsoe, J. and Michelsen, J. (2005) “Numerical and experimental investigation of flow and scour around a circular pile”, Journal of Fluid Mechanics, Vol. 534, pp. 351–401. Wilcox D. C (1994). Turbulence Modeling for CFD. DCW Industries Inc., La Canada, California Oliveto, G. and Hager, W.H. (2002). Temporal evolution of clear-water pier and abutment scour. Journal of Hydraulic Engineering, ASCE. 128(9): 811-820.
Details
| Primary Language | English |
|---|---|
| Subjects | Engineering |
| Journal Section | Articles |
| Authors | |
| Publication Date | July 25, 2019 |
| Published in Issue | Year 2019Volume: 6 |
