3D Numerical Simulation of Scouring around Bridge Piers (Case Study: Bridge 524 Crosses the Tanana River)
Due to the three- dimensional flow pattern interacting with bed material, the process of local scour around bridge piers is complex. Modeling 3D flow field and scour hole evolution around a bridge pier is more feasible nowadays because the computational cost and computational time have significantly decreased. In order to evaluate local flow and scouring around a bridge pier, a completely three-dimensional numerical model, SSIIM program, was used. The model solves 3-D Navier-Stokes equations and a bed load conservation equation. The model was applied to simulate local flow and scouring around a bridge pier in a large natural river with four piers. Computation for 1 day of flood condition was carried out to predict the maximum local scour depth. The results show that the SSIIM program can be used efficiently for simulating the scouring in natural rivers. The results also showed that among the various turbulence models, the k-ω model gives more reasonable results.
Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1074503Procedia APA BibTeX Chicago EndNote Harvard JSON MLA RIS XML ISO 690 PDF Downloads 2707
 T. Esmaeili, "Hydraulic and geometric numerical simulation of scouring around concrete bridge piers (case study)," M.S. thesis, Dept. Hydr. Eng., Islamic Azad Univ-South Tehran Branch., 2009.
 A. J. Raudkivi, "Functional trends of scour at bridge piers," J. Hydr. Eng., vol.112, no.1, pp.1-13, 1986.
 C. Mendoza-Cabrales, "Computation of flow past a pier mounted on a flat plate (Published Conference Proceedings style)," in Proc. ASCE Water Resources Engineering Conf., San Francisco, 1993, pp. 899-904.
 D. Motta, R. Pacheco and R. Telo, "Advanced numerical modeling of the scouring process around the piers of a bridge (Published Conference Proceedings style)," in Proc. 32th IAHR Cong., Rom, 2007.
 J. A. Murillo, "The scourge of scour," J. Hydr. Eng., vol. 57, no. 7, pp. 66-69, 1987.
 J. Rhodes and R.E. Trent, "Economics of floods, scour and bridge failures," J. ASCE., Reston, 1999, pp. 1013-1018.
 J. S. Conaway, "Summary and comparison of Multiphase streambed scour analysis at selected bridge sites in Alaska," U.S. Geological Survey Water-Resources Investigations Report 2004-5066, 34p., 2004.
 T. A. Heinrichs, B. W. Kennedy, D. E. Langley and R. L. Burrows, "Methodology and estimates of scour at selected bridge sites in Alaska," U.S. Geological Survey Water-Resources Investigations Report 00- 4151, 44p., 2001.
 N. R. B. Olsen, O. F. Jimenes, L. Abrahamsen and A. Lovoll, "3D CFD modeling of water and sediment flow in a hydropower reservoir," J. Sedimet Research., vol. 14, no. 1, 1999.
 J. E. Richardson, and V. G. Panchang (1998) Three-dimensional simulation of scour-inducing flow at bridge piers. J. of Hydraulic Engineering, ASCE, 124, 530-540.
 N. R. B. Olsen and M. C. Melaaen (1993) Three-dimensional calculation of scour around cylinders. J. of Hydraulic Engineering, ASCE, 119, 1048-1054.
 X. Dou, (1997) Numerical Simulation of Three-Dimensional Flow Field and Local Scour at Bridge Crossings. Ph.D. Dissertation. University of Mississippi, Oxford, MS, U.S.A.
 M. H. Tseng, C. L. Yen, and C. S. Song (2000) Computation of three dimensional flow around square and circular piers. International Journal for Numerical Methods in Fluids, 122, 120-128.
 N. R. B. Olsen. (2007). A three dimensional numerical model for simulation of sediment movements in water intakes with multiblock option, User-s manual (Online). Available: http://www.ntnu.no.
 T. A. Heinrichs, D. E. Langley, R. L. Burrows and J. S. Conaway, "Hydraulic survey and scour assessment of bridge 524, Tanana River at Big Delta, Alaska," U.S. Geological Survey Water-Resources Investigations Report 2006-5282, 66p., 2007.
 V. W. Norman, "Scour at selected bridge sites in Alaska," U.S. Geological Survey Water-Resources Investigations Report 32-75, 160p., 1975.