T. Esmaeili and A. A. Dehghani and A. R. Zahiri and K. Suzuki
3D Numerical Simulation of Scouring around Bridge Piers (Case Study Bridge 524 Crosses the Tanana River)
422 - 426
2009
3
10
International Journal of Civil and Environmental Engineering
https://publications.waset.org/pdf/10046
https://publications.waset.org/vol/34
World Academy of Science, Engineering and Technology
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 threedimensional numerical model, SSIIM program, was used. The model solves 3D NavierStokes 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 kω model gives more reasonable results.
Open Science Index 34, 2009