Computational Fluid Dynamics Laboratory

Numerical Simulation of Sediment Transport and Bed morphology

     Scour around hydraulic structures is one of critical problems in hydraulic engineering. Under prediction of scour depth can lead to costly failures in the structure, while over prediction can result in unnecessary construction costs. Unfortunately, up-to-date empirical scour methods and equations based on laboratory data are not always able to reproduce field conditions. Because physical scales, fluid properties and boundary conditions in lab-scale models should be derived from a large-scale prototype of field conditions according to the Hydraulic Similitude Laws. However, unlike physical models, computational fluid dynamics (CFD) tools can perform using real field dimensions and operating conditions to predict turbulent flows and sediment scour.

Application: Simulation of Sediment Transport at Gangjeong weir