Local scour occurs around the foundations of bridge piers, abutments, spur-dikes, weirs, etc. It is the main reason for the failure of hydraulic structures. Because of the complexity of turbulent flow and sediment transport in rivers with free surface and movable bed, the 3D numerical model is preferred to simulate this local scour process. However, as a successful attempt, the FVM-based CCHE2D model was enhanced to simulate the local scoring around hydraulic structures. The CCHE3D model and the FVM-based CCHE2D model have been tested against several experimental cases of local scour around bridge piers, abutments and spur-dikes. Good agreements have been obtained between measurements and simulations.
Scour Pattern around a Bridge Pier Simulated by FVM-based CCHE2D Model
Comparison of Measured and Simulated Maximum Scour Depthsaround Bridge Piers and Spur-Dikes (FVM-based CCHE2D)
Local Scour around a Bridge Pier Simulated by CCHE3D Model
