Numerical investigation of single transport around a non-submerged breakwater

Despite erosion control, the construction of structures such as weirs cannot be avoided due to the local formation of flow such as expansion and contraction in the flow passage section, the formation of a downward flow and its impact on the channel upstream of the weir, and the formation of a shear layer and the resulting turbulence. It causes local erosion and a threat to the structure. Weirs are among the common structures in river engineering that are used to adjust the hydraulic conditions of the flow and control the sediment carrying capacity. This type of structure is designed and constructed in the shape and types according to the need and desire. Although the weir structure is constructed to control erosion and stabilize the river area and irrigation channels, it will also be affected by the erosion phenomenon in the flow path and the creation of turbulent, rotating and eddy currents around it. The use of the finite difference method in the analysis of problems of any scalar quantity for use in fluid environments, in the use of a suitable model of discontinuity of equations by reducing the time interval of a number and creating stable conditions for complete solution, in order to increase the accuracy of the results will be achieved. Finite element and finite flow numerical methods have been used in different models for the numerical analysis of use in surface water resources. In this research, the aim is to numerically investigate the transport around a single non-submerged breakwater.

کلیدواژه ها:

breakwater ، non-submerged breakwater ، hydraulic conditions of the flow ، difference method