Numerical simulation study on the effect of wind on the hydrodynamic characteristics of undular tidal bores seawall
Based on the two-dimensional incompressible two-phase flow numerical model,the reliability of the two-phase flow surge computational model in simulating the interaction between the wave-like surge and the sea pond is verified by comparing the numerical computational results with the experimental data.Then,this paper systematically analyses the effects of wind speed,surge height,pre-tidal water depth and slope gradient on the wave-exceeding characteristics of the undulating surge on the seapond by setting up reasonable calculation conditions.Calculation results show that wind speed significantly affects the wave overtopping of the wave-like surge on the seapond,the higher the wind speed,the higher the wave overtopping of the surge,and the higher the load on the retaining wall;with the increase of surge height and pre-tidal depth,the wave overtopping of the surge and the load on the retaining wall increase;when the slope of the seapond is increased,the wave overtopping and the load on the retaining wall show the tendency to increase firstly and then decrease later.The research results of this paper have certain reference significance for the correct understanding of wave surge in the pond under the action of wind,and the change rule of the load law of wave retaining wall,which provides a scientific basis for the engineering design and safety assessment of water-related buildings in the river section of wave surge.
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