Three-dimensional numerical simulation system and method for simulating seabed sand wave evolution under complex conditions

The invention relates to the field of marine environment and marine landform research, and particularly discloses a three-dimensional numerical simulation system for simulating seabed sand wave evolution under complex conditions, which comprises an environmental condition module used for simulating each influence factor influencing sand wave evolution under an actual marine environment; and the sand wave evolution module is used for simulating submarine sand wave landform morphology evolution. According to the invention, three-dimensional numerical simulation of dynamic evolution of seabed sand waves under complex conditions can be realized, and the method is applied to ocean engineering design and maintenance. According to the method, sand wave motion evolution under different geographic positions and under the influence of various environmental conditions can be predicted, so that design and maintenance of pipe cables and structure foundations in ocean engineering are assisted. 本发明涉及海洋环境、海洋地貌研究领域，具体公开了模拟复杂条