Compare Of The Numerical Models On Wave Propagation In Nearshore Areas

Wave is one of the most active dynamics factors in ocean. Most ocean and coastal engineering are affected by waves. Therefore, the wave factors are often the most basic parameters to confirm the fabrication cost of the engineering, the building pattern, etc. When the waves in open waters are traveling from deep waters to shallow ones in near-shore area, being influenced by topography, depth of water, island, etc., the rules of wave refraction, reflection, diffraction and transfiguration are complex. The wave problem of engineering design, usually adopts mathematics model to simulate the propagation and transformation of wave, to acquire the wave factors in near-shore engineering area.A series of MIKE 21 Wave Models have been more and more popular since they appeared in the world. These Wave Models are quite different when simulating wave conditions, i.e., various methods are used to deal with energy-input, energy-dissipation, wave refraction, diffraction and reflection. This paper mainly involves MIKE 21 SW, MIKE 21 NSW and MIKE 21 BW. Integrated analysis shows that obviously differences exist in wave models. So, in order to gain veracious simulation results, it is necessary to choose most suitable wave model or even use two or more then two wave models to solve wave problems in projects. And this paper also provides reference to select suitable models when using MIKE 21 models in project.