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Nearshore wave is the main driver of one of the factors engineering , the calculation has been well received attention. When the storm offshore deep water or swell propagated to the shallow water near the coast , by the water depth , topography and other factors , the wave propagation velocity , wavelength, wave height, surface conditions , etc. will change significantly . Since shallow water is the main area of human practice , so shallow water waves change on coastal marine environment, resources and engineering construction greatest impact . In coastal engineering projects, forecasts and wave breaking wave deformation caused by coastal region flow problem has been an important issue coastal dynamics . Establish a high-precision nearshore wave transformation model prediction models and wave breaking , not only has a high theoretical value , but also has direct engineering significance . Meanwhile, in the numerical simulation of waves , different forms of revetment have different reflectivity, therefore , a reasonable calibration reflectance numerical simulation plays a very important role. In view of this thesis , based on extensive literature abroad , summed up the various types of waves computing models, and numerical simulation . In previous papers on the basis of previous work , the use of offshore areas to simulate the deformation of the fully nonlinear Boussinesq wave wave model , it was extended , so that with the wave , wave , moving boundary processing capabilities. In this paper, both predict a correction finite difference equations for the expansion of discrete and after solving . In the numerical equation solving process , this paper introduces a numerical filtering technology , effectively removing the nonlinear effects in the interaction of small wavelength harmonics to ensure numerical accuracy. In order to verify the applicability and accuracy of the model , this paper several classic experiments were simulated terrain , and the measured data with the experimental results were compared , both in good agreement , indicating that this model has good applicability and sufficient accuracy . Meanwhile , this paper physical model test , based on two-point method , the effects of different forms of revetment wave emissivity, discusses its wave field numerical simulation in the role of practical engineering numerical provide reasonable boundary wave reflection coefficient and improve the numerical simulation accuracy.
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