CAJ | 학술논문

本文从完全非线性的Boussinesq方程出发,首先,对Kirby等（1998）建立的基于高阶非线性Boussinesq方程的数学模型进行测试验证,验证结果表明由Boussinesq方程建立的非线性波模型具有较高的精度,可有效模拟近岸波浪变形及破碎过程。然后将该模型应用于实际工程,模拟工程前后的波浪变化过程,模型很好的反应了波浪传播过程中的反射、折射、绕射、破碎、波生流以及增减水现象,最后,对工程前后模型结果进行对比分析,反应出实际工程导致增水和沿岸流的显著变化。而目前工程设计中设计水位没有考虑工程建成后设计水位的变化,这会对海工建筑物及保护区造成致命性的破坏。因此工程设计水位需考虑工程建成后设计水位的变化。
본문종완전비선성적Boussinesq방정출발,수선,대Kirby등（1998）건립적기우고계비선성Boussinesq방정적수학모형진행측시험증,험증결과표명유Boussinesq방정건립적비선성파모형구유교고적정도,가유효모의근안파랑변형급파쇄과정。연후장해모형응용우실제공정,모의공정전후적파랑변화과정,모형흔호적반응료파랑전파과정중적반사、절사、요사、파쇄、파생류이급증감수현상,최후,대공정전후모형결과진행대비분석,반응출실제공정도치증수화연안류적현저변화。이목전공정설계중설계수위몰유고필공정건성후설계수위적변화,저회대해공건축물급보호구조성치명성적파배。인차공정설계수위수고필공정건성후설계수위적변화。
This article begins with the fully nonlinear Boussinesq equations.Firstly,several example calculations are used to validate the nonlinear wave model which is based on the higher order nonlinear Boussinesq equations.Comparisons show that numerical results agree with experimental data with a higher accuracy.So it indicated that the nonlinear model can effectively simulate the Coastal wave propagation.Secondly,the model is applied to a coastal engineering and simulates the different wave propagation in the process of reflection,refraction,diffraction,breaking and the set-up before and after the establishment of project.Finally,the results are compared and analyzed.The study shows that the coastal engineering makes the water level and current change significantly.However the changes of the design water level which will cause fatal damage to the coastal engineering and the conservation areas after the completion of the coastal engineering is not considered in the current design standards.So it is important to consider the influence of the coastal engineering on the water level.