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基于CMS-Wave波浪数学模型,通过在其波浪能量平衡方程中引入植被波能损耗项,并考虑了波浪的折射、反射、破碎、波流相互作用及底摩擦等作用,计算了有植被作用下的波浪传播与变形.该模型的求解以波能平衡方程为基础,采用有限差分法进行数值离散,并应用Gauss-Seidel迭代法计算离散的方程组,得到计算域的波高、周期以及波向等波浪要素信息.首先通过模拟一维简单地形和二维复杂地形的波浪传播,对模型的适应性及有效性进行评估;随后对不规则非破碎和破碎波浪在柔性植物区的传播变形进行模拟,计算结果表明,修正的CMS-Wave模型能够精确地计算植被影响下波浪在复杂地形的传播与变形,这可对近一步研究近海湿地植被的消波效应及湿地海域极端风浪的防灾减灾提供技术支撑.
Based on CMS-Wave wave mathematical model, the energy loss of vegetation wave was introduced into the wave energy balance equation, and the effect of vegetation was calculated by considering the effect of wave refraction, reflection, crushing, wave flow interaction and bottom friction. Of the wave propagation and deformation.The model is based on the wave energy balance equation, using finite difference method for numerical discretization, Gauss-Seidel iterative method to calculate discrete equations, the calculated wave height, period and wave direction Wave element information is firstly used to evaluate the adaptability and validity of the model by simulating wave propagation in one-dimensional simple and two-dimensional complex terrain. Then, the propagation and deformation of irregular non-broken and broken waves in the flexible plant area are simulated, The results show that the modified CMS-Wave model can precisely calculate the wave propagation and deformation in complex terrains under the influence of vegetation, which can provide technical support for the study of the wave elimination effect of coastal wetland vegetation and the prevention and mitigation of extreme storms in the wetland waters support.