The applicability of SWASH model for wave transformation and wave overtopping: A case study for the Flemish coast
The applicability of SWASH model for wave transformation and wave overtopping: A case study for the Flemish coast
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发表时间：
2011
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通讯作者：
Tomohiro Suzuki;T. Verwaest;W. Hassan;W. Veale;J. Reyns;K. Trouw;P. Troch;M. Zijlema
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作者：
Tomohiro Suzuki;T. Verwaest;W. Hassan;W. Veale;J. Reyns;K. Trouw;P. Troch;M. Zijlema
SWASH模型是一种较新的时域波浪传播模型，它基于非静水压力下的非线性浅水方程组。本文研究了SWASH模型在模拟浅水前滩波浪变形和越浪流量方面的适用性。将数值模拟结果与同一物理试验台的物理模型资料进行了比较，得到了波浪在浅岸的变形和堤顶的越浪流量，两者吻合较好。结果表明，模型中的非静水压力对波浪的变形起着重要的作用。底摩阻力是宽顶堤越浪流量预报的重要参数。
SWASH model is a relatively new time-domain wave propagation model based on the non-linear shallow water equations with non-hydrostatic pressu re. The applicability of SWASH model for modelling wave transformation and wave overtopping discharge on a shallow foreshore is investigated in this paper. The results from numeri cal simulations in terms of wave transformation on the shallow foreshore and wave overtopping disch arge on the dike crest are compared with physical model data of the same physical test set-u p. Good agreement has been obtained for both wave transformation and wave overtopping discharge. It is found that the non-hydrostatic pressure in the model plays an important role in the wave tr ansformation. Also it becomes clear that bottom friction is important calibration parameter for pre dicting wave overtopping discharge for cases with a wide crested dike.