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@ -44,3 +44,85 @@ made without success, as the model does not seem to be able to compute
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overtopping. Changing the boundary condition at the breakwater does not fix the
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issue, and the model is not able to run with water on both sides of the
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breakwater as the initial condition.
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\paragraph{SWASH overtopping} \cite{suzuki2011applicability,zhang2020numerical} It seems like computing wave overtopping
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should be possible using the SWASH model.
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Implemented model with longer domain, with water behind the breakwater; currently, model crashes when overtopping
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happens.
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The model DOES NOT crash if layers are disabled (depth-averaged model). No overtopping seems to appear in the results.
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Resulting reflection coefficient in \autoref{fig:swash_nolay}: very high reflection coefficient, probably inaccurate.
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\begin{figure}
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\centering
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\includegraphics{R_singlelayer.png}
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\caption{Reflection coefficient computed with Swash without layers (method 1, probable noise-induced
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bias.}\label{fig:swash_nolay}
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\end{figure}
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Model does also work with 2 layers; overtopping does appear \autoref{fig:swash_2lay}.
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\begin{figure}
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\centering
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\includegraphics{R_2lay.png}
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\caption{Reflection coefficient computed with Swash 2 layers (method 1, probable noise-induced
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bias.}\label{fig:swash_2lay}
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\end{figure}
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Model crashes with 3 or more layers.
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\subsection{Model 3}
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Model: \SI{1450}{\m} offshore, \SI{300}{\m} shorewards. \SI{250}{\m} sponge layer. \SI{4.5}{\m} water level. 2 layers.
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\autoref{fig:bathy}
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\begin{figure}
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\centering
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\includegraphics{bathy_b.pdf}
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\includegraphics{bathy_nb.pdf}
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\caption{Bathymetry.}\label{fig:bathy}
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\end{figure}
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Results \autoref{fig:res45}.
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\begin{figure}
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\centering
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\includegraphics{R_2lay_45.pdf}
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\caption{Results (1: breakwater; 2: no breakwater).}\label{fig:res45}
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\end{figure}
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Comparison with reflex3s (array method adapted from PA Poncet) \autoref{fig:reflex3s2lay}.
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\begin{figure}
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\centering
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\includegraphics{reflex3s_2lay.pdf}
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\caption{Reflection coefficient with array method.}\label{fig:reflex3s2lay}
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\end{figure}
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\subsection{Model with measured time-series}
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Using raw buoy data. Model crashes with 2 layers. Works when layers are disabled. \textbf{No overtopping!}
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\autoref{fig:rests}. \SI{1}{\hour} computation time.
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\begin{figure}
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\centering
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\includegraphics{R_ts.pdf}
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\caption{Results with real timeseries, no layers.}\label{fig:rests}
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\end{figure}
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Model runs with 2 layers after adjusting some parameters. \autoref{fig:rests2lay}. Overtopping is computed.
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\begin{figure}
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\centering
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\includegraphics{R_ts_2lay.pdf}
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\caption{Results with real timeseries, 2 layers.}\label{fig:rests2lay}
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\end{figure}
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Model runs with 4 layers. \autoref{fig:rests4lay}.
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\begin{figure}
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\centering
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\includegraphics{R_ts_4lay.pdf}
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\caption{Results with real timeseries, 4 layers.}\label{fig:rests4lay}
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\end{figure}
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%\subsection{2D Model}
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%Working on 2D model which might work with overtopping.
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@ -1173,3 +1173,22 @@
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publisher={Elsevier}
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}
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@inproceedings{suzuki2011applicability,
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title={The applicability of SWASH model for wave transformation and wave overtopping: A case study for the Flemish coast},
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author={Suzuki, Tomohiro and Verwaest, Toon and Hassan, Wael and Veale, William and Reyns, Johan and Trouw, Koen and Troch, Peter and Zijlema, M},
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booktitle={Proc. 5th Int. Conf. Advanced Computational Methods Engineering (ACOMEN 2011), Li{\`e}ge, Belgium},
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pages={14--17},
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year={2011}
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}
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@article{zhang2020numerical,
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title={Numerical simulation of wave overtopping on breakwater with an armor layer of accropode using SWASH model},
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author={Zhang, Na and Zhang, Qinghe and Wang, Keh-Han and Zou, Guoliang and Jiang, Xuelian and Yang, Aiwu and Li, Yan},
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journal={Water},
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volume={12},
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number={2},
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pages={386},
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year={2020},
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publisher={Multidisciplinary Digital Publishing Institute}
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}
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