diff --git a/report/chapters/olaflow.tex b/report/chapters/olaflow.tex new file mode 100644 index 0000000..23e8568 --- /dev/null +++ b/report/chapters/olaflow.tex @@ -0,0 +1,9 @@ +\chapter{OlaFlow} + +\section{2D Model} +A 2Dv model was built on a small domain around the breakwater (\SI{250}{\m} +from the crest). + +A tool that allows mapping the output fields from swash to the initial fields +in olaFlow was built. Alpha.water and U fields are mapped from swash to +olaFlow. diff --git a/report/chapters/swash.tex b/report/chapters/swash.tex new file mode 100644 index 0000000..7e62854 --- /dev/null +++ b/report/chapters/swash.tex @@ -0,0 +1,46 @@ +\chapter{SWASH model} + +\section{1D model} + +In order to find out if the reflection induced by the breakwater has an +influence on the sea state at the buoy's location, a one-dimensional model of +the zone between the buoy and the breakwater was created. + +The considered domain is \SI{1450}{\m} long, with \SI{1250}{\m} between the +buoy and the breakwater, and a further \SI{200}{\m} offshore of the buoy. +The model is a 10 layers swash model accounting for porous media in near the +breakwater. The model was adapted from PA Poncet. + +\subsection{Model 1} + +A first run was produced in order to test the model with a water level of +\SI{0.5}{\m} using the measured spectrum from 2017-02-28 as the offshore +boundary condition and a sommerfeld radiation condition on the breakwater +boundary. The model was run over a duration of 30 minutes. + +The same model was implemented without the breakwater (by forcing a minimum +depth) with an added \SI{250}{\m} sponge layer at the shorewards boundary. + +The reflection coefficient at the buoy's location was computed using +a PUV method \parencite{huntley1999use}. + +The results are displayed in \autoref{fig:swash_1_R}. Two methods of +calculating the reflection were used \parencite{huntley1999use}, the second one +might be wrongly implemented, and the first one might be subject to +noise-induced bias. + +\begin{figure} + \centering + \includegraphics{R1.png} + \includegraphics{R2.png} + \caption{Reflection coefficient computed with Swash. 1: With breakwater; 2: + Without breakwater.}\label{fig:swash_1_R} +\end{figure} + +\subsection{Model 2} + +An attempt at running the model with the correct water level (\SI{4.5}{\m}) was +made without success, as the model does not seem to be able to compute +overtopping. Changing the boundary condition at the breakwater does not fix the +issue, and the model is not able to run with water on both sides of the +breakwater as the initial condition. diff --git a/report/fig/R1.png b/report/fig/R1.png new file mode 100644 index 0000000..d6b3da1 Binary files /dev/null and b/report/fig/R1.png differ diff --git a/report/fig/R2.png b/report/fig/R2.png new file mode 100644 index 0000000..1e15d92 Binary files /dev/null and b/report/fig/R2.png differ diff --git a/report/main.tex b/report/main.tex index f5c6aa4..26a8f5a 100644 --- a/report/main.tex +++ b/report/main.tex @@ -14,6 +14,8 @@ pdfauthor = {Edgar P. Burkhart}, } +\graphicspath{{fig/}} + \title{\interlight\huge M2 Internship\\{\Huge Bibliography review}\\ \vspace{1em} Simulation of the breaking wave flow which generated the 50T concrete block displacement at the Artha breakwater on February 28, 2017} @@ -36,6 +38,8 @@ Burkhart\thanks{\email{edgar-pierre.burkhart@etud.univ-pau.fr}, %\include{notes/bibliography_research} \include{chapters/introduction} \include{chapters/literature} +\include{chapters/swash} +\include{chapters/olaflow} \backmatter %\nocite{*}