Methods olaflow

nature/main.tex

@@ -1,8 +1,9 @@
-\documentclass[a4paper, twocolumn]{article}
+\documentclass[a4paper, twocolumn, draft]{article}
 \usepackage{polyglossia} \usepackage{authblk}
 \usepackage[sfdefault]{inter}
 \usepackage{graphicx}
 \usepackage[hmargin=2.1cm, vmargin=2.97cm]{geometry}
+\usepackage{hyperref}
 
 \setmainlanguage{english}
 
@@ -13,6 +14,11 @@
 ]{biblatex}
 \bibliography{library}
 
+\hypersetup{
+	pdftitle={Analysis of the displacement of a large concrete block under an extreme wave},
+	pdfauthor={Edgar P. Burkhart}
+}
+
 \title{Analysis of the displacement of a large concrete block under an extreme wave}
 \author[1]{Edgar P. Burkhart}
 \author[*,1]{Stéphane Abadie}
@@ -261,11 +267,40 @@ shorewards boundary to prevent wave reflection on the boundary. In the reflectio
 generated using the wave spectrum extracted from buoy data during the storm. The raw vertical surface elevation
 measured by the wave buoy was used in a second part.
 
+\subsection{Olaflow model}
+
+\subsubsection{Domain}
+
+A 150m long domain is built in order to obtain the hydrodynamic conditions on the Artha breakwater during the passage
+of the identified extreme wave. The bathymetry with 50cm resolution from \textcite{poncet2021} is used. The domain
+extends 30m up in order to be able to capture the largest waves hitting the breakwater. Measurements are extracted 20m
+shorewards from the breakwater crest. The domain is displayed in Figure~\ref{fig:of}.
+
+A mesh in two-vertical dimensions with 20cm resolution was generated using the interpolated bathymetry. As with the
+SWASH model, the porous armour was considered at a macroscopic scale.
+
 \begin{figure*}
 	\centering
 	\includegraphics{fig/aw_t0.pdf}
 	\caption{Domain studied with Olaflow. Initial configuration.}\label{fig:of}
 \end{figure*}
 
+\subsubsection{Model}
+
+A volume-of-fluid (VOF) model in two-vertical dimensions based on volume-averaged Reynolds-averaged Navier-Stokes
+(VARANS) equations is used (olaFlow, \cite{higuera2015}). The model was initially setup using generic values for
+porous breakwater studies. A sensibility study conducted on the porosity parameters found a minor influence of these
+values on the final results.
+
+The k-ω SST turbulence model was used, as it produced much more realistic results than the default k-ε model,
+especially compared to the photographs from the storm of February 28, 2017. The k-ε model yielded very high viscosity
+and thus strong dissipation in the entire domain, preventing an accurate wave breaking representation.
+
+\subsubsection{Boundary conditions}
+
+Initial and boundary conditions were generated using the output from the SWASH wave transformation model. The boundary
+condition is generated by a paddle-like wavemaker, using the water level and depth-averaged velocity computed by the
+SWASH model.
+
 \printbibliography
 \end{document}