22 lines
1.2 KiB
TeX
22 lines
1.2 KiB
TeX
|
\chapter{Introduction}
|
||
|
|
In February 2017, a \SI{50}{\tonne} concrete block was displaced by a wave onto
|
||
|
|
the Artha breakwater in Saint-Jean-de-Luz. This event was captured by a
|
||
|
|
photographer, and earlier work from \textcite{amir} allowed to extract the
|
||
|
|
conditions under which this event happened using field data along with
|
||
|
|
numerical modeling.
|
||
|
|
|
||
|
|
The goal of the present study is to establish a numerical model representing
|
||
|
|
the conditions under which this block displacement event happened at the scale
|
||
|
|
of the breakwater. The simulation will be performed using the olaFlow
|
||
|
|
\parencite{olaFlow} model in a three-dimensionnal setting.
|
||
|
|
|
||
|
|
This study presents several aspects that are crucial to consider in order to
|
||
|
|
obtain accurate results. The seastate that lead to the studied event is known
|
||
|
|
thanks to a wave buoy located in front of the breakwater \parencite{amir}.
|
||
|
|
However, in order to input an accurate incident wave into the numerical model,
|
||
|
|
it will be necessary to extract the incident and reflected waves from the raw
|
||
|
|
buoy data. Then, it will be necessary to accurately model the Artha breakwater,
|
||
|
|
especially regarding its porous character. Finally, the results of this
|
||
|
|
simulation will need to be compared to the literature on block displacement by
|
||
|
|
waves for validation.
|