3.4.2.1.1 Physical modeling
The fluid model consists of a single medium (water),
where the fluid domain is made as a rectangular box of
dimensions 25 x 10 x 10 m³ (see Table 3.6). Figure 3.37
shows a closer view of the boom fixed at the translational
periodic boundaries of the fluid domain. Figure 3.38
shows a closer view of the boom.
The dimensions of the barrier used in the simulations are
based on preliminary design drawings where the boom
consists of three parts (the top floating tube, middle skirt,
and the bottom ballast). The provisional values available
at the time the simulations were carried out were used
for setting up the model. These values, however, did not
change significantly as the feasibility study progressed.
In the actual situation, the booms have to be buoyant
in seawater and will be partially submerged due to the
weight hanging from the skirt. Hence, the top tube is of
1.499 m diameter that is half submerged in the fluid domain
of the simulations. The middle skirt is of the length
2.95 m and thickness 0.03 m. The bottom ballast has a
diameter of 0.37 m (Figure 3.38).