Chapter III
Numerical Modeling
46
Regarding the current patterns in the area, winds and waves originating from the NorthNortheast generate East-West currents along the coast, with an average speed of around 0.4 m/s.
These observations indicate that the current dynamics in the area are not significantly influenced
by variations in wave height and period offshore.
100-Year Return Period
The results obtained for the 100-year return period are presented in Table III-7 and Figure III-9.
The analysis shows that the Bay waves offshore retain over 91% of their initial height of 7.49 m
at the model boundaries.
As the waves enter the bay, their hydrodynamic characteristics, including height and initial
power of 292 KW/m, gradually decrease due to friction with the seabed. This friction slows
down the wave's progression and alters its path through diffraction and refraction when
encountering obstacles, resulting in a progressive dissipation of its energy.
Concerning the Marina, the combined protection offered by Cape Matifou and the bathymetry
results in waves reaching the base of the structure with a height of approximately 2.53 m and a
shoaling coefficient of around 0.34. This indicates a significant reduction of 77% in wave
intensity.
On the other hand, the Port area lacks the protective effect of Cape Matifou, causing waves
approaching from this direction to strike the port obliquely. As a result, the wave heights
observed on the jetties are higher than those in the marina, reaching approximately 5.7 m with a
shoaling coefficient of about 0.76. In this case, the wave energy decreases by only 24% from its
initial state.
The analysis also reveals that all waves converge at the structure's base with a Northward
direction in the marina and a north-northeast direction in the port. This behavior is attributed to
the presence of orthogonal lines perpendicular to the isobaths.
Regarding the current patterns in the area, winds and waves originating from the NorthNortheast generate East-West currents along the coast with a higher average speed compared to
other return periods, approximately 0.45 m/s. These observations indicate that the current
dynamics in the area are not significantly influenced by variations in wave height and period
offshore.
In summary, the wave simulation results reveal varying levels of protection and exposure for the
marina and port. The marina benefits from effective protection provided by Cape Matifou and
the bathymetry, resulting in a significant reduction in wave intensity. However, the port lacks the
same level of protection, making it more vulnerable to higher wave heights. These findings
emphasize the importance of considering different return periods and implementing appropriate
measures to ensure the resilience of coastal structures. The consistent east-west flow of currents
along the coast indicates a stable pattern in the area, unaffected by offshore wave variations.
Numerical Modeling
46
Regarding the current patterns in the area, winds and waves originating from the NorthNortheast generate East-West currents along the coast, with an average speed of around 0.4 m/s.
These observations indicate that the current dynamics in the area are not significantly influenced
by variations in wave height and period offshore.
100-Year Return Period
The results obtained for the 100-year return period are presented in Table III-7 and Figure III-9.
The analysis shows that the Bay waves offshore retain over 91% of their initial height of 7.49 m
at the model boundaries.
As the waves enter the bay, their hydrodynamic characteristics, including height and initial
power of 292 KW/m, gradually decrease due to friction with the seabed. This friction slows
down the wave's progression and alters its path through diffraction and refraction when
encountering obstacles, resulting in a progressive dissipation of its energy.
Concerning the Marina, the combined protection offered by Cape Matifou and the bathymetry
results in waves reaching the base of the structure with a height of approximately 2.53 m and a
shoaling coefficient of around 0.34. This indicates a significant reduction of 77% in wave
intensity.
On the other hand, the Port area lacks the protective effect of Cape Matifou, causing waves
approaching from this direction to strike the port obliquely. As a result, the wave heights
observed on the jetties are higher than those in the marina, reaching approximately 5.7 m with a
shoaling coefficient of about 0.76. In this case, the wave energy decreases by only 24% from its
initial state.
The analysis also reveals that all waves converge at the structure's base with a Northward
direction in the marina and a north-northeast direction in the port. This behavior is attributed to
the presence of orthogonal lines perpendicular to the isobaths.
Regarding the current patterns in the area, winds and waves originating from the NorthNortheast generate East-West currents along the coast with a higher average speed compared to
other return periods, approximately 0.45 m/s. These observations indicate that the current
dynamics in the area are not significantly influenced by variations in wave height and period
offshore.
In summary, the wave simulation results reveal varying levels of protection and exposure for the
marina and port. The marina benefits from effective protection provided by Cape Matifou and
the bathymetry, resulting in a significant reduction in wave intensity. However, the port lacks the
same level of protection, making it more vulnerable to higher wave heights. These findings
emphasize the importance of considering different return periods and implementing appropriate
measures to ensure the resilience of coastal structures. The consistent east-west flow of currents
along the coast indicates a stable pattern in the area, unaffected by offshore wave variations.