302
In the bottom layer as it was expected (Fig. 9.21b), the cascade of turbulence is
fully developed; and besides, from the interaction between particles of different
paths, arise rotational movements due to the shear stresses effect in the turbulent
boundary layer. There, the viscous stresses have a great relevance to change the
direction of the velocity fields, enabling the formation of vortices and chaotic movements that create a two-phase flow without a defined trajectories. This can be one of
the reasons why the spit is originated next to the Western Groin, where the influence
of the depth is so important that supported by the diffraction effect permit the deposition of coarser sediments.
9.5.4.2 Wave Height
In the Mallorquín lagoon arrived wave fronts of 0.8 m maximum and minimum of
0.2 m (Fig. 9.22a). This is because the groin generates a warm area that changes the
behavior of wave trains, creating conditions of less intensity in terms of wave
energy. The behavior of wave propagation during the dry season of 2010 showed
wave heights in front of the access channel with maximum values up to 2  m
(Fig. 9.22b).
Currents (m/s) surface - 25-feb-2010
Currents (m/s) bottom - 25-feb-2010
x coordinate
x coordinate (km)
y coordinate (km)
1.71
9.12
9.14
9.16
9.18
9.2
1.712
1.714
1.716
1.718
1.72
1.722
1.724
1.725
1.71
1.712
1.714
1.716
1.718
1.72
1.722
1.724
1.725
3
2
1
2.5
1.5
0.5
0
x 10
6
x 10
6
x 10
5
9.12
9.14
9.16
9.18
9.2
x 10
5
a
b
Fig. 9.21 Velocity field during highest astronomical tide during dry season (February, 2010) (a)
surface (b) bottom
G.D. Rivillas-Ospina et al.