2 Excitation of the Waves with a Focused Source …
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Fig. 2.6 Dependence of the amplitude of the transverse displacement of the speed of a moving
source
Figure 2.7 presents the dependences of the longitudinal U and transversal V
displacements on depth. The curves are given in dimensionless form: the displacement amplitudes are related to the normal displacement amplitude on the surface
V y=0 . Depth is plotted in fractions of wavelength. It is clear from the graphic image
that the displacement components decrease exponentially with depth, the transverse
component of the displacement vector always exceeds the longitudinal one, and
the particles rotate as the surface wave propagates in the x-axis direction along an
elliptical trajectory.
Fig. 2.7 Dependence of the amplitudes of displacements in the surface wave on the depth
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Fig. 2.6 Dependence of the amplitude of the transverse displacement of the speed of a moving
source
Figure 2.7 presents the dependences of the longitudinal U and transversal V
displacements on depth. The curves are given in dimensionless form: the displacement amplitudes are related to the normal displacement amplitude on the surface
V y=0 . Depth is plotted in fractions of wavelength. It is clear from the graphic image
that the displacement components decrease exponentially with depth, the transverse
component of the displacement vector always exceeds the longitudinal one, and
the particles rotate as the surface wave propagates in the x-axis direction along an
elliptical trajectory.
Fig. 2.7 Dependence of the amplitudes of displacements in the surface wave on the depth