Civil Engineering Reference
In-Depth Information
where the nonlinearity is modeled in the form of a temporal
Dirac comb distributed in space. The intermittent times
t
are nothing but the arrival times of the structures
t
.
Figure 6.13.
Conditional averages of the wall-normal velocity linked to the
shear layers detected by VITA. a) Primary structures in packets and
b) solitary structures. This figure is adapted from [TAR 95b]
(
) (
)
The function
Qxyz tt
,,
δ
−
can be expressed as
n
n
(
) (
)
(
) (
)
Qxyz tt qfxyz tt
,,
δ
−=
,,
δ
−
n
n
n
e
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