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| A numerical tour of wave propagation | |
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In elastic wave equation, the modulus
corresponds to two Lame parameters:
and
, in which
and
denote the P- and S-wave velocity. The elastic wave equation can be written as
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(9) |
where
(sometimes
) is stress,
is particle velocity,
. We display the 2 components of elastic wave propagation at
,
modeled with
in Figure 5, in which the grid size is 200x200, the spatial interval is
, and the velocities are chosen to be
,
.
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elasticxz
Figure 5. Two components of elastic wave propagation at
,
modeled with
. Grid size=200x200,
,
,
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| A numerical tour of wave propagation | |
|
Next: Forward modeling
Up: Basic wave equation
Previous: Acoustic wave equation
2021-08-31