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Homogeneous Dirichlet
Homogeneous Dirichlet conditions force the wavefield to be zero at the specified boundary.
In the scalar acoustic case, this simply gives
and in elastic media, we obtain
It is possible to fix only certain components of the displacement field in the elastic case.
Further reading
More information on the practical use of absorbing boundaries can be found on the following pages:
- the simple config interface in SalvusFlow,
- the low-level description in the SalvusCompute API,
- a tutorial using the Dirichlet condition and absorbing boundaries on different side sets.
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