Add DG FreeOutflow boundary condition to GRMHD #4196
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nilsdeppe
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Sep 1, 2022
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LGTM! A few minor things you can squash immediately :)
| * | ||
| * - However, regardless of whether the normal component of the spatial | ||
| * velocity $n_iv^i$ is pointing outward or inward, the lorentz factor \f$W\f$ | ||
| * is copied into ghost zone without any modification. |
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Maybe write out (briefly) the justification we had for this?
| const Scalar<DataVector>& interior_lapse, | ||
| const tnsr::II<DataVector, 3, Frame::Inertial>& | ||
| interior_inv_spatial_metric) { | ||
| const size_t vector_size = get(interior_rest_mass_density).size(); |
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vector_size -> number_of_grid_points
| auto& exterior_divergence_cleaning_field = | ||
| get<::Tags::TempScalar<2>>(temp_buffer); | ||
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| determinant_and_inverse(make_not_null(&sqrt_det_spatial_metric), |
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Is it not possible to get these two from the interior? If not, that's fine, just curious :)
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Turns out.. it can 😂
I pushed this change as a fixup since it comes with nontrivial change of codes
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Squashed fixes to the first two comments and pushed a fixup for the third one. |
nilsdeppe
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Sep 2, 2022
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Looks good, one comment, you can squash that in right away :)
tests/Unit/Evolution/Systems/GrMhd/ValenciaDivClean/BoundaryConditions/Test_FreeOutflow.cpp
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nilsdeppe
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Sep 6, 2022
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