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annotate src/BoundaryConditions/sat.jl @ 1599:37b05221beda feature/boundary_conditions

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Review
author Jonatan Werpers <jonatan@werpers.com>
date Wed, 29 May 2024 22:35:08 +0200
parents abc5cc0aec94
children 3e7438e2a033
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1 """
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2 sat_tensors(op, grid, bc::BoundaryCondition, params...)
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3
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4 The tensor and boundary operator used to construct a simultaneous-approximation-term
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5 for imposing `bc` related to `op`.
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6
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7 For `sat_op, L = sat_tensors(...)` then `SAT = sat_op*(L*u - g)` where `g`
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8 is the boundary data.
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9 """
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10 function sat_tensors end
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11 # REVIEW: Rename `sat_op` to `penalty_tensor`?
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13
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14 """
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15 sat(op, grid, bc::BoundaryCondition, params...)
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16
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17 Simultaneous-Approximation-Term for a general `bc` to `op`.
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18 Returns a function `SAT(u,g)` weakly imposing `bc` when added to `op*u`.
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20 `op` must implement the function `sat_tensors`.
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21 """
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22 function sat(op, grid, bc::BoundaryCondition, params...)
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23 sat_op, L = sat_tensors(op, grid, bc, params...)
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24 return SAT(u, g) = sat_op*(L*u - g)
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25 end