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annotate src/BoundaryConditions/boundary_condition.jl @ 1396:35840a0681d1 feature/boundary_conditions

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Start drafting new implemenentation of boundary conditions
author Vidar Stiernström <vidar.stiernstrom@it.uu.se>
date Wed, 26 Jul 2023 23:11:02 +0200
parents bdcdbd4ea9cd
children 481960ca366f
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1 """
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2 BoundaryCondition
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3
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4 A type for implementing data needed in order to impose a boundary condition.
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5 Subtypes refer to perticular types of boundary conditions, e.g. Neumann conditions.
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6 """
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7 abstract type BoundaryCondition end
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9 """
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10 id(::BoundaryCondition)
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11
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12 The boundary identifier of the BoundaryCondition.
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13 Must be implemented by subtypes.
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14 """
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15 function id end
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17 """
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18 data(::BoundaryCondition)
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20 If implemented, the data associated with the BoundaryCondition
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21 """
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22 function data end
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24 """
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25 discretize(::BoundaryData, boundary_grid)
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27 Returns an anonymous time-dependent function f, such that f(t) is
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28 a `LazyArray` holding the `BoundaryData` discretized on `boundary_grid`.
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29 """
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30 function discretize_data(grid, bc::BoundaryCondition)
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31 return eval_on(boundary_grid(grid, id(bc)), data(bc))
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32 end
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33
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34 struct NeumannCondition{DT} <: BoundaryCondition{DT}
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35 data::DT
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36 id::BoundaryIdentifier
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37 end
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38 id(bc::NeumannCondition) = bc.id
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39 data(bc::NeumannCondition) = bc.data
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40
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41 struct DirichletCondition{DT} <: BoundaryCondition{DT}
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42 data::DT
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43 id::BoundaryIdentifier
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44 end
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45 id(bc::NeumannCondition) = bc.id
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46 data(bc::DirichletCondition) = bc.data