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1 : : // *****************************************************************************
2 : : /*!
3 : : \file src/PDE/MultiMat/MultiMatIndexing.hpp
4 : : \copyright 2012-2015 J. Bakosi,
5 : : 2016-2018 Los Alamos National Security, LLC.,
6 : : 2019-2021 Triad National Security, LLC.
7 : : All rights reserved. See the LICENSE file for details.
8 : : \brief Multi-material system indexing functions
9 : : \details This file defines functions that return indices to specific
10 : : equations for the system of multi-material compressible hydrodynamics.
11 : : */
12 : : // *****************************************************************************
13 : : #ifndef MultiMatIndexing_h
14 : : #define MultiMatIndexing_h
15 : :
16 : : namespace inciter {
17 : :
18 : : /** @name Functions that compute indices for physics variables for MultiMat */
19 : : ///@{
20 : :
21 : : // The functions below must follow the signature of MultiMatIdxFn.
22 : :
23 : : //! Get the index of the required material volume fraction
24 : : //! \param[in] kmat Index of required material
25 : : //! \return Index of the required material volume fraction
26 : : inline std::size_t volfracIdx( std::size_t /*nmat*/, std::size_t kmat )
27 : : { return kmat; }
28 : :
29 : : //! Get the index of the required material continuity equation
30 : : //! \param[in] nmat Number of materials
31 : : //! \param[in] kmat Index of required material
32 : : //! \return Index of the required material continuity equation
33 : : inline std::size_t densityIdx( std::size_t nmat, std::size_t kmat )
34 [ + + ][ + + ]: 272414005 : { return (nmat+kmat); }
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35 : :
36 : : //! Get the index of the required momentum equation component
37 : : //! \param[in] nmat Number of materials
38 : : //! \param[in] idir Required component direction;
39 : : //! 0: X-component,
40 : : //! 1: Y-component,
41 : : //! 2: Z-component.
42 : : //! \return Index of the required momentum equation component
43 : : inline std::size_t momentumIdx( std::size_t nmat, std::size_t idir )
44 [ + - ][ - - ]: 77186345 : { return (2*nmat+idir); }
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45 : :
46 : : //! Get the index of the required material total energy equation
47 : : //! \param[in] nmat Number of materials
48 : : //! \param[in] kmat Index of required material
49 : : //! \return Index of the required material total energy equation
50 : : inline std::size_t energyIdx( std::size_t nmat, std::size_t kmat )
51 [ + - ][ + - ]: 220794537 : { return (2*nmat+3+kmat); }
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52 : :
53 : : //! Get the index of the required material deformation gradient equation
54 : : //! \param[in] nmat Number of materials
55 : : //! \param[in] ksld Index of required solid
56 : : //! \param[in] i Row-index of required tensor component
57 : : //! \param[in] j Column-index of required tensor component
58 : : //! \return Index of the required material deformation gradient equation
59 : : inline std::size_t deformIdx( std::size_t nmat, std::size_t ksld,
60 : : std::size_t i, std::size_t j )
61 [ - - ]: 0 : { return (2*nmat+3+nmat + 9*(ksld-1)+3*i+j); }
62 : :
63 : : //! Get the index of the required velocity component from vector of primitives
64 : : //! \param[in] nmat Number of materials
65 : : //! \param[in] idir Required component direction;
66 : : //! 0: X-component,
67 : : //! 1: Y-component,
68 : : //! 2: Z-component.
69 : : //! \return Index of the required velocity component from vector of primitives
70 : : inline std::size_t velocityIdx( std::size_t nmat, std::size_t idir )
71 [ + - ][ + - ]: 48033759 : { return nmat+idir; }
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72 : :
73 : : //! Get the index of the required material pressure from vector of primitives
74 : : //! \param[in] kmat Index of required material
75 : : //! \return Index of the required material pressure from vector of primitives
76 : : inline std::size_t pressureIdx( std::size_t /*nmat*/, std::size_t kmat )
77 : : { return kmat; }
78 : :
79 : : //! Get the index of the required material stress component from primitives
80 : : //! \param[in] nmat Number of materials
81 : : //! \param[in] ksld Index of required solid
82 : : //! \param[in] i Index of required stress component
83 : : //! \return Index of the required material Cauchy stress component from vector
84 : : //! of primitives
85 : : inline std::size_t stressIdx( std::size_t nmat, std::size_t ksld,
86 : : std::size_t i )
87 : 0 : { return (nmat+3 + 6*(ksld-1)+i); }
88 : :
89 : : //! \brief Get the index of the required DOF of material volume fraction from
90 : : //! the DG solution vector
91 : : //! \param[in] nmat Number of materials
92 : : //! \param[in] kmat Index of required material
93 : : //! \param[in] ndof Number of solution DOFs stored in DG solution vector
94 : : //! \param[in] idof Index of required solution DOF from DG solution vector
95 : : //! \return Index of the required material volume fraction
96 : : //! \details This function is used to get the index of the required DOF in the
97 : : //! solution vector, which is of type tk::Fields.
98 : : inline std::size_t volfracDofIdx( std::size_t nmat, std::size_t kmat,
99 : : std::size_t ndof, std::size_t idof )
100 [ + + ][ + - ]: 189808563 : { return volfracIdx(nmat, kmat)*ndof+idof; }
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101 : :
102 : : //! \brief Get the index of the required DOF of material continuity equation
103 : : //! from the DG solution vector
104 : : //! \param[in] nmat Number of materials
105 : : //! \param[in] kmat Index of required material
106 : : //! \param[in] ndof Number of solution DOFs stored in DG solution vector
107 : : //! \param[in] idof Index of required solution DOF from DG solution vector
108 : : //! \return Index of the required material continuity equation
109 : : //! \details This function is used to get the index of the required DOF in the
110 : : //! solution vector, which is of type tk::Fields.
111 : : inline std::size_t densityDofIdx( std::size_t nmat, std::size_t kmat,
112 : : std::size_t ndof, std::size_t idof )
113 [ + + ][ + - ]: 49207089 : { return densityIdx(nmat, kmat)*ndof+idof; }
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114 : :
115 : : //! \brief Get the index of the required DOF of momentum equation component from
116 : : //! the DG solution vector
117 : : //! \param[in] nmat Number of materials
118 : : //! \param[in] idir Required component direction;
119 : : //! 0: X-component,
120 : : //! 1: Y-component,
121 : : //! 2: Z-component.
122 : : //! \param[in] ndof Number of solution DOFs stored in DG solution vector
123 : : //! \param[in] idof Index of required solution DOF from DG solution vector
124 : : //! \return Index of the required momentum equation component
125 : : //! \details This function is used to get the index of the required DOF in the
126 : : //! solution vector, which is of type tk::Fields.
127 : : inline std::size_t momentumDofIdx( std::size_t nmat, std::size_t idir,
128 : : std::size_t ndof, std::size_t idof )
129 : 1719324 : { return momentumIdx(nmat, idir)*ndof+idof; }
130 : :
131 : : //! \brief Get the index of the required DOF of material total energy equation
132 : : //! from the DG solution vector
133 : : //! \param[in] nmat Number of materials
134 : : //! \param[in] kmat Index of required material
135 : : //! \param[in] ndof Number of solution DOFs stored in DG solution vector
136 : : //! \param[in] idof Index of required solution DOF from DG solution vector
137 : : //! \return Index of the required material total energy equation
138 : : //! \details This function is used to get the index of the required DOF in the
139 : : //! solution vector, which is of type tk::Fields.
140 : : inline std::size_t energyDofIdx( std::size_t nmat, std::size_t kmat,
141 : : std::size_t ndof, std::size_t idof )
142 [ + + ][ + - ]: 51693617 : { return energyIdx(nmat, kmat)*ndof+idof; }
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143 : :
144 : : //! \brief Get the index of the required DOF of material deformation gradient
145 : : //! equation from the DG solution vector
146 : : //! \param[in] nmat Number of materials
147 : : //! \param[in] ksld Index of required solid
148 : : //! \param[in] i Row-index of required tensor component
149 : : //! \param[in] j Column-index of required tensor component
150 : : //! \param[in] ndof Number of solution DOFs stored in DG solution vector
151 : : //! \param[in] idof Index of required solution DOF from DG solution vector
152 : : //! \return Index of the required material total energy equation
153 : : //! \details This function is used to get the index of the required DOF in the
154 : : //! solution vector, which is of type tk::Fields.
155 : : inline std::size_t deformDofIdx( std::size_t nmat, std::size_t ksld,
156 : : std::size_t i, std::size_t j, std::size_t ndof, std::size_t idof )
157 : 0 : { return deformIdx(nmat, ksld, i, j)*ndof+idof; }
158 : :
159 : : //! \brief Get the index of the required DOF of velocity component from the DG
160 : : //! vector of primitives
161 : : //! \param[in] nmat Number of materials
162 : : //! \param[in] idir Required component direction;
163 : : //! 0: X-component,
164 : : //! 1: Y-component,
165 : : //! 2: Z-component.
166 : : //! \param[in] ndof Number of solution DOFs stored in DG solution vector
167 : : //! \param[in] idof Index of required solution DOF from DG solution vector
168 : : //! \return Index of the required velocity component from vector of primitives
169 : : //! \details This function is used to get the index of the required DOF in the
170 : : //! solution vector, which is of type tk::Fields.
171 : : inline std::size_t velocityDofIdx( std::size_t nmat, std::size_t idir,
172 : : std::size_t ndof, std::size_t idof )
173 [ + - ]: 8812623 : { return velocityIdx(nmat, idir)*ndof+idof; }
174 : :
175 : : //! \brief Get the index of the required DOF of material pressure from the DG
176 : : //! vector of primitives
177 : : //! \param[in] nmat Number of materials
178 : : //! \param[in] kmat Index of required material
179 : : //! \param[in] ndof Number of solution DOFs stored in DG solution vector
180 : : //! \param[in] idof Index of required solution DOF from DG solution vector
181 : : //! \return Index of the required material pressure from vector of primitives
182 : : //! \details This function is used to get the index of the required DOF in the
183 : : //! solution vector, which is of type tk::Fields.
184 : : inline std::size_t pressureDofIdx( std::size_t nmat, std::size_t kmat,
185 : : std::size_t ndof, std::size_t idof )
186 [ + - ][ + - ]: 26579401 : { return pressureIdx(nmat, kmat)*ndof+idof; }
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187 : :
188 : : //! \brief Get the index of the required DOF of material stress component from
189 : : //! the DG vector of primitives
190 : : //! \param[in] nmat Number of materials
191 : : //! \param[in] ksld Index of required solid
192 : : //! \param[in] i Index of required stress component
193 : : //! \param[in] ndof Number of solution DOFs stored in DG solution vector
194 : : //! \param[in] idof Index of required solution DOF from DG solution vector
195 : : //! \return Index of the required material Cauchy stress component from vector
196 : : //! of primitives
197 : : //! \details This function is used to get the index of the required DOF in the
198 : : //! primitives vector, which is of type tk::Fields.
199 : : inline std::size_t stressDofIdx( std::size_t nmat, std::size_t ksld,
200 : : std::size_t i, std::size_t ndof, std::size_t idof )
201 : 0 : { return stressIdx(nmat, ksld, i)*ndof+idof; }
202 : :
203 : : inline bool matExists( tk::real volfrac )
204 : : { return (volfrac > 1e-10) ? true : false; }
205 : :
206 : : inline tk::real volfracPRelaxLim()
207 : : { return 1.0e-02; }
208 : :
209 : : //! \brief Get the index of the quantity vel[l]*g[i][j] computed inside the
210 : : //! Riemann flux solver.
211 : : //! \param[in] kmat Index of required material
212 : : //! \param[in] i Row of inverse deformation tensor
213 : : //! \param[in] j Column of inverse deformation tensor
214 : : //! \param[in] l Velocity component
215 : : //! \return Index of the quantity vel[l]*g[i][j] computed inside the
216 : : //! Riemann flux solver.
217 : : //! \details This function is used to get the index of the quantity
218 : : //! vel[l]*g[i][j] computed inside the Riemann flux solver.
219 : : inline std::size_t newSolidsAccFn( std::size_t kmat,
220 : : std::size_t i, std::size_t j, std::size_t l)
221 : : { return 3*9*kmat+3*(3*i+j)+l; }
222 : :
223 : : //! \brief Index for Cauchy stress components, since only the 6 independent
224 : : //! components are stored.
225 : : const std::array< std::array< std::size_t, 3 >, 3 > stressCmp{{
226 : : {{0, 3, 4}},
227 : : {{3, 1, 5}},
228 : : {{4, 5, 2}} }};
229 : :
230 : : //! Get the index of the required material deformation gradient equation
231 : : //! in the context of a list where only the g's of solid materials are present.
232 : : //! If one needs to access the deformation tensor within the state array one
233 : : //! should use deformIdx instead!
234 : : //! \param[in] ksld Index of required solid
235 : : //! \param[in] i Row-index of required tensor component
236 : : //! \param[in] j Column-index of required tensor component
237 : : //! \return Index of the required material deformation gradient equation
238 : : //! in the context of a list where only the g's of solid materials are present.
239 : : inline std::size_t solidTensorIdx( std::size_t ksld, std::size_t i, std::size_t j )
240 : 0 : { return 9*ksld+(3*i+j); }
241 : :
242 : :
243 : : //@}
244 : :
245 : : } //inciter::
246 : :
247 : : #endif // MultiMatIndexing_h
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