Neko 0.9.1
A portable framework for high-order spectral element flow simulations
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tet_mesh.f90
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35module tet_mesh
36 use mesh
37 use tet
38 use point
39 use utils
40 implicit none
41 private
42
43 integer, public, parameter :: tet_msh_otpv = 1, tet_msh_fvtc = 2, &
44 tet_msh_svtc = 3
45
46 type, public :: tet_mesh_t
47 type(tet_t), allocatable :: el(:)
48 type(mesh_t), pointer :: msh
49 integer :: nelv
50 contains
51 procedure, pass(this) :: init => tet_mesh_init
52 procedure, pass(this) :: free => tet_mesh_free
53 end type tet_mesh_t
54
55contains
56
58 subroutine tet_mesh_init(this, msh, mthd)
59 class(tet_mesh_t), intent(inout) :: this
60 type(mesh_t), intent(in), target :: msh
61 integer, intent(in), optional :: mthd
62 integer :: bsct_mthd
63
64 call this%free()
65
66 this%msh => msh
67
68 if (present(mthd)) then
69 bsct_mthd = mthd
70 else
71 bsct_mthd = tet_msh_svtc
72 end if
73
74 if (bsct_mthd .eq. tet_msh_otpv) then
75 this%nelv = msh%nelv * 8
76 allocate(this%el(this%nelv))
77 call tet_mesh_bisect_otpv(this)
78 else if (bsct_mthd .eq. tet_msh_fvtc) then
79 this%nelv = msh%nelv * 5
80 allocate(this%el(this%nelv))
81 call tet_mesh_bisect_fvtc(this)
82 else if (bsct_mthd .eq. tet_msh_svtc) then
83 this%nelv = msh%nelv * 6
84 allocate(this%el(this%nelv))
85 call tet_mesh_bisect_svtc(this)
86 else
87 call neko_error('Invalid bisection strategy')
88 end if
89
90 end subroutine tet_mesh_init
91
93 subroutine tet_mesh_free(this)
94 class(tet_mesh_t), intent(inout) :: this
95
96 if (allocated(this%el)) then
97 deallocate(this%el)
98 end if
99
100 nullify(this%msh)
101
102 end subroutine tet_mesh_free
103
104 ! Bisect hexahedral mesh into a tetrahedral mesh using
105 ! one tet per vertex as described in,
106 ! P. D. Bello-Maldonado and P. F. Fischer
107 ! SIAM J. Sci. Comput., 41(5), S2–S18, 2019.
108 subroutine tet_mesh_bisect_otpv(tet_msh)
109 type(tet_mesh_t), intent(inout) :: tet_msh
110 integer :: i, j
111 type(point_t), pointer :: p1, p2, p3, p4
112
113 j = 0
114 do i = 1, tet_msh%msh%nelv
115
116 j = j + 1
117 p1 => tet_msh%msh%elements(i)%e%pts(1)%p
118 p2 => tet_msh%msh%elements(i)%e%pts(2)%p
119 p3 => tet_msh%msh%elements(i)%e%pts(5)%p
120 p4 => tet_msh%msh%elements(i)%e%pts(4)%p
121 call tet_msh%el(j)%init(j, p1, p2, p3, p4)
122
123 j = j + 1
124 p1 => tet_msh%msh%elements(i)%e%pts(1)%p
125 p2 => tet_msh%msh%elements(i)%e%pts(2)%p
126 p3 => tet_msh%msh%elements(i)%e%pts(3)%p
127 p4 => tet_msh%msh%elements(i)%e%pts(6)%p
128 call tet_msh%el(j)%init(j, p1, p2, p3, p4)
129
130 j = j + 1
131 p1 => tet_msh%msh%elements(i)%e%pts(4)%p
132 p2 => tet_msh%msh%elements(i)%e%pts(3)%p
133 p3 => tet_msh%msh%elements(i)%e%pts(2)%p
134 p4 => tet_msh%msh%elements(i)%e%pts(7)%p
135 call tet_msh%el(j)%init(j, p1, p2, p3, p4)
136
137 j = j + 1
138 p1 => tet_msh%msh%elements(i)%e%pts(4)%p
139 p2 => tet_msh%msh%elements(i)%e%pts(3)%p
140 p3 => tet_msh%msh%elements(i)%e%pts(8)%p
141 p4 => tet_msh%msh%elements(i)%e%pts(1)%p
142 call tet_msh%el(j)%init(j, p1, p2, p3, p4)
143
144 j = j + 1
145 p1 => tet_msh%msh%elements(i)%e%pts(1)%p
146 p2 => tet_msh%msh%elements(i)%e%pts(5)%p
147 p3 => tet_msh%msh%elements(i)%e%pts(6)%p
148 p4 => tet_msh%msh%elements(i)%e%pts(8)%p
149 call tet_msh%el(j)%init(j, p1, p2, p3, p4)
150
151 j = j + 1
152 p1 => tet_msh%msh%elements(i)%e%pts(2)%p
153 p2 => tet_msh%msh%elements(i)%e%pts(5)%p
154 p3 => tet_msh%msh%elements(i)%e%pts(6)%p
155 p4 => tet_msh%msh%elements(i)%e%pts(7)%p
156 call tet_msh%el(j)%init(j, p1, p2, p3, p4)
157
158 j = j + 1
159 p1 => tet_msh%msh%elements(i)%e%pts(3)%p
160 p2 => tet_msh%msh%elements(i)%e%pts(8)%p
161 p3 => tet_msh%msh%elements(i)%e%pts(7)%p
162 p4 => tet_msh%msh%elements(i)%e%pts(6)%p
163 call tet_msh%el(j)%init(j, p1, p2, p3, p4)
164
165 j = j + 1
166 p1 => tet_msh%msh%elements(i)%e%pts(4)%p
167 p2 => tet_msh%msh%elements(i)%e%pts(8)%p
168 p3 => tet_msh%msh%elements(i)%e%pts(7)%p
169 p4 => tet_msh%msh%elements(i)%e%pts(5)%p
170 call tet_msh%el(j)%init(j, p1, p2, p3, p4)
171
172 end do
173
174 end subroutine tet_mesh_bisect_otpv
175
177 subroutine tet_mesh_bisect_fvtc(tet_msh)
178 type(tet_mesh_t), intent(inout) :: tet_msh
179 integer :: i, j
180 type(point_t), pointer :: p1, p2, p3, p4
181
182 j = 0
183 do i = 1, tet_msh%msh%nelv
184
185 j = j + 1
186 p1 => tet_msh%msh%elements(i)%e%pts(1)%p
187 p2 => tet_msh%msh%elements(i)%e%pts(2)%p
188 p3 => tet_msh%msh%elements(i)%e%pts(3)%p
189 p4 => tet_msh%msh%elements(i)%e%pts(6)%p
190 call tet_msh%el(j)%init(j, p1, p2, p3, p4)
191
192 j = j + 1
193 p1 => tet_msh%msh%elements(i)%e%pts(1)%p
194 p2 => tet_msh%msh%elements(i)%e%pts(4)%p
195 p3 => tet_msh%msh%elements(i)%e%pts(3)%p
196 p4 => tet_msh%msh%elements(i)%e%pts(8)%p
197 call tet_msh%el(j)%init(j, p1, p2, p3, p4)
198
199 j = j + 1
200 p1 => tet_msh%msh%elements(i)%e%pts(3)%p
201 p2 => tet_msh%msh%elements(i)%e%pts(8)%p
202 p3 => tet_msh%msh%elements(i)%e%pts(7)%p
203 p4 => tet_msh%msh%elements(i)%e%pts(6)%p
204 call tet_msh%el(j)%init(j, p1, p2, p3, p4)
205
206 j = j + 1
207 p1 => tet_msh%msh%elements(i)%e%pts(1)%p
208 p2 => tet_msh%msh%elements(i)%e%pts(5)%p
209 p3 => tet_msh%msh%elements(i)%e%pts(8)%p
210 p4 => tet_msh%msh%elements(i)%e%pts(6)%p
211 call tet_msh%el(j)%init(j, p1, p2, p3, p4)
212
213 j = j + 1
214 p1 => tet_msh%msh%elements(i)%e%pts(8)%p
215 p2 => tet_msh%msh%elements(i)%e%pts(3)%p
216 p3 => tet_msh%msh%elements(i)%e%pts(1)%p
217 p4 => tet_msh%msh%elements(i)%e%pts(6)%p
218 call tet_msh%el(j)%init(j, p1, p2, p3, p4)
219 end do
220 end subroutine tet_mesh_bisect_fvtc
221
223 subroutine tet_mesh_bisect_svtc(tet_msh)
224 type(tet_mesh_t), intent(inout) :: tet_msh
225 integer :: i, j
226 type(point_t), pointer :: p1, p2, p3, p4
227
228 j = 0
229 do i = 1, tet_msh%msh%nelv
230
231 j = j + 1
232 p1 => tet_msh%msh%elements(i)%e%pts(5)%p
233 p2 => tet_msh%msh%elements(i)%e%pts(8)%p
234 p3 => tet_msh%msh%elements(i)%e%pts(1)%p
235 p4 => tet_msh%msh%elements(i)%e%pts(7)%p
236 call tet_msh%el(j)%init(j, p1, p2, p3, p4)
237
238 j = j + 1
239 p1 => tet_msh%msh%elements(i)%e%pts(5)%p
240 p2 => tet_msh%msh%elements(i)%e%pts(1)%p
241 p3 => tet_msh%msh%elements(i)%e%pts(7)%p
242 p4 => tet_msh%msh%elements(i)%e%pts(6)%p
243 call tet_msh%el(j)%init(j, p1, p2, p3, p4)
244
245 j = j + 1
246 p1 => tet_msh%msh%elements(i)%e%pts(8)%p
247 p2 => tet_msh%msh%elements(i)%e%pts(4)%p
248 p3 => tet_msh%msh%elements(i)%e%pts(7)%p
249 p4 => tet_msh%msh%elements(i)%e%pts(1)%p
250 call tet_msh%el(j)%init(j, p1, p2, p3, p4)
251
252 j = j + 1
253 p1 => tet_msh%msh%elements(i)%e%pts(1)%p
254 p2 => tet_msh%msh%elements(i)%e%pts(7)%p
255 p3 => tet_msh%msh%elements(i)%e%pts(2)%p
256 p4 => tet_msh%msh%elements(i)%e%pts(6)%p
257 call tet_msh%el(j)%init(j, p1, p2, p3, p4)
258
259 j = j + 1
260 p1 => tet_msh%msh%elements(i)%e%pts(1)%p
261 p2 => tet_msh%msh%elements(i)%e%pts(2)%p
262 p3 => tet_msh%msh%elements(i)%e%pts(7)%p
263 p4 => tet_msh%msh%elements(i)%e%pts(3)%p
264 call tet_msh%el(j)%init(j, p1, p2, p3, p4)
265
266 j = j + 1
267 p1 => tet_msh%msh%elements(i)%e%pts(1)%p
268 p2 => tet_msh%msh%elements(i)%e%pts(7)%p
269 p3 => tet_msh%msh%elements(i)%e%pts(3)%p
270 p4 => tet_msh%msh%elements(i)%e%pts(4)%p
271 call tet_msh%el(j)%init(j, p1, p2, p3, p4)
272
273 end do
274
275
276 end subroutine tet_mesh_bisect_svtc
277
278end module tet_mesh
utils::neko_error
Definition utils.f90:42
mesh
Defines a mesh.
Definition mesh.f90:34
point
Implements a point.
Definition point.f90:35
tet_mesh
Defines a tetrahedral mesh.
Definition tet_mesh.f90:35
tet_mesh::tet_mesh_bisect_svtc
subroutine tet_mesh_bisect_svtc(tet_msh)
Bisect each hexahedron into six tetrahedrons.
Definition tet_mesh.f90:224
tet_mesh::tet_mesh_bisect_otpv
subroutine tet_mesh_bisect_otpv(tet_msh)
Definition tet_mesh.f90:109
tet_mesh::tet_mesh_bisect_fvtc
subroutine tet_mesh_bisect_fvtc(tet_msh)
Bisect each hexahedron into five tetrahedrons.
Definition tet_mesh.f90:178
tet_mesh::tet_msh_otpv
integer, parameter, public tet_msh_otpv
Definition tet_mesh.f90:43
tet_mesh::tet_mesh_init
subroutine tet_mesh_init(this, msh, mthd)
Initialise a tetrahedral mesh based on a hexahedral mesh msh.
Definition tet_mesh.f90:59
tet_mesh::tet_mesh_free
subroutine tet_mesh_free(this)
Deallocate a tetrahedral mesh.
Definition tet_mesh.f90:94
tet_mesh::tet_msh_fvtc
integer, parameter, public tet_msh_fvtc
Definition tet_mesh.f90:43
tet_mesh::tet_msh_svtc
integer, parameter, public tet_msh_svtc
Definition tet_mesh.f90:43
tet
Defines a tetrahedral element.
Definition tet.f90:34
utils
Utilities.
Definition utils.f90:35
mesh::mesh_t
Definition mesh.f90:64
point::point_t
A point in with coordinates .
Definition point.f90:43
tet::tet_t
Tetrahedral element.
Definition tet.f90:63
tet_mesh::tet_mesh_t
Definition tet_mesh.f90:46