-
Notifications
You must be signed in to change notification settings - Fork 21
/
ref_phys.c
1514 lines (1355 loc) · 49.6 KB
/
ref_phys.c
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
/* Copyright 2014 United States Government as represented by the
* Administrator of the National Aeronautics and Space
* Administration. No copyright is claimed in the United States under
* Title 17, U.S. Code. All Other Rights Reserved.
*
* The refine platform is licensed under the Apache License, Version
* 2.0 (the "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
* http://www.apache.org/licenses/LICENSE-2.0.
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
* implied. See the License for the specific language governing
* permissions and limitations under the License.
*/
#include "ref_phys.h"
#include <math.h>
#include <string.h>
#include "ref_edge.h"
#include "ref_egads.h"
#include "ref_layer.h"
#include "ref_malloc.h"
#include "ref_math.h"
#include "ref_matrix.h"
#include "ref_part.h"
#include "ref_recon.h"
#include "ref_sort.h"
REF_STATUS ref_phys_flip_twod_yz(REF_NODE ref_node, REF_INT ldim,
REF_DBL *field) {
REF_INT node;
REF_DBL temp;
REF_INT nequ;
nequ = 0;
if (ldim > 5 && 0 == ldim % 5) nequ = 5;
if (ldim > 6 && 0 == ldim % 6) nequ = 6;
each_ref_node_valid_node(ref_node, node) {
if (ldim >= 5) {
temp = field[2 + ldim * node];
field[2 + ldim * node] = field[3 + ldim * node];
field[3 + ldim * node] = temp;
}
if (nequ > 0) {
temp = field[nequ + 2 + ldim * node];
field[nequ + 2 + ldim * node] = field[nequ + 3 + ldim * node];
field[nequ + 3 + ldim * node] = temp;
}
}
return REF_SUCCESS;
}
REF_STATUS ref_phys_make_primitive(REF_DBL *conserved, REF_DBL *primitive) {
REF_DBL rho, u, v, w, p, e;
REF_DBL gamma = 1.4;
rho = conserved[0];
u = conserved[1] / conserved[0];
v = conserved[2] / conserved[0];
w = conserved[3] / conserved[0];
e = conserved[4];
p = (gamma - 1.0) * (e - 0.5 * rho * (u * u + v * v + w * w));
primitive[0] = rho;
primitive[1] = u;
primitive[2] = v;
primitive[3] = w;
primitive[4] = p;
return REF_SUCCESS;
}
REF_STATUS ref_phys_make_conserved(REF_DBL *primitive, REF_DBL *conserved) {
REF_DBL rho, u, v, w, p, e;
REF_DBL gamma = 1.4;
rho = primitive[0];
u = primitive[1];
v = primitive[2];
w = primitive[3];
p = primitive[4];
e = p / (gamma - 1.0) + 0.5 * rho * (u * u + v * v + w * w);
conserved[0] = rho;
conserved[1] = rho * u;
conserved[2] = rho * v;
conserved[3] = rho * w;
conserved[4] = e;
return REF_SUCCESS;
}
REF_STATUS ref_phys_entropy_adjoint(REF_DBL *primitive, REF_DBL *dual) {
REF_DBL rho, u, v, w, p, s, vel2;
REF_DBL gamma = 1.4;
rho = primitive[0];
u = primitive[1];
v = primitive[2];
w = primitive[3];
p = primitive[4];
/* entropy adjoint, Equ. (11), AIAA 2009-3790 */
s = log(p / pow(rho, gamma));
vel2 = u * u + v * v + w * w;
dual[0] = (gamma - s) / (gamma - 1.0) - 0.5 * rho * vel2 / p;
dual[1] = rho * u / p;
dual[2] = rho * v / p;
dual[3] = rho * w / p;
dual[4] = -rho / p;
return REF_SUCCESS;
}
REF_STATUS ref_phys_entropy_flux(REF_DBL *primitive, REF_DBL *flux) {
REF_DBL rho, u, v, w, p, s, U;
REF_DBL gamma = 1.4;
rho = primitive[0];
u = primitive[1];
v = primitive[2];
w = primitive[3];
p = primitive[4];
s = log(p / pow(rho, gamma));
U = -rho * s / (gamma - 1.0);
flux[0] = U * u;
flux[1] = U * v;
flux[2] = U * w;
return REF_SUCCESS;
}
REF_STATUS ref_phys_euler(REF_DBL *state, REF_DBL *direction, REF_DBL *flux) {
REF_DBL rho, u, v, w, p, e, speed;
REF_DBL gamma = 1.4;
rho = state[0];
u = state[1];
v = state[2];
w = state[3];
p = state[4];
e = p / (gamma - 1.0) + 0.5 * rho * (u * u + v * v + w * w);
speed = u * direction[0] + v * direction[1] + w * direction[2];
flux[0] = rho * speed;
flux[1] = rho * speed * u + p * direction[0];
flux[2] = rho * speed * v + p * direction[1];
flux[3] = rho * speed * w + p * direction[2];
flux[4] = speed * (e + p);
return REF_SUCCESS;
}
/* I do like CFD, vol 2, page 77, (3.6.8) */
REF_STATUS ref_phys_euler_jac(REF_DBL *state, REF_DBL *direction,
REF_DBL *dflux_dcons) {
REF_DBL rho, u, v, w, p, q2, e, qn;
REF_DBL gamma = 1.4;
REF_DBL K, H;
REF_DBL nx, ny, nz;
nx = direction[0];
ny = direction[1];
nz = direction[2];
rho = state[0];
u = state[1];
v = state[2];
w = state[3];
p = state[4];
K = gamma - 1;
q2 = (u * u + v * v + w * w);
e = p / K + 0.5 * rho * q2;
H = (e + p) / rho;
qn = u * nx + v * ny + w * nz;
dflux_dcons[0 + 0 * 5] = 0.0;
dflux_dcons[1 + 0 * 5] = 0.5 * K * q2 * nx - u * qn;
dflux_dcons[2 + 0 * 5] = 0.5 * K * q2 * ny - v * qn;
dflux_dcons[3 + 0 * 5] = 0.5 * K * q2 * nz - w * qn;
dflux_dcons[4 + 0 * 5] = (0.5 * K * q2 - H) * qn;
dflux_dcons[0 + 1 * 5] = nx;
dflux_dcons[1 + 1 * 5] = u * nx - K * u * nx + qn;
dflux_dcons[2 + 1 * 5] = v * nx - K * u * ny;
dflux_dcons[3 + 1 * 5] = w * nx - K * u * nz;
dflux_dcons[4 + 1 * 5] = H * nx - K * u * qn;
dflux_dcons[0 + 2 * 5] = ny;
dflux_dcons[1 + 2 * 5] = u * ny - K * v * nx;
dflux_dcons[2 + 2 * 5] = v * ny - K * v * ny + qn;
dflux_dcons[3 + 2 * 5] = w * ny - K * v * nz;
dflux_dcons[4 + 2 * 5] = H * ny - K * v * qn;
dflux_dcons[0 + 3 * 5] = nz;
dflux_dcons[1 + 3 * 5] = u * nz - K * w * nx;
dflux_dcons[2 + 3 * 5] = v * nz - K * w * ny;
dflux_dcons[3 + 3 * 5] = w * nz - K * w * nz + qn;
dflux_dcons[4 + 3 * 5] = H * nz - K * w * qn;
dflux_dcons[0 + 4 * 5] = 0;
dflux_dcons[1 + 4 * 5] = K * nx;
dflux_dcons[2 + 4 * 5] = K * ny;
dflux_dcons[3 + 4 * 5] = K * nz;
dflux_dcons[4 + 4 * 5] = gamma * qn;
return REF_SUCCESS;
}
REF_STATUS viscosity_law(REF_DBL t, REF_DBL reference_temp_k, REF_DBL *mu) {
REF_DBL sutherland_constant_k = 110.56;
REF_DBL sutherland_temp;
*mu = 1.0;
if (reference_temp_k > 0.0) {
sutherland_temp = sutherland_constant_k / reference_temp_k;
*mu = (1.0 + sutherland_temp) / (t + sutherland_temp) * t * sqrt(t);
}
return REF_SUCCESS;
}
REF_STATUS ref_phys_viscous(REF_DBL *state, REF_DBL *grad, REF_DBL turb,
REF_DBL mach, REF_DBL re, REF_DBL reference_temp,
REF_DBL *dir, REF_DBL *flux) {
REF_DBL rho, u, v, w, p, mu, mu_t, t;
REF_DBL gamma = 1.4;
REF_DBL pr = 0.72;
REF_DBL turbulent_pr = 0.90;
REF_DBL tau[3][3], qdot[3];
REF_INT i, j, k;
REF_DBL thermal_conductivity, dtdx;
rho = state[0];
u = state[1];
v = state[2];
w = state[3];
p = state[4];
t = gamma * p / rho;
RSS(viscosity_law(t, reference_temp, &mu), "sutherlands");
RSS(ref_phys_mut_sa(turb, rho, mu / rho, &mu_t), "eddy viscosity");
thermal_conductivity =
-(mu / (pr * (gamma - 1.0)) + mu_t / (turbulent_pr * (gamma - 1.0)));
mu += mu_t;
mu *= mach / re;
thermal_conductivity *= mach / re;
for (i = 0; i < 3; i++) {
for (j = 0; j < 3; j++) {
tau[i][j] = mu * (grad[j + 3 * (1 + i)] + grad[i + 3 * (1 + j)]);
}
for (k = 0; k < 3; k++) {
tau[i][i] += (-2.0 / 3.0) * mu * grad[k + 3 * (1 + k)];
}
}
for (i = 0; i < 3; i++) {
/* t = gamma * p / rho quotient rule */
dtdx = gamma * (grad[i + 3 * 4] * rho - p * grad[i + 3 * 0]) / rho / rho;
qdot[i] = thermal_conductivity * dtdx;
}
flux[0] = 0.0;
flux[1] = dir[0] * tau[0][0] + dir[1] * tau[0][1] + dir[2] * tau[0][2];
flux[2] = dir[0] * tau[1][0] + dir[1] * tau[1][1] + dir[2] * tau[1][2];
flux[3] = dir[0] * tau[2][0] + dir[1] * tau[2][1] + dir[2] * tau[2][2];
flux[4] = dir[0] * (u * tau[0][0] + v * tau[0][1] + w * tau[0][2] - qdot[0]) +
dir[1] * (u * tau[1][0] + v * tau[1][1] + w * tau[1][2] - qdot[1]) +
dir[2] * (u * tau[2][0] + v * tau[2][1] + w * tau[2][2] - qdot[2]);
return REF_SUCCESS;
}
REF_STATUS ref_phys_mut_sa(REF_DBL turb, REF_DBL rho, REF_DBL nu,
REF_DBL *mut_sa) {
if (turb > 0.0 && rho > 0.0 && nu > 0.0) {
REF_DBL chi, chi3, fv1;
REF_DBL cv1 = 7.1;
if (!ref_math_divisible(turb, nu)) return REF_DIV_ZERO;
chi = turb / nu;
chi3 = pow(chi, 3);
fv1 = chi3 / (chi3 + pow(cv1, 3));
*mut_sa = rho * turb * fv1;
} else {
*mut_sa = 0.0;
}
return REF_SUCCESS;
}
REF_STATUS ref_phys_convdiff(REF_DBL *state, REF_DBL *grad, REF_DBL diffusivity,
REF_DBL *dir, REF_DBL *flux) {
REF_DBL velocity[3];
velocity[0] = 1.0;
velocity[1] = 1.0;
velocity[2] = 1.0;
flux[0] = ref_math_dot(dir, velocity) * state[0];
flux[0] -= diffusivity * ref_math_dot(dir, grad);
return REF_SUCCESS;
}
REF_STATUS ref_phys_euler_dual_flux(REF_GRID ref_grid, REF_INT ldim,
REF_DBL *primitive_dual,
REF_DBL *dual_flux) {
REF_INT i, node, dir, nvar;
REF_DBL direction[3], state[5], flux[5];
RAS(0 == ldim % 2, "expect even ldim");
RAS(ldim >= 10, "expect ldim >= 10");
nvar = ldim / 2;
each_ref_node_valid_node(ref_grid_node(ref_grid), node) {
for (i = 0; i < 5; i++) {
dual_flux[i + 20 * node] = primitive_dual[nvar + i + ldim * node];
}
}
each_ref_node_valid_node(ref_grid_node(ref_grid), node) {
for (i = 0; i < 15; i++) {
dual_flux[5 + i + 20 * node] = 0.0;
}
}
each_ref_node_valid_node(ref_grid_node(ref_grid), node) {
for (i = 0; i < 5; i++) {
state[i] = primitive_dual[i + ldim * node];
}
for (dir = 0; dir < 3; dir++) {
direction[0] = 0;
direction[1] = 0;
direction[2] = 0;
direction[dir] = 1;
RSS(ref_phys_euler(state, direction, flux), "euler");
for (i = 0; i < 5; i++) {
dual_flux[i + 5 + 5 * dir + 20 * node] += flux[i];
}
}
}
return REF_SUCCESS;
}
REF_STATUS ref_phys_mask_strong_bcs(REF_GRID ref_grid, REF_DICT ref_dict,
REF_BOOL *replace, REF_INT ldim) {
REF_NODE ref_node = ref_grid_node(ref_grid);
REF_CELL ref_cell;
REF_INT cell, nodes[REF_CELL_MAX_SIZE_PER], cell_node;
REF_INT first, last, i, node, bc;
REF_INT nequ;
nequ = 0;
if (0 == ldim % 5) nequ = 5;
if (0 == ldim % 6) nequ = 6;
each_ref_node_valid_node(ref_node, node) {
for (i = 0; i < ldim; i++) {
replace[i + ldim * node] = REF_FALSE;
}
}
ref_cell = ref_grid_tri(ref_grid);
if (ref_grid_twod(ref_grid)) ref_cell = ref_grid_edg(ref_grid);
each_ref_cell_valid_cell_with_nodes(ref_cell, cell, nodes) {
bc = REF_EMPTY;
RXS(ref_dict_value(ref_dict, nodes[ref_cell_id_index(ref_cell)], &bc),
REF_NOT_FOUND, "bc");
each_ref_cell_cell_node(ref_cell, cell_node) {
node = nodes[cell_node];
if (4000 == bc) {
first = nequ + 1; /* first momentum */
last = nequ + 4; /* energy */
for (i = first; i <= last; i++) replace[i + ldim * node] = REF_TRUE;
if (6 == nequ) replace[nequ + 5 + ldim * node] = REF_TRUE; /* turb */
}
}
}
return REF_SUCCESS;
}
REF_STATUS ref_phys_read_mapbc(REF_DICT ref_dict, const char *mapbc_filename) {
FILE *file;
REF_INT i, n, id, type;
char buffer[1024];
file = fopen(mapbc_filename, "r");
if (NULL == (void *)file) printf("unable to open %s\n", mapbc_filename);
RNS(file, "unable to open file");
RAS(buffer == fgets(buffer, sizeof(buffer), file),
"unable to read number of lines");
RES(1, sscanf(buffer, "%d", &n), "unable to parse number of lines");
for (i = 0; i < n; i++) {
RES(1, fscanf(file, "%d", &id), "read id");
RES(1, fscanf(file, "%d", &type), "read type");
fgets(buffer, sizeof(buffer), file);
RSS(ref_dict_store(ref_dict, id, type), "store");
}
fclose(file);
return REF_SUCCESS;
}
REF_STATUS ref_phys_read_mapbc_token(REF_DICT ref_dict,
const char *mapbc_filename,
const char *token) {
FILE *file;
REF_INT i, n, id, type;
char name[1024];
file = fopen(mapbc_filename, "r");
if (NULL == (void *)file) printf("unable to open %s\n", mapbc_filename);
RNS(file, "unable to open file");
RES(1, fscanf(file, "%d", &n), "number of lines");
for (i = 0; i < n; i++) {
RES(1, fscanf(file, "%d", &id), "read id");
RES(1, fscanf(file, "%d", &type), "read type");
REIS(32, fgetc(file), "expected space");
fgets(name, sizeof(name), file);
/* printf(">%s<>%s<\n",name,token); */
if (0 == strncmp(name, token, strlen(token))) {
RSS(ref_dict_store(ref_dict, id, type), "store");
}
}
fclose(file);
return REF_SUCCESS;
}
REF_STATUS ref_phys_parse_tags(REF_DICT ref_dict, const char *tags) {
REF_INT id, type;
char *token, *copy;
RNS(tags, "tags string is NULL");
copy = strdup(tags);
RNS(copy, "tags copy is NULL");
type = 4000;
token = strtok(copy, ",");
while (token != NULL) {
id = atoi(token);
RSS(ref_dict_store(ref_dict, id, type), "store");
token = strtok(NULL, ",");
}
free(copy);
return REF_SUCCESS;
}
REF_STATUS ref_phys_av_tag_attributes(REF_DICT ref_dict, REF_GEOM ref_geom) {
const char *patch_type;
REF_INT id, type;
REF_STATUS ref_status;
each_ref_geom_face_id(ref_geom, id) {
ref_status = ref_egads_get_attribute(ref_geom, REF_GEOM_FACE, id,
"av:patch_type", &patch_type);
if (REF_SUCCESS == ref_status) {
if (0 == strcmp("noslipwall", patch_type)) {
type = 4000;
RSS(ref_dict_store(ref_dict, id, type), "store");
}
}
}
return REF_SUCCESS;
}
/* continuous galerkin spike
for (equ = 0; equ < nequ; equ++) {
each_ref_cell_valid_cell_with_nodes(ref_cell, cell, nodes) {
RSS(ref_node_tet_vol(ref_node, nodes, &cell_vol), "vol");
each_ref_cell_cell_node(ref_cell, cell_node) {
for (i = 0; i < 3; i++)
tri_nodes[i] = ref_cell_f2n(ref_cell, i, cell_node, cell);
RSS(ref_node_tri_normal(ref_node, tri_nodes, normal), "vol");
for (dir = 0; dir < 3; dir++) {
normal[dir] /= cell_vol;
}
for (i = 0; i < 4; i++) {
for (dir = 0; dir < 3; dir++) {
system[equ + nsystem * nodes[cell_node]] +=
0.25 *
dual_flux[equ + dir * nequ + nequ + ldim * nodes[i]] *
normal[dir] * cell_vol;
}
}
}
}
}
*/
REF_STATUS ref_phys_cc_fv_res(REF_GRID ref_grid, REF_INT nequ, REF_DBL *flux,
REF_DBL *res) {
REF_NODE ref_node = ref_grid_node(ref_grid);
REF_CELL ref_cell = ref_grid_tet(ref_grid);
REF_INT equ, dir, cell, cell_node, nodes[REF_CELL_MAX_SIZE_PER];
REF_DBL cell_vol, flux_grad[3];
REF_DBL tet_flux[4], *xyzs[4];
each_ref_cell_valid_cell_with_nodes(ref_cell, cell, nodes) {
each_ref_cell_cell_node(ref_cell, cell_node) {
xyzs[cell_node] = ref_node_xyz_ptr(ref_node, nodes[cell_node]);
}
RSS(ref_node_xyz_vol(xyzs, &cell_vol), "vol");
for (dir = 0; dir < 3; dir++) {
for (equ = 0; equ < nequ; equ++) {
each_ref_cell_cell_node(ref_cell, cell_node) {
tet_flux[cell_node] =
flux[equ + dir * nequ + 3 * nequ * nodes[cell_node]];
}
RSS(ref_node_xyz_grad(xyzs, tet_flux, flux_grad), "grad");
each_ref_cell_cell_node(ref_cell, cell_node) {
res[equ + nequ * nodes[cell_node]] +=
0.25 * flux_grad[dir] * cell_vol;
}
}
}
}
RSS(ref_node_ghost_dbl(ref_node, res, nequ), "ghost res");
return REF_SUCCESS;
}
REF_STATUS ref_phys_cc_fv_embed(REF_GRID ref_grid, REF_INT nequ, REF_DBL *flux,
REF_DBL *res) {
REF_NODE ref_node = ref_grid_node(ref_grid);
REF_CELL ref_cell = ref_grid_tet(ref_grid);
REF_INT i, equ, dir, cell, cell_node, cell_edge, nodes[REF_CELL_MAX_SIZE_PER];
REF_DBL cell_vol, flux_grad[3];
REF_DBL tet_flux[4], *xyzs[4];
REF_DBL macro_flux[10], macro_xyz[10][3];
REF_INT m2n[8][4] = {{0, 4, 5, 6}, {1, 8, 7, 4}, {2, 7, 9, 6}, {3, 6, 9, 8},
{4, 6, 9, 5}, {7, 8, 9, 4}, {7, 9, 5, 4}, {8, 6, 9, 4}};
REF_INT n0, n1, macro;
REF_RECON_RECONSTRUCTION recon = REF_RECON_L2PROJECTION;
REF_INT node;
REF_DBL sdot0, sdot1, *direqu, *fluxgrad;
REF_BOOL high_order = REF_TRUE;
/* macro node [edge]
3------9[5]--------2
/ \ . /
/ \ . /
/ \ . /
/ \ . /
/ .\ /
6[2] 5[1] 8[4] 7[3]
/ . \ /
/ . \ /
/. \/
0------4[0]--------1
*/
ref_malloc(direqu, ref_node_max(ref_grid_node(ref_grid)), REF_DBL);
ref_malloc(fluxgrad, 3 * ref_node_max(ref_grid_node(ref_grid)), REF_DBL);
for (dir = 0; dir < 3; dir++) {
for (equ = 0; equ < nequ; equ++) {
each_ref_node_valid_node(ref_node, node) {
direqu[node] = flux[equ + dir * nequ + 3 * nequ * node];
}
RSS(ref_recon_gradient(ref_grid, direqu, fluxgrad, recon), "grad");
each_ref_cell_valid_cell_with_nodes(ref_cell, cell, nodes) {
each_ref_cell_cell_node(ref_cell, cell_node) {
for (i = 0; i < 3; i++) {
macro_xyz[cell_node][i] =
ref_node_xyz(ref_node, i, nodes[cell_node]);
}
}
each_ref_cell_cell_edge(ref_cell, cell_edge) {
n0 = nodes[ref_cell_e2n_gen(ref_cell, 0, cell_edge)];
n1 = nodes[ref_cell_e2n_gen(ref_cell, 1, cell_edge)];
for (i = 0; i < 3; i++) {
macro_xyz[4 + cell_edge][i] = 0.5 * (ref_node_xyz(ref_node, i, n0) +
ref_node_xyz(ref_node, i, n1));
}
}
each_ref_cell_cell_node(ref_cell, cell_node) {
i = equ + dir * nequ + 3 * nequ * nodes[cell_node];
macro_flux[cell_node] = flux[i];
}
each_ref_cell_cell_edge(ref_cell, cell_edge) {
n0 = nodes[ref_cell_e2n_gen(ref_cell, 0, cell_edge)];
n1 = nodes[ref_cell_e2n_gen(ref_cell, 1, cell_edge)];
macro_flux[4 + cell_edge] =
0.5 * (flux[equ + dir * nequ + 3 * nequ * n0] +
flux[equ + dir * nequ + 3 * nequ * n1]);
sdot0 = 0.0;
sdot1 = 0.0;
for (i = 0; i < 3; i++) {
sdot0 += (ref_node_xyz(ref_node, i, n1) -
ref_node_xyz(ref_node, i, n0)) *
fluxgrad[i + 3 * n0];
sdot1 += (ref_node_xyz(ref_node, i, n1) -
ref_node_xyz(ref_node, i, n0)) *
fluxgrad[i + 3 * n1];
}
if (high_order) macro_flux[4 + cell_edge] += 0.125 * (sdot0 - sdot1);
}
for (macro = 0; macro < 8; macro++) {
each_ref_cell_cell_node(ref_cell, cell_node) {
xyzs[cell_node] = macro_xyz[m2n[macro][cell_node]];
tet_flux[cell_node] = macro_flux[m2n[macro][cell_node]];
}
RSS(ref_node_xyz_vol(xyzs, &cell_vol), "vol");
RSS(ref_node_xyz_grad(xyzs, tet_flux, flux_grad), "grad");
each_ref_cell_cell_node(ref_cell, cell_node) {
res[equ + nequ * nodes[cell_node]] +=
0.25 * flux_grad[dir] * cell_vol;
}
}
}
}
}
ref_free(fluxgrad);
ref_free(direqu);
RSS(ref_node_ghost_dbl(ref_node, res, nequ), "ghost res");
return REF_SUCCESS;
}
REF_STATUS ref_phys_spalding_yplus(REF_DBL uplus, REF_DBL *yplus) {
*yplus = uplus + 0.1108 * (exp(0.4 * uplus) - 1.0 - 0.4 * uplus);
return REF_SUCCESS;
}
REF_STATUS ref_phys_spalding_dyplus_duplus(REF_DBL uplus,
REF_DBL *dyplus_duplus) {
*dyplus_duplus = 1.0 + 0.1108 * (exp(0.4 * uplus) * 0.4 - 0.4);
return REF_SUCCESS;
}
/*
y = 0.1108 * exp(0.4 * u)
y / 0.1108 = exp(0.4 * u)
log(y / 0.1108) = 0.4 * u
log(y / 0.1108) / 0.4 = u
*/
REF_STATUS ref_phys_spalding_uplus(REF_DBL yplus, REF_DBL *uplus) {
REF_DBL u, y, error, dyplus_duplus;
REF_BOOL keep_going;
REF_INT iters;
u = yplus;
if (u > 12) u = log(yplus / 0.1108) / 0.4;
iters = 0;
keep_going = REF_TRUE;
while (keep_going) {
RSS(ref_phys_spalding_yplus(u, &y), "yplus");
error = y - yplus;
RSS(ref_phys_spalding_dyplus_duplus(u, &dyplus_duplus), "dyplus");
u = u - error / dyplus_duplus;
if (ref_math_divisible(error, y) && ABS(y) > 1.0e-3) {
keep_going = (ABS(error / y) > 1.0e-12);
} else {
keep_going = (ABS(error) > 1.0e-15);
}
iters++;
RAB(iters < 100, "iteration count exceeded",
{ printf(" y %e u %e err %e dydu %e\n", y, u, error, dyplus_duplus); });
}
*uplus = u;
return REF_SUCCESS;
}
REF_STATUS ref_phys_yplus_dist(REF_DBL mach, REF_DBL re, REF_DBL reference_t_k,
REF_DBL rho, REF_DBL t, REF_DBL dudn,
REF_DBL *yplus_dist) {
REF_DBL mu, nu, tau_wall, u_tau;
*yplus_dist = -1.0;
RSS(viscosity_law(t, reference_t_k, &mu), "sutherlands");
tau_wall = mu * dudn * mach / re;
u_tau = sqrt(tau_wall / rho);
nu = mu / rho;
*yplus_dist = nu / u_tau * (mach / re);
return REF_SUCCESS;
}
REF_STATUS ref_phys_yplus_lengthscale(REF_GRID ref_grid, REF_DBL mach,
REF_DBL re, REF_DBL reference_t_k,
REF_INT ldim, REF_DBL *field,
REF_DBL *lengthscale) {
REF_NODE ref_node = ref_grid_node(ref_grid);
REF_INT *hits;
REF_INT node;
each_ref_node_valid_node(ref_node, node) { lengthscale[node] = 0.0; }
ref_malloc_init(hits, ref_node_max(ref_node), REF_INT, 0);
if (ref_grid_twod(ref_grid)) {
REF_CELL edg_cell = ref_grid_edg(ref_grid);
REF_CELL tri_cell = ref_grid_tri(ref_grid);
REF_INT edg, tri;
REF_INT edg_nodes[REF_CELL_MAX_SIZE_PER];
REF_INT tri_nodes[REF_CELL_MAX_SIZE_PER];
REF_INT ntri, tri_list[2];
REF_INT off_node, on_node;
REF_DBL dn, du, u0, u1, dxyz[3], edg_norm[3], dudn;
REF_DBL rho, t, yplus_dist;
REF_DBL gamma = 1.4, press;
each_ref_cell_valid_cell_with_nodes(edg_cell, edg, edg_nodes) {
RSS(ref_layer_interior_seg_normal(ref_grid, edg, edg_norm), "edge norm");
RSS(ref_cell_list_with2(ref_grid_tri(ref_grid), edg_nodes[0],
edg_nodes[1], 2, &ntri, tri_list),
"tri with2");
REIS(1, ntri, "edg expects one tri");
tri = tri_list[0];
RSS(ref_cell_nodes(tri_cell, tri, tri_nodes), "tri nodes");
on_node = edg_nodes[0];
off_node = tri_nodes[0] + tri_nodes[1] + tri_nodes[2] - edg_nodes[0] -
edg_nodes[1];
u0 = sqrt(ref_math_dot(&(field[1 + ldim * on_node]),
&(field[1 + ldim * on_node])));
u1 = sqrt(ref_math_dot(&(field[1 + ldim * off_node]),
&(field[1 + ldim * off_node])));
dxyz[0] = ref_node_xyz(ref_node, 0, off_node) -
ref_node_xyz(ref_node, 0, on_node);
dxyz[1] = ref_node_xyz(ref_node, 1, off_node) -
ref_node_xyz(ref_node, 1, on_node);
dxyz[2] = ref_node_xyz(ref_node, 2, off_node) -
ref_node_xyz(ref_node, 2, on_node);
du = ABS(u0 - u1);
dn = ref_math_dot(dxyz, edg_norm);
dudn = ABS(du / dn);
rho = field[0 + ldim * on_node];
press = field[4 + ldim * on_node];
t = gamma * (press / rho);
RSS(ref_phys_yplus_dist(mach, re, reference_t_k, rho, t, dudn,
&yplus_dist),
"yplus dist");
lengthscale[edg_nodes[0]] += yplus_dist;
hits[edg_nodes[0]] += 1;
lengthscale[edg_nodes[1]] += yplus_dist;
hits[edg_nodes[1]] += 1;
}
} else {
RSS(REF_IMPLEMENT, "implement 3D");
}
each_ref_node_valid_node(ref_node, node) {
if (hits[node] > 0) {
lengthscale[node] /= (REF_DBL)hits[node];
}
}
ref_free(hits);
RSS(ref_node_ghost_dbl(ref_node, lengthscale, 1), "ghost lengthscale");
return REF_SUCCESS;
}
REF_STATUS ref_phys_normal_spacing(REF_GRID ref_grid, REF_DBL *normalspacing) {
REF_NODE ref_node = ref_grid_node(ref_grid);
REF_INT *hits;
REF_INT node;
each_ref_node_valid_node(ref_node, node) { normalspacing[node] = 0.0; }
ref_malloc_init(hits, ref_node_max(ref_node), REF_INT, 0);
if (ref_grid_twod(ref_grid)) {
REF_CELL edg_cell = ref_grid_edg(ref_grid);
REF_CELL tri_cell = ref_grid_tri(ref_grid);
REF_INT edg, tri;
REF_INT edg_nodes[REF_CELL_MAX_SIZE_PER];
REF_INT tri_nodes[REF_CELL_MAX_SIZE_PER];
REF_INT ntri, tri_list[2];
REF_INT off_node, on_node;
REF_DBL dn, dxyz[3], edg_norm[3];
each_ref_cell_valid_cell_with_nodes(edg_cell, edg, edg_nodes) {
RSS(ref_layer_interior_seg_normal(ref_grid, edg, edg_norm), "edge norm");
RSS(ref_cell_list_with2(ref_grid_tri(ref_grid), edg_nodes[0],
edg_nodes[1], 2, &ntri, tri_list),
"tri with2");
REIS(1, ntri, "edg expects one tri");
tri = tri_list[0];
RSS(ref_cell_nodes(tri_cell, tri, tri_nodes), "tri nodes");
on_node = edg_nodes[0];
off_node = tri_nodes[0] + tri_nodes[1] + tri_nodes[2] - edg_nodes[0] -
edg_nodes[1];
dxyz[0] = ref_node_xyz(ref_node, 0, off_node) -
ref_node_xyz(ref_node, 0, on_node);
dxyz[1] = ref_node_xyz(ref_node, 1, off_node) -
ref_node_xyz(ref_node, 1, on_node);
dxyz[2] = ref_node_xyz(ref_node, 2, off_node) -
ref_node_xyz(ref_node, 2, on_node);
dn = ref_math_dot(dxyz, edg_norm);
normalspacing[edg_nodes[0]] += dn;
hits[edg_nodes[0]] += 1;
normalspacing[edg_nodes[1]] += dn;
hits[edg_nodes[1]] += 1;
}
} else {
RSS(REF_IMPLEMENT, "implement 3D");
}
each_ref_node_valid_node(ref_node, node) {
if (hits[node] > 0) {
normalspacing[node] /= (REF_DBL)hits[node];
}
}
ref_free(hits);
RSS(ref_node_ghost_dbl(ref_node, normalspacing, 1), "ghost normalspacing");
return REF_SUCCESS;
}
REF_STATUS ref_phys_yplus_metric(REF_GRID ref_grid, REF_DBL *metric,
REF_DBL mach, REF_DBL re, REF_DBL temperature,
REF_DBL target, REF_INT ldim, REF_DBL *field,
REF_DICT ref_dict_bcs) {
REF_NODE ref_node = ref_grid_node(ref_grid);
REF_DBL *lengthscale, *new_log_metric;
REF_INT *hits;
REF_INT node, i;
ref_malloc_init(hits, ref_node_max(ref_node), REF_INT, 0);
ref_malloc_init(new_log_metric, 6 * ref_node_max(ref_node), REF_DBL, 0.0);
ref_malloc_init(lengthscale, ref_node_max(ref_node), REF_DBL, 0.0);
RSS(ref_phys_yplus_lengthscale(ref_grid, mach, re, temperature, ldim, field,
lengthscale),
"length scale");
if (ref_grid_twod(ref_grid)) {
REF_CELL edg_cell = ref_grid_edg(ref_grid);
REF_INT bc;
REF_INT edg, edg_nodes[REF_CELL_MAX_SIZE_PER];
REF_DBL edg_norm[3], h;
REF_DBL d[12], m[6], logm[6];
each_ref_cell_valid_cell_with_nodes(edg_cell, edg, edg_nodes) {
bc = REF_EMPTY;
RXS(ref_dict_value(ref_dict_bcs, edg_nodes[ref_cell_id_index(edg_cell)],
&bc),
REF_NOT_FOUND, "bc");
if (!ref_phys_wall_distance_bc(bc)) continue;
h = target * 0.5 *
(lengthscale[edg_nodes[0]] + lengthscale[edg_nodes[1]]);
RSS(ref_layer_interior_seg_normal(ref_grid, edg, edg_norm), "edge norm");
ref_matrix_eig(d, 0) = 1.0 / (h * h);
ref_matrix_vec(d, 0, 0) = edg_norm[0];
ref_matrix_vec(d, 1, 0) = edg_norm[1];
ref_matrix_vec(d, 2, 0) = edg_norm[2];
ref_matrix_eig(d, 2) = 1.0;
ref_matrix_vec(d, 0, 2) = 0.0;
ref_matrix_vec(d, 1, 2) = 0.0;
ref_matrix_vec(d, 2, 2) = 1.0;
ref_math_cross_product(ref_matrix_vec_ptr(d, 2), ref_matrix_vec_ptr(d, 0),
ref_matrix_vec_ptr(d, 1));
h = 0.5 * (ref_matrix_sqrt_vt_m_v(&(metric[6 * edg_nodes[0]]),
ref_matrix_vec_ptr(d, 1)) +
ref_matrix_sqrt_vt_m_v(&(metric[6 * edg_nodes[1]]),
ref_matrix_vec_ptr(d, 1)));
h = 1.0 / h;
ref_matrix_eig(d, 1) = 1.0 / (h * h);
RSS(ref_matrix_form_m(d, m), "form");
RSS(ref_matrix_log_m(m, logm), "form");
for (i = 0; i < 6; i++) {
new_log_metric[i + 6 * edg_nodes[0]] += logm[i];
}
hits[edg_nodes[0]] += 1;
for (i = 0; i < 6; i++) {
new_log_metric[i + 6 * edg_nodes[1]] += logm[i];
}
hits[edg_nodes[1]] += 1;
}
} else {
RSS(REF_IMPLEMENT, "implement 3D");
}
RSS(ref_node_ghost_dbl(ref_node, new_log_metric, 6), "ghost metric");
RSS(ref_node_ghost_int(ref_node, hits, 1), "ghost hits");
each_ref_node_valid_node(ref_node, node) {
if (hits[node] > 0) {
for (i = 0; i < 6; i++) {
new_log_metric[i + 6 * node] /= (REF_DBL)hits[node];
}
hits[node] = -1;
RSS(ref_matrix_exp_m(&(new_log_metric[6 * node]), &(metric[6 * node])),
"form");
}
}
{
REF_EDGE ref_edge;
REF_INT edge, node0, node1;
RSS(ref_edge_create(&ref_edge, ref_grid), "orig edges");
for (edge = 0; edge < ref_edge_n(ref_edge); edge++) {
node0 = ref_edge_e2n(ref_edge, 0, edge);
node1 = ref_edge_e2n(ref_edge, 1, edge);
if (0 <= hits[node0] && -1 == hits[node1]) {
for (i = 0; i < 6; i++) {
new_log_metric[i + 6 * node0] += new_log_metric[i + 6 * node1];
}
hits[node0] += 1;
}
if (0 <= hits[node1] && -1 == hits[node0]) {
for (i = 0; i < 6; i++) {
new_log_metric[i + 6 * node1] += new_log_metric[i + 6 * node0];
}
hits[node1] += 1;
}
}
ref_edge_free(ref_edge);
}
RSS(ref_node_ghost_dbl(ref_node, new_log_metric, 6), "ghost metric");
RSS(ref_node_ghost_int(ref_node, hits, 1), "ghost hits");
each_ref_node_valid_node(ref_node, node) {
if (hits[node] > 0) {
for (i = 0; i < 6; i++) {
new_log_metric[i + 6 * node] /= (REF_DBL)hits[node];
}
hits[node] = -2;
RSS(ref_matrix_exp_m(&(new_log_metric[6 * node]), &(metric[6 * node])),
"form");
}
}
RSS(ref_node_ghost_dbl(ref_node, metric, 6), "ghost metric");
ref_free(lengthscale);
ref_free(new_log_metric);
ref_free(hits);
return REF_SUCCESS;
}
REF_STATUS ref_phys_strong_sensor_bc(REF_GRID ref_grid, REF_DBL *scalar,
REF_DBL strong_value,
REF_DICT ref_dict_bcs) {
if (ref_grid_twod(ref_grid)) {
REF_CELL edg_cell = ref_grid_edg(ref_grid);
REF_INT bc;
REF_INT edg, edg_nodes[REF_CELL_MAX_SIZE_PER];
each_ref_cell_valid_cell_with_nodes(edg_cell, edg, edg_nodes) {
bc = REF_EMPTY;
RXS(ref_dict_value(ref_dict_bcs, edg_nodes[ref_cell_id_index(edg_cell)],
&bc),
REF_NOT_FOUND, "bc");
if (!ref_phys_wall_distance_bc(bc)) continue;
scalar[edg_nodes[0]] = strong_value;
scalar[edg_nodes[1]] = strong_value;
}
} else {
RSS(REF_IMPLEMENT, "implement 3D");
}
return REF_SUCCESS;
}
REF_STATUS ref_phys_minspac(REF_DBL reynolds_number, REF_DBL *yplus1) {
REF_DBL cf;
*yplus1 = -1.0;
/* laminar: 1.0 / ( sqrt(reynolds_number) *20.0 ); */
RAS(0.06 * reynolds_number > 0, "expected positive reynolds_number");
RAS(ref_math_divisible(0.445, pow(log(0.06 * reynolds_number), 2)),
"can not invert for cf");
cf = 0.455 / pow(log(0.06 * reynolds_number), 2);
RAS(ref_math_divisible(2.0, cf), "can not invert cf");
RAS(ref_math_divisible(sqrt(2.0 / cf), reynolds_number),
"can not invert reynolds_number for yplus1");
*yplus1 = sqrt(2.0 / cf) / reynolds_number;
return REF_SUCCESS;
}
REF_STATUS ref_phys_sa_surrogate(REF_DBL wall_distance, REF_DBL *nu_tilde) {
REF_DBL max_nu_tilde = 1000;
REF_DBL freestream_nu_tilde = 3;
REF_DBL boundary_layer_height = 0.1;
REF_DBL x, height;
*nu_tilde = 0.0;
if (wall_distance > 0.0) {
height = wall_distance / boundary_layer_height;
x = 4.0 * (height - height * height);
*nu_tilde = max_nu_tilde * x;
if (height > 0.5) *nu_tilde = MAX(*nu_tilde, freestream_nu_tilde);
}
return REF_SUCCESS;
}
/* use? Fast sweeping methods for eikonal equations on triangular meshes */
REF_STATUS ref_phys_signed_distance(REF_GRID ref_grid, REF_DBL *field,
REF_DBL *distance) {
REF_DBL node_min, node_max;
REF_CELL ref_cell = ref_grid_tri(ref_grid);
REF_NODE ref_node = ref_grid_node(ref_grid);
REF_DBL gradient[3], slope, dist, len;
REF_INT cell_node, cell, node, nodes[REF_CELL_MAX_SIZE_PER];
REF_INT *set;
REF_BOOL update;
REF_INT passes;
ref_malloc_init(set, ref_node_max(ref_node), REF_INT, 0);
each_ref_cell_valid_cell_with_nodes(ref_cell, cell, nodes) {
node_min = MIN(MIN(field[nodes[0]], field[nodes[1]]), field[nodes[2]]);
node_max = MAX(MAX(field[nodes[0]], field[nodes[1]]), field[nodes[2]]);
if (node_min <= 0.0 && 0.0 <= node_max) {
RSS(ref_node_tri_grad_nodes(ref_node, nodes, field, gradient), "grad");