LORENE
cmp_pde_frontiere.C
1/*
2 * Copyright (c) 2000-2001 Philippe Grandclement
3 *
4 * This file is part of LORENE.
5 *
6 * LORENE is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
10 *
11 * LORENE is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with LORENE; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
19 *
20 */
21
22
23
24
25/*
26 * $Id: cmp_pde_frontiere.C,v 1.8 2016/12/05 16:17:49 j_novak Exp $
27 * $Log: cmp_pde_frontiere.C,v $
28 * Revision 1.8 2016/12/05 16:17:49 j_novak
29 * Suppression of some global variables (file names, loch, ...) to prevent redefinitions
30 *
31 * Revision 1.7 2014/10/13 08:52:48 j_novak
32 * Lorene classes and functions now belong to the namespace Lorene.
33 *
34 * Revision 1.6 2005/02/18 13:14:08 j_novak
35 * Changing of malloc/free to new/delete + suppression of some unused variables
36 * (trying to avoid compilation warnings).
37 *
38 * Revision 1.5 2004/11/23 12:49:58 f_limousin
39 * Intoduce function poisson_dir_neu(...) to solve a scalar poisson
40 * equation with a mixed boundary condition (Dirichlet + Neumann).
41 *
42 * Revision 1.4 2004/05/20 07:04:02 k_taniguchi
43 * Recovery of "->get_angu()" in the assertion of Map_af::poisson_frontiere
44 * because "limite" is the boundary value.
45 *
46 * Revision 1.3 2004/03/31 11:18:42 f_limousin
47 * Methods Map_et::poisson_interne, Map_af::poisson_interne and
48 * Cmp::poisson_neumann_interne have been implemented to solve the
49 * continuity equation for strange stars.
50 *
51 * Revision 1.2 2003/10/03 15:58:45 j_novak
52 * Cleaning of some headers
53 *
54 * Revision 1.1.1.1 2001/11/20 15:19:27 e_gourgoulhon
55 * LORENE
56 *
57 * Revision 2.6 2000/05/22 16:07:03 phil
58 * *** empty log message ***
59 *
60 * Revision 2.5 2000/05/22 16:03:48 phil
61 * ajout du cas dzpuis = 3
62 *
63 * Revision 2.4 2000/04/27 15:18:27 phil
64 * ajout des procedures relatives a la resolution dans une seule zone avec deux conditions limites.
65 *
66 * Revision 2.3 2000/03/31 15:59:54 phil
67 * gestion des cas ou la source est nulle.
68 *
69 * Revision 2.2 2000/03/20 13:08:53 phil
70 * *** empty log message ***
71 *
72 * Revision 2.1 2000/03/17 17:33:05 phil
73 * *** empty log message ***
74 *
75 * Revision 2.0 2000/03/17 17:25:08 phil
76 * *** empty log message ***
77 *
78 *
79 * $Header: /cvsroot/Lorene/C++/Source/Cmp/cmp_pde_frontiere.C,v 1.8 2016/12/05 16:17:49 j_novak Exp $
80 *
81 */
82
83// Header Lorene:
84#include "scalar.h"
85#include "param.h"
86#include "cmp.h"
87
88namespace Lorene {
89Mtbl_cf sol_poisson_frontiere(const Map_af&, const Mtbl_cf&, const Mtbl_cf&,
90 int, int, int, double = 0.,
91 double = 0.) ;
92
93Mtbl_cf sol_poisson_frontiere_double (const Map_af&, const Mtbl_cf&, const Mtbl_cf&,
94 const Mtbl_cf&, int) ;
95
96Mtbl_cf sol_poisson_interne(const Map_af&, const Mtbl_cf&, const Mtbl_cf&) ;
97
98Cmp Cmp::poisson_dirichlet (const Valeur& limite, int num_front) const {
99
100 Cmp resu(*mp) ;
101 mp->poisson_frontiere (*this, limite, 1, num_front, resu) ;
102 return resu ;
103}
104
105
106Cmp Cmp::poisson_neumann (const Valeur& limite, int num_front) const {
107
108 Cmp resu(*mp) ;
109 mp->poisson_frontiere (*this, limite, 2, num_front, resu) ;
110 return resu ;
111}
112
114 Param& par, Cmp& resu) const {
115
116 mp->poisson_interne (*this, limite, par, resu) ;
117 return resu ;
118}
119
120Cmp Cmp::poisson_frontiere_double (const Valeur& lim_func, const Valeur& lim_der,
121 int num_zone) const {
122 Cmp resu(*mp) ;
123 mp->poisson_frontiere_double (*this, lim_func, lim_der, num_zone, resu) ;
124 return resu ;
125}
126
127void Map_et::poisson_frontiere(const Cmp&, const Valeur&, int, int, Cmp&, double, double) const {
128 cout << "Procedure non implantee ! " << endl ;
129 abort() ;
130}
131
132void Map_et::poisson_frontiere_double (const Cmp&, const Valeur&, const Valeur&,
133 int, Cmp&) const {
134 cout << "Procedure non implantee ! " << endl ;
135 abort() ;
136}
137
138void Map_af::poisson_frontiere(const Cmp& source, const Valeur& limite,
139 int type_raccord, int num_front,
140 Cmp& pot, double fact_dir, double fact_neu) const {
141
142 assert(source.get_etat() != ETATNONDEF) ;
143 assert(source.get_mp()->get_mg() == mg) ;
144 assert(pot.get_mp()->get_mg() == mg) ;
145
146 assert( source.check_dzpuis(2) || source.check_dzpuis(4)
147 || source.check_dzpuis(3)) ;
148 assert ((type_raccord == 1) || (type_raccord==2)|| (type_raccord==3)) ;
149 int dzpuis ;
150
151 if (source.dz_nonzero()){
152 dzpuis = source.get_dzpuis() ;
153 }
154 else{
155 dzpuis = 4 ;
156 }
157
158 // Spherical harmonic expansion of the source
159 // ------------------------------------------
160
161 Valeur sourva = source.va ;
162 sourva.coef() ;
163 sourva.ylm() ;
164
165 // Pour gerer le cas ou source est dans ETAT_ZERO...
166 Mtbl_cf so_cf (sourva.get_mg(), sourva.base) ;
167 if (sourva.get_etat() == ETATZERO) {
168 so_cf.set_etat_zero() ;
169 }
170 else
171 so_cf = *sourva.c_cf ;
172
173
174 Valeur conditions (limite) ;
175 conditions.coef() ;
176 conditions.ylm() ; // spherical harmonic transforms
177
178 // Pour gerer le cas ou condition est dans ETAT_ZERO...
179 Mtbl_cf auxiliaire (conditions.get_mg(), conditions.base) ;
180 if (conditions.get_etat() == ETATZERO)
181 auxiliaire.set_etat_zero() ;
182 else
183 auxiliaire = *conditions.c_cf ;
184
185 Mtbl_cf resu (sourva.get_mg(), sourva.base) ;
186
187 if (type_raccord == 3){
188
189 // Call to the Mtbl_cf version
190 // ---------------------------
191 resu = sol_poisson_frontiere(*this, so_cf, auxiliaire,
192 type_raccord, num_front, dzpuis,
193 fact_dir, fact_neu) ;
194 }
195 else{
196 resu = sol_poisson_frontiere(*this, so_cf, auxiliaire,
197 type_raccord, num_front, dzpuis) ;
198 }
199
200 // Final result returned as a Cmp
201 // ------------------------------
202
203 pot.set_etat_zero() ; // to call Cmp::del_t().
204 pot.set_etat_qcq() ;
205 pot.va = resu ;
206 (pot.va).ylm_i() ; // On repasse en base standard.
207 pot.set_dzpuis(0) ;
208}
209
210
211void Map_af::poisson_frontiere_double (const Cmp& source, const Valeur& lim_func,
212 const Valeur& lim_der, int num_zone, Cmp& pot) const {
213
214 assert(source.get_etat() != ETATNONDEF) ;
215 assert(source.get_mp()->get_mg() == mg) ;
216 assert(pot.get_mp()->get_mg() == mg) ;
217 assert (source.get_mp()->get_mg()->get_angu() == lim_func.get_mg()) ;
218 assert (source.get_mp()->get_mg()->get_angu() == lim_der.get_mg()) ;
219
220 // Spherical harmonic expansion of the source
221 // ------------------------------------------
222
223 Valeur sourva = source.va ;
224 sourva.coef() ;
225 sourva.ylm() ;
226
227 // Pour gerer le cas ou source est dans ETAT_ZERO...
228 Mtbl_cf so_cf (sourva.get_mg(), sourva.base) ;
229 if (sourva.get_etat() == ETATZERO) {
230 so_cf.set_etat_zero() ;
231 }
232 else
233 so_cf = *sourva.c_cf ;
234
235
236 Valeur cond_func (lim_func) ;
237 cond_func.coef() ;
238 cond_func.ylm() ; // spherical harmonic transforms
239
240 // Pour gerer le cas ou condition est dans ETAT_ZERO...
241 Mtbl_cf auxi_func (cond_func.get_mg(), cond_func.base) ;
242 if (cond_func.get_etat() == ETATZERO)
243 auxi_func.set_etat_zero() ;
244 else
245 auxi_func = *cond_func.c_cf ;
246
247 Valeur cond_der (lim_der) ;
248 cond_der.coef() ;
249 cond_der.ylm() ; // spherical harmonic transforms
250
251 // Pour gerer le cas ou condition est dans ETAT_ZERO...
252 Mtbl_cf auxi_der (cond_der.get_mg(), cond_der.base) ;
253 if (cond_der.get_etat() == ETATZERO)
254 auxi_der.set_etat_zero() ;
255 else
256 auxi_der = *cond_der.c_cf ;
257
258
259
260 // Call to the Mtbl_cf version
261 // ---------------------------
262
263 Mtbl_cf resu = sol_poisson_frontiere_double (*this, so_cf, auxi_func,
264 auxi_der, num_zone) ;
265
266 // Final result returned as a Cmp
267 // ------------------------------
268
269 pot.set_etat_zero() ; // to call Cmp::del_t().
270 pot.set_etat_qcq() ;
271 pot.va = resu ;
272 (pot.va).ylm_i() ; // On repasse en base standard.
273}
274
275
276
277void Map_et::poisson_interne(const Cmp& source, const Valeur& limite,
278 Param& par, Cmp& uu) const {
279
280 assert(source.get_etat() != ETATNONDEF) ;
281 assert(source.get_mp() == this) ;
282
283 assert(uu.get_mp() == this) ;
284
285 int nz = mg->get_nzone() ;
286
287 //-------------------------------
288 // Computation of the prefactor a ---> Cmp apre
289 //-------------------------------
290
291 Mtbl unjj = 1 + srdrdt*srdrdt + srstdrdp*srstdrdp ;
292
293 Mtbl apre1(*mg) ;
294 apre1.set_etat_qcq() ;
295 for (int l=0; l<nz; l++) {
296 *(apre1.t[l]) = alpha[l]*alpha[l] ;
297 }
298
299 apre1 = apre1 * dxdr * dxdr * unjj ;
300
301 Cmp apre(*this) ;
302 apre = apre1 ;
303
304 Tbl amax0 = max(apre1) ; // maximum values in each domain
305
306 // The maximum values of a in each domain are put in a Mtbl
307 Mtbl amax1(*mg) ;
308 amax1.set_etat_qcq() ;
309 for (int l=0; l<nz; l++) {
310 *(amax1.t[l]) = amax0(l) ;
311 }
312
313 Cmp amax(*this) ;
314 amax = amax1 ;
315
316
317 //-------------------
318 // Initializations
319 //-------------------
320
321 int nitermax = par.get_int() ;
322 int& niter = par.get_int_mod() ;
323 double lambda = par.get_double() ;
324 double unmlambda = 1. - lambda ;
325 double precis = par.get_double(1) ;
326
327 Cmp& ssj = par.get_cmp_mod() ;
328
329 Cmp ssjm1 = ssj ;
330 Cmp ssjm2 = ssjm1 ;
331
332 Valeur& vuu = uu.va ;
333
334 Valeur vuujm1(*mg) ;
335 if (uu.get_etat() == ETATZERO) {
336 vuujm1 = 1 ; // to take relative differences
337 vuujm1.set_base( vuu.base ) ;
338 }
339 else{
340 vuujm1 = vuu ;
341 }
342
343 // Affine mapping for the Laplacian-tilde
344
345 Map_af mpaff(*this) ;
346 Param par_nul ;
347
348 cout << "Map_et::poisson : relat. diff. u^J <-> u^{J-1} : " << endl ;
349
350//==========================================================================
351//==========================================================================
352// Start of iteration
353//==========================================================================
354//==========================================================================
355
356 Tbl tdiff(nz) ;
357 niter = 0 ;
358
359 do {
360
361 //====================================================================
362 // Computation of R(u) (the result is put in uu)
363 //====================================================================
364
365
366 //-----------------------
367 // First operations on uu
368 //-----------------------
369
370 Valeur duudx = (uu.va).dsdx() ; // d/dx
371
372 const Valeur& d2uudtdx = duudx.dsdt() ; // d^2/dxdtheta
373
374 const Valeur& std2uudpdx = duudx.stdsdp() ; // 1/sin(theta) d^2/dxdphi
375
376 //------------------
377 // Angular Laplacian
378 //------------------
379
380 Valeur sxlapang = uu.va ;
381
382 sxlapang.ylm() ;
383
384 sxlapang = sxlapang.lapang() ;
385
386 sxlapang = sxlapang.sx() ; // Lap_ang(uu) /x in the nucleus
387
388 //---------------------------------------------------------------
389 // Computation of
390 // [ 2 /(dRdx) ( A - 1 ) duu/dx + 1/R (B - 1) Lap_ang(uu) ] / x
391 //
392 // with A = 1/(dRdx) R/(x+beta_l/alpha_l) unjj
393 // B = [1/(dRdx) R/(x+beta_l/alpha_l)]^2 unjj
394 //
395 // The result is put in uu (via vuu)
396 //---------------------------------------------------------------
397
398 Valeur varduudx = duudx ;
399
400 uu.set_etat_qcq() ;
401
402 Base_val sauve_base = varduudx.base ;
403
404 vuu = 2. * dxdr * ( rsxdxdr * unjj - 1.) * varduudx
405 + ( rsxdxdr*rsxdxdr * unjj - 1.) * xsr * sxlapang ;
406
407 vuu.set_base(sauve_base) ;
408
409 vuu = vuu.sx() ;
410
411 //---------------------------------------
412 // Computation of R(u)
413 //
414 // The result is put in uu (via vuu)
415 //---------------------------------------
416
417
418 sauve_base = vuu.base ;
419
420 vuu = xsr * vuu
421 + 2. * dxdr * ( sr2drdt * d2uudtdx
422 + sr2stdrdp * std2uudpdx ) ;
423
424 vuu += dxdr * ( lapr_tp + dxdr * (
425 dxdr* unjj * d2rdx2
426 - 2. * ( sr2drdt * d2rdtdx + sr2stdrdp * sstd2rdpdx ) )
427 ) * duudx ;
428
429 vuu.set_base(sauve_base) ;
430
431 //====================================================================
432 // Computation of the effective source s^J of the ``affine''
433 // Poisson equation
434 //====================================================================
435
436 ssj = lambda * ssjm1 + unmlambda * ssjm2 ;
437
438 ssj = ( source + uu + (amax - apre) * ssj ) / amax ;
439
440 (ssj.va).set_base((source.va).base) ;
441
442 //====================================================================
443 // Resolution of the ``affine'' Poisson equation
444 //====================================================================
445
446 mpaff.poisson_interne(ssj, limite, par_nul, uu) ;
447
448 tdiff = diffrel(vuu, vuujm1) ;
449
450 cout << " step " << niter << " : " ;
451 cout << tdiff(0) << " " ;
452
453 cout << endl ;
454
455 //=================================
456 // Updates for the next iteration
457 //=================================
458
459 ssjm2 = ssjm1 ;
460 ssjm1 = ssj ;
461 vuujm1 = vuu ;
462
463 niter++ ;
464
465 } // End of iteration
466 while ( (tdiff(0) > precis) && (niter < nitermax) ) ;
467
468//==========================================================================
469//==========================================================================
470// End of iteration
471//==========================================================================
472//==========================================================================
473
474}
475
476
477void Map_af::poisson_interne(const Cmp& source, const Valeur& limite,
478 Param& , Cmp& pot) const {
479
480 assert(source.get_etat() != ETATNONDEF) ;
481 assert(source.get_mp()->get_mg() == mg) ;
482 assert(pot.get_mp()->get_mg() == mg) ;
483 assert (source.get_mp()->get_mg()->get_angu() == limite.get_mg()) ;
484
485 // Spherical harmonic expansion of the source
486 // ------------------------------------------
487
488 Valeur sourva = source.va ;
489 sourva.coef() ;
490 sourva.ylm() ;
491
492 // Pour gerer le cas ou source est dans ETAT_ZERO...
493 Mtbl_cf so_cf (sourva.get_mg(), sourva.base) ;
494 if (sourva.get_etat() == ETATZERO) {
495 so_cf.set_etat_zero() ;
496 }
497 else
498 so_cf = *sourva.c_cf ;
499
500 Valeur conditions (limite) ;
501 conditions.coef() ;
502 conditions.ylm() ; // spherical harmonic transforms
503
504
505 // Pour gerer le cas ou condition est dans ETAT_ZERO...
506 Mtbl_cf auxiliaire (conditions.get_mg(), conditions.base) ;
507 if (conditions.get_etat() == ETATZERO)
508 auxiliaire.set_etat_zero() ;
509 else
510 auxiliaire = *conditions.c_cf ;
511
512 // Call to the Mtbl_cf version
513 // ---------------------------
514
515 Mtbl_cf resu = sol_poisson_interne(*this, so_cf, auxiliaire) ;
516
517 // Final result returned as a Cmp
518 // ------------------------------
519
520 pot.set_etat_zero() ; // to call Cmp::del_t().
521 pot.set_etat_qcq() ;
522 pot.va = resu ;
523 (pot.va).ylm_i() ; // On repasse en base standard.
524 pot.set_dzpuis(0) ;
525}
526
527}
Bases of the spectral expansions.
Definition base_val.h:325
Component of a tensorial field *** DEPRECATED : use class Scalar instead ***.
Definition cmp.h:446
const Map * mp
Reference mapping.
Definition cmp.h:451
Cmp(const Map &map)
Constructor from mapping.
Definition cmp.C:211
int get_etat() const
Returns the logical state.
Definition cmp.h:899
Valeur va
The numerical value of the Cmp.
Definition cmp.h:464
Cmp poisson_neumann_interne(const Valeur &, Param &par, Cmp &resu) const
Idem as Cmp::poisson_neumann , the boundary condition is on the radial derivative of the solution.
Cmp poisson_dirichlet(const Valeur &limite, int num) const
Is identicall to Cmp::poisson() .
void set_etat_qcq()
Sets the logical state to ETATQCQ (ordinary state).
Definition cmp.C:307
int get_dzpuis() const
Returns dzpuis.
Definition cmp.h:903
bool dz_nonzero() const
Returns true if the last domain is compactified and *this is not zero in this domain.
Definition cmp.C:663
void set_etat_zero()
Sets the logical state to ETATZERO (zero).
Definition cmp.C:292
void set_dzpuis(int)
Set a value to dzpuis.
Definition cmp.C:657
bool check_dzpuis(int dzi) const
Returns false if the last domain is compactified and *this is not zero in this domain and dzpuis is n...
Definition cmp.C:718
const Map * get_mp() const
Returns the mapping.
Definition cmp.h:901
Cmp poisson_neumann(const Valeur &, int) const
Idem as Cmp::poisson_dirichlet , the boundary condition being on the radial derivative of the solutio...
Affine radial mapping.
Definition map.h:2042
virtual void poisson_interne(const Cmp &source, const Valeur &limite, Param &par, Cmp &pot) const
Computes the solution of a Poisson equation in the shell, imposing a boundary condition at the surfac...
virtual void poisson_frontiere(const Cmp &, const Valeur &, int, int, Cmp &, double=0., double=0.) const
Solver of the Poisson equation with boundary condition for the affine mapping case.
virtual void poisson_frontiere_double(const Cmp &source, const Valeur &lim_func, const Valeur &lim_der, int num_zone, Cmp &pot) const
Solver of the Poisson equation with boundary condition for the affine mapping case,...
virtual void poisson_interne(const Cmp &source, const Valeur &limite, Param &par, Cmp &pot) const
Computes the solution of a Poisson equation in the shell .
virtual void poisson_frontiere(const Cmp &, const Valeur &, int, int, Cmp &, double=0., double=0.) const
Not yet implemented.
Coord rsxdxdr
in the nucleus; \ in the shells; \ in the outermost compactified domain.
Definition map.h:2852
double * alpha
Array (size: mg->nzone ) of the values of in each domain.
Definition map.h:2776
Coord d2rdx2
in the nucleus and in the non-compactified shells; \ in the compactified outer domain.
Definition map.h:1634
Coord sr2drdt
in the nucleus and in the non-compactified shells; \ in the compactified outer domain.
Definition map.h:1615
Coord srstdrdp
in the nucleus and in the non-compactified shells; \ in the compactified outer domain.
Definition map.h:1607
Coord d2rdtdx
in the nucleus and in the non-compactified shells; \ in the compactified outer domain.
Definition map.h:1655
Coord sstd2rdpdx
in the nucleus and in the non-compactified shells; \ in the compactified outer domain.
Definition map.h:1663
Coord lapr_tp
in the nucleus and in the non-compactified shells; \ in the compactified outer domain.
Definition map.h:1646
Coord sr2stdrdp
in the nucleus and in the non-compactified shells; \ in the compactified outer domain.
Definition map.h:1623
Coord srdrdt
in the nucleus and in the non-compactified shells; \ in the compactified outer domain.
Definition map.h:1599
Coord xsr
in the nucleus; \ 1/R in the non-compactified shells; \ in the compactified outer domain.
Definition map.h:1564
Coord dxdr
in the nucleus and in the non-compactified shells; \ in the compactified outer domain.
Definition map.h:1575
Coefficients storage for the multi-domain spectral method.
Definition mtbl_cf.h:196
void set_etat_zero()
Sets the logical state to ETATZERO (zero).
Definition mtbl_cf.C:291
Multi-domain array.
Definition mtbl.h:118
Tbl ** t
Array (size nzone ) of pointers on the Tbl 's.
Definition mtbl.h:132
void set_etat_qcq()
Sets the logical state to ETATQCQ (ordinary state).
Definition mtbl.C:302
Parameter storage.
Definition param.h:125
Cmp & get_cmp_mod(int position=0) const
Returns the reference of a modifiable Cmp stored in the list.
Definition param.C:1052
const int & get_int(int position=0) const
Returns the reference of a int stored in the list.
Definition param.C:295
const double & get_double(int position=0) const
Returns the reference of a double stored in the list.
Definition param.C:364
int & get_int_mod(int position=0) const
Returns the reference of a modifiable int stored in the list.
Definition param.C:433
Basic array class.
Definition tbl.h:161
Values and coefficients of a (real-value) function.
Definition valeur.h:297
const Valeur & sx() const
Returns (r -sampling = RARE ) \ Id (r sampling = FIN ) \ (r -sampling = UNSURR ).
Definition valeur_sx.C:113
const Valeur & stdsdp() const
Returns of *this.
int get_etat() const
Returns the logical state.
Definition valeur.h:760
void set_base(const Base_val &)
Sets the bases for spectral expansions (member base ).
Definition valeur.C:813
void ylm()
Computes the coefficients of *this.
Definition valeur_ylm.C:141
const Valeur & dsdt() const
Returns of *this.
Mtbl_cf * c_cf
Coefficients of the spectral expansion of the function.
Definition valeur.h:312
void coef() const
Computes the coeffcients of *this.
const Mg3d * get_mg() const
Returns the Mg3d on which the this is defined.
Definition valeur.h:763
Base_val base
Bases on which the spectral expansion is performed.
Definition valeur.h:315
const Valeur & lapang() const
Returns the angular Laplacian of *this.
Tbl diffrel(const Cmp &a, const Cmp &b)
Relative difference between two Cmp (norme version).
Definition cmp_math.C:507
Tbl max(const Cmp &)
Maximum values of a Cmp in each domain.
Definition cmp_math.C:438
Lorene prototypes.
Definition app_hor.h:67