bretherton_spine_mesh.h
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26#ifndef OOMPH_BRETHERTON_SPINE_MESH_HEADER
27#define OOMPH_BRETHERTON_SPINE_MESH_HEADER
28
29// The mesh
30#include "single_layer_spine_mesh.h"
31#include "simple_rectangular_quadmesh.h"
32
33namespace oomph
34{
35 //============================================================================
36 /// Mesh for 2D Bretherton problem -- based on single layer mesh. Templated
37 /// by spine-ified Navier-Stokes element type (e.g.
38 /// SpineElement<QCrouzeixRaviartElement<2> > and the corresponding
39 /// interface element (e.g.
40 /// SpineLineFluidInterfaceElement<SpineElement<QCrouzeixRaviartElement<2> > >
41 ///
42 //============================================================================
43 template<class ELEMENT, class INTERFACE_ELEMENT>
44 class BrethertonSpineMesh : public SingleLayerSpineMesh<ELEMENT>
45 {
46 public:
47 /// Constructor. Arguments:
48 /// - nx1: Number of elements along wall in deposited film region
49 /// - nx2: Number of elements along wall in horizontal transition region
50 /// - nx3: Number of elements along wall in channel region
51 /// - nhalf: Number of elements in vertical transition region (there are
52 /// twice as many elements across the channel)
53 /// - nh: Number of elements across the deposited film
54 /// - h: Thickness of deposited film
55 /// - zeta0: Start coordinate on wall
56 /// - zeta1: Wall coordinate of start of transition region
57 /// - zeta2: Wall coordinate of end of liquid filled region (inflow)
58 /// - lower_wall_pt: Pointer to geometric object that represents the lower
59 /// wall
60 /// - upper_wall_pt: Pointer to geometric object that represents the upper
61 /// wall
62 /// - time_stepper_pt: Pointer to timestepper; defaults to Steady
63 BrethertonSpineMesh(
64 const unsigned& nx1,
65 const unsigned& nx2,
66 const unsigned& nx3,
67 const unsigned& nh,
68 const unsigned& nhalf,
69 const double& h,
70 GeomObject* lower_wall_pt,
71 GeomObject* upper_wall_pt,
72 const double& zeta_start,
73 const double& zeta_transition_start,
74 const double& zeta_transition_end,
75 const double& zeta_end,
76 TimeStepper* time_stepper_pt = &Mesh::Default_TimeStepper);
77
78 /// Access functions for pointers to interface elements
79 FiniteElement*& interface_element_pt(const unsigned long& i)
80 {
81 return Interface_element_pt[i];
82 }
83
84 /// Number of elements on interface
85 unsigned long ninterface_element() const
86 {
87 return Interface_element_pt.size();
88 }
89
90 /// Access functions for pointers to elements in bulk
91 FiniteElement*& bulk_element_pt(const unsigned long& i)
92 {
93 return Bulk_element_pt[i];
94 }
95
96 /// Number of elements in bulk
97 unsigned long nbulk() const
98 {
99 return Bulk_element_pt.size();
100 }
101
102 /// Number of free-surface spines (i.e. excluding the dummy spines
103 /// in the channel region)
104 unsigned nfree_surface_spines()
105 {
106 unsigned np = this->finite_element_pt(0)->nnode_1d();
107 return 2 * (Nx1 + Nx2 + Nhalf) * (np - 1);
108 }
109
110 /// Recalculate the spine lengths after repositioning
111 double find_distance_to_free_surface(GeomObject* const& fs_geom_object_pt,
112 Vector<double>& initial_zeta,
113 const Vector<double>& spine_base,
114 const Vector<double>& spine_end);
115
116 /// Reposition the spines in response to changes in geometry
117 void reposition_spines(const double& zeta_lo_transition_start,
118 const double& zeta_lo_transition_end,
119 const double& zeta_up_transition_start,
120 const double& zeta_up_transition_end);
121
122 /// Pin all spines so the mesh can be used for computation
123 /// without free surfaces
124 void pin_all_spines()
125 {
126 unsigned n_spine = this->nspine();
127 for (unsigned i = 0; i < n_spine; i++)
128 {
129 this->spine_pt(i)->spine_height_pt()->pin(0);
130 }
131 }
132
133 /// General node update function implements pure virtual function
134 /// defined in SpineMesh base class and performs specific update
135 /// actions, depending on the node update fct id stored for each node.
136 void spine_node_update(SpineNode* spine_node_pt)
137 {
138 unsigned id = spine_node_pt->node_update_fct_id();
139 switch (id)
140 {
141 case 0:
142 spine_node_update_film_lower(spine_node_pt);
143 break;
144
145 case 1:
146 spine_node_update_horizontal_transition_lower(spine_node_pt);
147 break;
148
149 case 2:
150 spine_node_update_vertical_transition_lower(spine_node_pt);
151 break;
152
153 case 3:
154 spine_node_update_vertical_transition_upper(spine_node_pt);
155 break;
156
157 case 4:
158 spine_node_update_horizontal_transition_upper(spine_node_pt);
159 break;
160
161 case 5:
162 spine_node_update_film_upper(spine_node_pt);
163 break;
164
165 case 6:
166 spine_node_update_channel(spine_node_pt);
167 break;
168
169 default:
170 std::ostringstream error_message;
171 error_message << "Incorrect spine update id " << id << std::endl;
172
173 throw OomphLibError(error_message.str(),
174 OOMPH_CURRENT_FUNCTION,
175 OOMPH_EXCEPTION_LOCATION);
176 }
177 }
178
179
180 /// Pointer to control element (just under the symmetry line
181 /// near the bubble tip, so the bubble tip is located at
182 /// s=[1.0,1.0] in this element.
187
188
189 /// Read the value of the spine centre's vertical fraction
190 double spine_centre_fraction() const
191 {
192 return *Spine_centre_fraction_pt;
193 }
194
195 /// Set the pointer to the spine centre's vertial fraction
200
201 protected:
202 /// Update function for the deposited film region in the
203 /// lower part of the domain: Vertical spines
204 void spine_node_update_film_lower(SpineNode* spine_node_pt)
205 {
206 // Get fraction along the spine
207 double w = spine_node_pt->fraction();
208 // Get spine height
209 double h = spine_node_pt->h();
210
211 // Get wall coordinate
212 Vector<double> s_lo(1);
213 s_lo[0] = spine_node_pt->spine_pt()->geom_parameter(0);
214
215 // Get position vector to wall
216 Vector<double> r_wall_lo(2);
217 spine_node_pt->spine_pt()->geom_object_pt(0)->position(s_lo, r_wall_lo);
218
219 // Update the nodal position
220 spine_node_pt->x(0) = r_wall_lo[0];
221 spine_node_pt->x(1) = r_wall_lo[1] + w * h;
222 }
223
224
225 /// Update function for the horizontal transitition region in the
226 /// lower part of the domain: Spine points from wall to origin
227 void spine_node_update_horizontal_transition_lower(SpineNode* spine_node_pt)
228 {
229 // Get fraction along the spine
230 double w = spine_node_pt->fraction();
231 // Get spine height
232 double h = spine_node_pt->h();
233
234 // Get wall coordinate
235 Vector<double> s_lo(1);
236 s_lo[0] = spine_node_pt->spine_pt()->geom_parameter(0);
237
238 // Get position vector to wall
239 Vector<double> r_wall_lo(2);
240 spine_node_pt->spine_pt()->geom_object_pt(0)->position(s_lo, r_wall_lo);
241
242 // Get the spine centre
243 Vector<double> s_transition_lo(1), s_transition_up(1);
244 s_transition_lo[0] = spine_node_pt->spine_pt()->geom_parameter(1);
245 s_transition_up[0] = spine_node_pt->spine_pt()->geom_parameter(2);
246 Vector<double> r_transition_lo(2), r_transition_up(2);
247 spine_node_pt->spine_pt()->geom_object_pt(1)->position(s_transition_lo,
248 r_transition_lo);
249 spine_node_pt->spine_pt()->geom_object_pt(2)->position(s_transition_up,
250 r_transition_up);
251
252 Vector<double> spine_centre(2);
253 // Horizontal position is always halfway between the walls
254 spine_centre[0] = 0.5 * (r_transition_lo[0] + r_transition_up[0]);
255 // Vertical spine centre is given by fraction between the walls
256 spine_centre[1] =
257 r_transition_lo[1] +
258 spine_centre_fraction() * (r_transition_up[1] - r_transition_lo[1]);
259
260 // Get vector twoards spine origin
261 Vector<double> N(2);
262 N[0] = spine_centre[0] - r_wall_lo[0];
263 N[1] = spine_centre[1] - r_wall_lo[1];
264 double inv_length = 1.0 / sqrt(N[0] * N[0] + N[1] * N[1]);
265 // Update the nodal position
266 spine_node_pt->x(0) = r_wall_lo[0] + w * h * N[0] * inv_length;
267 spine_node_pt->x(1) = r_wall_lo[1] + w * h * N[1] * inv_length;
268 }
269
270
271 /// Update function for the vertical transitition region in the
272 /// lower part of the domain: Spine points to origin
273 void spine_node_update_vertical_transition_lower(SpineNode* spine_node_pt)
274 {
275 // Get fraction along the spine
276 double w = spine_node_pt->fraction();
277 // Get spine height
278 double h = spine_node_pt->h();
279
280 // Get local coordinates
281 Vector<double> s_lo(1), s_up(1);
282 s_lo[0] = spine_node_pt->spine_pt()->geom_parameter(0);
283 s_up[0] = spine_node_pt->spine_pt()->geom_parameter(1);
284
285 // Get position vector to wall
286 Vector<double> r_lo(2), r_up(2);
287 spine_node_pt->spine_pt()->geom_object_pt(0)->position(s_lo, r_lo);
288 spine_node_pt->spine_pt()->geom_object_pt(1)->position(s_up, r_up);
289
290 // Get fraction along vertical line across
291 double vertical_fraction = spine_node_pt->spine_pt()->geom_parameter(2);
292
293 // Origin of spine
294 Vector<double> S0(2);
295 S0[0] = r_lo[0] + vertical_fraction * (r_up[0] - r_lo[0]);
296 S0[1] = r_lo[1] + vertical_fraction * (r_up[1] - r_lo[1]);
297
298 // Get the spine centre
299 Vector<double> s_transition_lo(1), s_transition_up(1);
300 s_transition_lo[0] = spine_node_pt->spine_pt()->geom_parameter(3);
301 s_transition_up[0] = spine_node_pt->spine_pt()->geom_parameter(4);
302 Vector<double> r_transition_lo(2), r_transition_up(2);
303 spine_node_pt->spine_pt()->geom_object_pt(2)->position(s_transition_lo,
304 r_transition_lo);
305 spine_node_pt->spine_pt()->geom_object_pt(3)->position(s_transition_up,
306 r_transition_up);
307
308 Vector<double> spine_centre(2);
309 // Horizontal position is always halfway between the walls
310 spine_centre[0] = 0.5 * (r_transition_lo[0] + r_transition_up[0]);
311 // Vertical spine centre is given by fraction between the walls
312 spine_centre[1] =
313 r_transition_lo[1] +
314 spine_centre_fraction() * (r_transition_up[1] - r_transition_lo[1]);
315
316 // Get vector towards origin
317 Vector<double> N(2);
318 N[0] = spine_centre[0] - S0[0];
319 N[1] = spine_centre[1] - S0[1];
320
321 double inv_length = 1.0 / sqrt(N[0] * N[0] + N[1] * N[1]);
322 // Update the nodal position
323 spine_node_pt->x(0) = S0[0] + w * h * N[0] * inv_length;
324 spine_node_pt->x(1) = S0[1] + w * h * N[1] * inv_length;
325 }
326
327
328 /// Update function for the vertical transitition region in the
329 /// upper part of the domain: Spine points to origin
330 void spine_node_update_vertical_transition_upper(SpineNode* spine_node_pt)
331 {
332 // Get fraction along the spine
333 double w = spine_node_pt->fraction();
334 // Get spine height
335 double h = spine_node_pt->h();
336
337 // Get local coordinates
338 Vector<double> s_lo(1), s_up(1);
339 s_lo[0] = spine_node_pt->spine_pt()->geom_parameter(0);
340 s_up[0] = spine_node_pt->spine_pt()->geom_parameter(1);
341
342 // Get position vector to wall
343 Vector<double> r_lo(2), r_up(2);
344 spine_node_pt->spine_pt()->geom_object_pt(0)->position(s_lo, r_lo);
345 spine_node_pt->spine_pt()->geom_object_pt(1)->position(s_up, r_up);
346
347 // Get fraction along vertical line across
348 double vertical_fraction = spine_node_pt->spine_pt()->geom_parameter(2);
349
350 // Origin of spine
351 Vector<double> S0(2);
352 S0[0] = r_lo[0] + vertical_fraction * (r_up[0] - r_lo[0]);
353 S0[1] = r_lo[1] + vertical_fraction * (r_up[1] - r_lo[1]);
354
355 // Get the spine centre
356 Vector<double> s_transition_lo(1), s_transition_up(1);
357 s_transition_lo[0] = spine_node_pt->spine_pt()->geom_parameter(3);
358 s_transition_up[0] = spine_node_pt->spine_pt()->geom_parameter(4);
359 Vector<double> r_transition_lo(2), r_transition_up(2);
360 spine_node_pt->spine_pt()->geom_object_pt(2)->position(s_transition_lo,
361 r_transition_lo);
362 spine_node_pt->spine_pt()->geom_object_pt(3)->position(s_transition_up,
363 r_transition_up);
364
365 Vector<double> spine_centre(2);
366 // Horizontal position is always halfway between the walls
367 spine_centre[0] = 0.5 * (r_transition_lo[0] + r_transition_up[0]);
368 // Vertical spine centre is given by fraction between the walls
369 spine_centre[1] =
370 r_transition_lo[1] +
371 spine_centre_fraction() * (r_transition_up[1] - r_transition_lo[1]);
372
373 // Get vector towards origin
374 Vector<double> N(2);
375 N[0] = spine_centre[0] - S0[0];
376 N[1] = spine_centre[1] - S0[1];
377
378 double inv_length = 1.0 / sqrt(N[0] * N[0] + N[1] * N[1]);
379 // Update the nodal position
380 spine_node_pt->x(0) = S0[0] + w * h * N[0] * inv_length;
381 spine_node_pt->x(1) = S0[1] + w * h * N[1] * inv_length;
382 }
383
384
385 /// Update function for the horizontal transitition region in the
386 /// upper part of the domain: Spine points towards origin
387 void spine_node_update_horizontal_transition_upper(SpineNode* spine_node_pt)
388 {
389 // Get fraction along the spine
390 double w = spine_node_pt->fraction();
391 // Get spine height
392 double h = spine_node_pt->h();
393
394 // Get wall coordinate
395 Vector<double> s_up(1);
396 s_up[0] = spine_node_pt->spine_pt()->geom_parameter(0);
397
398 // Get position vector to wall
399 Vector<double> r_wall_up(2);
400 spine_node_pt->spine_pt()->geom_object_pt(0)->position(s_up, r_wall_up);
401
402 // Get the spine centre
403 Vector<double> s_transition_lo(1), s_transition_up(1);
404 s_transition_lo[0] = spine_node_pt->spine_pt()->geom_parameter(1);
405 s_transition_up[0] = spine_node_pt->spine_pt()->geom_parameter(2);
406 Vector<double> r_transition_lo(2), r_transition_up(2);
407 spine_node_pt->spine_pt()->geom_object_pt(1)->position(s_transition_lo,
408 r_transition_lo);
409 spine_node_pt->spine_pt()->geom_object_pt(2)->position(s_transition_up,
410 r_transition_up);
411
412 Vector<double> spine_centre(2);
413 // Horizontal position is always halfway between the walls
414 spine_centre[0] = 0.5 * (r_transition_lo[0] + r_transition_up[0]);
415 // Vertical spine centre is given by fraction between the walls
416 spine_centre[1] =
417 r_transition_lo[1] +
418 spine_centre_fraction() * (r_transition_up[1] - r_transition_lo[1]);
419
420 // Get vector towards origin
421 Vector<double> N(2);
422 N[0] = spine_centre[0] - r_wall_up[0];
423 N[1] = spine_centre[1] - r_wall_up[1];
424 double inv_length = 1.0 / sqrt(N[0] * N[0] + N[1] * N[1]);
425
426 // Update the nodal position
427 spine_node_pt->x(0) = r_wall_up[0] + w * h * N[0] * inv_length;
428 spine_node_pt->x(1) = r_wall_up[1] + w * h * N[1] * inv_length;
429 }
430
431
432 /// Update function for the deposited film region in the
433 /// upper part of the domain: Vertical spines
434 void spine_node_update_film_upper(SpineNode* spine_node_pt)
435 {
436 // Get fraction along the spine
437 double w = spine_node_pt->fraction();
438 // Get spine height
439 double h = spine_node_pt->h();
440
441 // Get wall coordinate
442 Vector<double> s_up(1);
443 s_up[0] = spine_node_pt->spine_pt()->geom_parameter(0);
444
445 // Get position vector to wall
446 Vector<double> r_wall_up(2);
447 spine_node_pt->spine_pt()->geom_object_pt(0)->position(s_up, r_wall_up);
448
449 // Update the nodal position
450 spine_node_pt->x(0) = r_wall_up[0];
451 spine_node_pt->x(1) = r_wall_up[1] - w * h;
452 }
453
454
455 /// Update function for the nodes in the channel region ahead
456 /// of the finger tip: Nodes are evenly distributed along vertical
457 /// lines between the top and bottom walls
458 void spine_node_update_channel(SpineNode* spine_node_pt)
459 {
460 // Get fraction along the spine
461 double w = spine_node_pt->fraction();
462
463 // Get upper and lower local coordinates
464 Vector<double> s_lo(1), s_up(1);
465 s_lo[0] = spine_node_pt->spine_pt()->geom_parameter(0);
466 s_up[0] = spine_node_pt->spine_pt()->geom_parameter(1);
467
468 // Get position vector to lower wall
469 Vector<double> r_lo(2), r_up(2);
470 spine_node_pt->spine_pt()->geom_object_pt(0)->position(s_lo, r_lo);
471 spine_node_pt->spine_pt()->geom_object_pt(1)->position(s_up, r_up);
472
473 // Update the nodal position
474 spine_node_pt->x(0) = r_lo[0] + w * (r_up[0] - r_lo[0]);
475 spine_node_pt->x(1) = r_lo[1] + w * (r_up[1] - r_lo[1]);
476 }
477
478
479 /// Initial reordering elements of the elements -- before
480 /// the channel mesh is added. Vertical stacks of elements, each topped by
481 /// their interface element -- this is (currently) identical to the
482 /// version in the SingleLayerSpineMesh but it's important
483 /// that the element reordering is maintained in exactly this form
484 /// for the rest of the mesh generation process to work properly.
485 /// Therefore we keep a copy of the function in here.
486 void initial_element_reorder();
487
488 /// Number of elements along wall in deposited film region
489 unsigned Nx1;
490
491 /// Number of elements along wall in horizontal transition region
492 unsigned Nx2;
493
494 /// Number of elements along wall in channel region
495 unsigned Nx3;
496
497 /// Number of elements in vertical transition region (there are
498 /// twice as many elements across the channel)
499 unsigned Nhalf;
500
501 /// Number of elements across the deposited film
502 unsigned Nh;
503
504 /// Thickness of deposited film
505 double H;
506
507 /// Pointer to geometric object that represents the upper wall
508 GeomObject* Upper_wall_pt;
509
510 /// Pointer to geometric object that represents the lower wall
511 GeomObject* Lower_wall_pt;
512
513 /// Start coordinate on wall
514 double Zeta_start;
515
516 /// Wall coordinate of end of liquid filled region (inflow)
517 double Zeta_end;
518
519 /// Wall coordinate of start of the transition region
520 double Zeta_transition_start;
521
522 /// Wall coordinate of end of transition region
523 double Zeta_transition_end;
524
525 /// Pointer to vertical fraction of the spine centre
526 double* Spine_centre_fraction_pt;
527
528 /// Default spine fraction
529 double Default_spine_centre_fraction;
530
531 /// Pointer to control element (just under the symmetry line
532 /// near the bubble tip; the bubble tip is located at s=[1.0,1.0]
533 /// in this element
534 ELEMENT* Control_element_pt;
535
536 /// Vector of pointers to element in the fluid layer
537 Vector<FiniteElement*> Bulk_element_pt;
538
539 /// Vector of pointers to interface elements
540 Vector<FiniteElement*> Interface_element_pt;
541 };
542
543} // namespace oomph
544
545#include "bretherton_spine_mesh.template.cc"
546#endif
bretherton_spine_mesh.template.cc
oomph::BrethertonSpineMesh
Mesh for 2D Bretherton problem – based on single layer mesh. Templated by spine-ified Navier-Stokes e...
Definition bretherton_spine_mesh.h:45
oomph::BrethertonSpineMesh::interface_element_pt
FiniteElement *& interface_element_pt(const unsigned long &i)
Access functions for pointers to interface elements.
Definition bretherton_spine_mesh.h:79
oomph::BrethertonSpineMesh::spine_node_update_film_lower
void spine_node_update_film_lower(SpineNode *spine_node_pt)
Update function for the deposited film region in the lower part of the domain: Vertical spines.
Definition bretherton_spine_mesh.h:204
oomph::BrethertonSpineMesh::Lower_wall_pt
GeomObject * Lower_wall_pt
Pointer to geometric object that represents the lower wall.
Definition bretherton_spine_mesh.h:511
oomph::BrethertonSpineMesh::spine_node_update_horizontal_transition_lower
void spine_node_update_horizontal_transition_lower(SpineNode *spine_node_pt)
Update function for the horizontal transitition region in the lower part of the domain: Spine points ...
Definition bretherton_spine_mesh.h:227
oomph::BrethertonSpineMesh::reposition_spines
void reposition_spines(const double &zeta_lo_transition_start, const double &zeta_lo_transition_end, const double &zeta_up_transition_start, const double &zeta_up_transition_end)
Reposition the spines in response to changes in geometry.
Definition bretherton_spine_mesh.template.cc:1148
oomph::BrethertonSpineMesh::Zeta_start
double Zeta_start
Start coordinate on wall.
Definition bretherton_spine_mesh.h:514
oomph::BrethertonSpineMesh::Zeta_transition_end
double Zeta_transition_end
Wall coordinate of end of transition region.
Definition bretherton_spine_mesh.h:523
oomph::BrethertonSpineMesh::Nhalf
unsigned Nhalf
Number of elements in vertical transition region (there are twice as many elements across the channel...
Definition bretherton_spine_mesh.h:499
oomph::BrethertonSpineMesh::Upper_wall_pt
GeomObject * Upper_wall_pt
Pointer to geometric object that represents the upper wall.
Definition bretherton_spine_mesh.h:508
oomph::BrethertonSpineMesh::Bulk_element_pt
Vector< FiniteElement * > Bulk_element_pt
Vector of pointers to element in the fluid layer.
Definition bretherton_spine_mesh.h:537
oomph::BrethertonSpineMesh::Nx2
unsigned Nx2
Number of elements along wall in horizontal transition region.
Definition bretherton_spine_mesh.h:492
oomph::BrethertonSpineMesh::Nx3
unsigned Nx3
Number of elements along wall in channel region.
Definition bretherton_spine_mesh.h:495
oomph::BrethertonSpineMesh::bulk_element_pt
FiniteElement *& bulk_element_pt(const unsigned long &i)
Access functions for pointers to elements in bulk.
Definition bretherton_spine_mesh.h:91
oomph::BrethertonSpineMesh::Default_spine_centre_fraction
double Default_spine_centre_fraction
Default spine fraction.
Definition bretherton_spine_mesh.h:529
oomph::BrethertonSpineMesh::set_spine_centre_fraction_pt
void set_spine_centre_fraction_pt(double *const &fraction_pt)
Set the pointer to the spine centre's vertial fraction.
Definition bretherton_spine_mesh.h:196
oomph::BrethertonSpineMesh::spine_node_update_film_upper
void spine_node_update_film_upper(SpineNode *spine_node_pt)
Update function for the deposited film region in the upper part of the domain: Vertical spines.
Definition bretherton_spine_mesh.h:434
oomph::BrethertonSpineMesh::H
double H
Thickness of deposited film.
Definition bretherton_spine_mesh.h:505
oomph::BrethertonSpineMesh::control_element_pt
ELEMENT * control_element_pt()
Pointer to control element (just under the symmetry line near the bubble tip, so the bubble tip is lo...
Definition bretherton_spine_mesh.h:183
oomph::BrethertonSpineMesh::nbulk
unsigned long nbulk() const
Number of elements in bulk.
Definition bretherton_spine_mesh.h:97
oomph::BrethertonSpineMesh::Nh
unsigned Nh
Number of elements across the deposited film.
Definition bretherton_spine_mesh.h:502
oomph::BrethertonSpineMesh::pin_all_spines
void pin_all_spines()
Pin all spines so the mesh can be used for computation without free surfaces.
Definition bretherton_spine_mesh.h:124
oomph::BrethertonSpineMesh::initial_element_reorder
void initial_element_reorder()
Initial reordering elements of the elements – before the channel mesh is added. Vertical stacks of el...
Definition bretherton_spine_mesh.template.cc:1019
oomph::BrethertonSpineMesh::spine_node_update_channel
void spine_node_update_channel(SpineNode *spine_node_pt)
Update function for the nodes in the channel region ahead of the finger tip: Nodes are evenly distrib...
Definition bretherton_spine_mesh.h:458
oomph::BrethertonSpineMesh::spine_centre_fraction
double spine_centre_fraction() const
Read the value of the spine centre's vertical fraction.
Definition bretherton_spine_mesh.h:190
oomph::BrethertonSpineMesh::spine_node_update_vertical_transition_upper
void spine_node_update_vertical_transition_upper(SpineNode *spine_node_pt)
Update function for the vertical transitition region in the upper part of the domain: Spine points to...
Definition bretherton_spine_mesh.h:330
oomph::BrethertonSpineMesh::Interface_element_pt
Vector< FiniteElement * > Interface_element_pt
Vector of pointers to interface elements.
Definition bretherton_spine_mesh.h:540
oomph::BrethertonSpineMesh::Control_element_pt
ELEMENT * Control_element_pt
Pointer to control element (just under the symmetry line near the bubble tip; the bubble tip is locat...
Definition bretherton_spine_mesh.h:534
oomph::BrethertonSpineMesh::spine_node_update
void spine_node_update(SpineNode *spine_node_pt)
General node update function implements pure virtual function defined in SpineMesh base class and per...
Definition bretherton_spine_mesh.h:136
oomph::BrethertonSpineMesh::spine_node_update_vertical_transition_lower
void spine_node_update_vertical_transition_lower(SpineNode *spine_node_pt)
Update function for the vertical transitition region in the lower part of the domain: Spine points to...
Definition bretherton_spine_mesh.h:273
oomph::BrethertonSpineMesh::spine_node_update_horizontal_transition_upper
void spine_node_update_horizontal_transition_upper(SpineNode *spine_node_pt)
Update function for the horizontal transitition region in the upper part of the domain: Spine points ...
Definition bretherton_spine_mesh.h:387
oomph::BrethertonSpineMesh::Zeta_end
double Zeta_end
Wall coordinate of end of liquid filled region (inflow)
Definition bretherton_spine_mesh.h:517
oomph::BrethertonSpineMesh::find_distance_to_free_surface
double find_distance_to_free_surface(GeomObject *const &fs_geom_object_pt, Vector< double > &initial_zeta, const Vector< double > &spine_base, const Vector< double > &spine_end)
Recalculate the spine lengths after repositioning.
Definition bretherton_spine_mesh.template.cc:1057
oomph::BrethertonSpineMesh::nfree_surface_spines
unsigned nfree_surface_spines()
Number of free-surface spines (i.e. excluding the dummy spines in the channel region)
Definition bretherton_spine_mesh.h:104
oomph::BrethertonSpineMesh::ninterface_element
unsigned long ninterface_element() const
Number of elements on interface.
Definition bretherton_spine_mesh.h:85
oomph::BrethertonSpineMesh::Spine_centre_fraction_pt
double * Spine_centre_fraction_pt
Pointer to vertical fraction of the spine centre.
Definition bretherton_spine_mesh.h:526
oomph::BrethertonSpineMesh::Nx1
unsigned Nx1
Number of elements along wall in deposited film region.
Definition bretherton_spine_mesh.h:489
oomph::BrethertonSpineMesh::Zeta_transition_start
double Zeta_transition_start
Wall coordinate of start of the transition region.
Definition bretherton_spine_mesh.h:520
oomph::MacroElementNodeUpdateCollapsibleChannelMesh
Collapsible channel mesh with MacroElement-based node update. The collapsible segment is represented ...
Definition collapsible_channel_mesh.h:236
oomph::SingleLayerSpineMesh
Single-layer spine mesh class derived from standard 2D mesh. The mesh contains a layer of spinified f...
Definition single_layer_spine_mesh.h:47
simple_rectangular_quadmesh.h
single_layer_spine_mesh.h