TrioCFD 1.9.9_beta
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Sortie_libre_Gradient_Pression_libre_VEFPreP1B.cpp
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15
16#include <Sortie_libre_Gradient_Pression_libre_VEFPreP1B.h>
17#include <Champ_P1_isoP1Bulle.h>
18#include <Domaine_Cl_dis_base.h>
19#include <Navier_Stokes_std.h>
20#include <Champ_Uniforme.h>
21#include <distances_VEF.h>
22#include <Milieu_base.h>
23
24Implemente_instanciable(Sortie_libre_Gradient_Pression_libre_VEFPreP1B, "Frontiere_ouverte_Gradient_Pression_libre_VEFPreP1B", Neumann_sortie_libre);
25// XD frontiere_ouverte_gradient_pression_libre_vefprep1b neumann frontiere_ouverte_gradient_pression_libre_vefprep1b INHERITS_BRACE Class for outlet boundary condition in VEF P1B/P1NC like Orlansky.
26
27
29
31{
32 if (app_domains.size() == 0) app_domains = { Motcle("Hydraulique"), Motcle("indetermine") };
33 if (supp_discs.size() == 0) supp_discs = { Nom("VEFPreP1B") };
34
35 le_champ_front.typer("Champ_front_uniforme");
36 le_champ_front->valeurs().resize(1, dimension);
37 le_champ_front->fixer_nb_comp(1);
38 le_champ_ext.typer("Champ_front_uniforme");
39 le_champ_ext->valeurs().resize(1, dimension);
40 return is;
41}
42
44{
45
46 Cerr << "Sortie_libre_Gradient_Pression_libre_VEFPreP1B::completer()" << finl;
47 const Domaine_Cl_dis_base& le_dom_Cl = domaine_Cl_dis();
48 const Equation_base& eqn = le_dom_Cl.equation();
49 const Navier_Stokes_std& eqn_hydr = ref_cast(Navier_Stokes_std, eqn);
50
51 const Domaine_VEF& mon_dom_VEF = ref_cast(Domaine_VEF, eqn.domaine_dis());
52
53 const Champ_P1_isoP1Bulle& pression = ref_cast(Champ_P1_isoP1Bulle, eqn_hydr.pression());
54
55 const IntTab& face_voisins = mon_dom_VEF.face_voisins();
56
57 pression_interne = pression;
58
59 const Front_VF& le_bord = ref_cast(Front_VF, frontiere_dis());
60 int nb_faces_loc = le_bord.nb_faces();
61
62 int ndeb = le_bord.num_premiere_face();
63 int nfin = ndeb + nb_faces_loc;
64 int face;
65 coeff.resize(nb_faces_loc);
66
67 if (dimension == 2)
68 for (face = ndeb; face < nfin; face++)
69 {
70 int elem = face_voisins(face, 0);
71 coeff[face - ndeb] = distance_2D(face, elem, mon_dom_VEF) * 3.;
72 }
73 if (dimension == 3)
74 for (face = ndeb; face < nfin; face++)
75 {
76 int elem = face_voisins(face, 0);
77 coeff[face - ndeb] = distance_3D(face, elem, mon_dom_VEF) * 4.;
78 }
79
80 pression_temps_moins_un.resize(nb_faces_loc);
81 pression_temps_moins_deux.resize(nb_faces_loc);
82 pression_moins_un_temps_moins_un.resize(nb_faces_loc);
83 pression_moins_un_temps_moins_deux.resize(nb_faces_loc);
84 pression_moins_deux_temps_moins_un.resize(nb_faces_loc);
85 pression_moins_un.resize(nb_faces_loc, 1);
86 pression_moins_deux.resize(nb_faces_loc, 1);
87
88 Pimp.resize(nb_faces_loc);
89
90 Cerr << "Sortie_libre_Gradient_Pression_libre_VEFPreP1B::completer() ok" << finl;
91}
92
94{
95
96 int ok = Cond_lim_base::initialiser(temps);
97
98 const Front_VF& le_bord = ref_cast(Front_VF, frontiere_dis());
99
100 int nb_faces_loc = le_bord.nb_faces();
101 int ndeb = le_bord.num_premiere_face();
102 int nfin = ndeb + nb_faces_loc;
103
104 int face, face_loc;
105
106 for (face = ndeb; face < nfin; face++)
107 {
108 face_loc = face - ndeb;
109 Pimp[face_loc] = pression_interne->valeur_au_bord(face);
110 pression_moins_un(face_loc, 0) = Pimp[face_loc];
111 pression_moins_deux(face_loc, 0) = Pimp[face_loc];
112 }
113
119
120 return ok;
121}
122
124{
125
126 const Domaine_Cl_dis_base& le_dom_Cl = domaine_Cl_dis();
127 const Equation_base& eqn = le_dom_Cl.equation();
128 const Domaine_VEF& mon_dom_VEF = ref_cast(Domaine_VEF, eqn.domaine_dis());
129 const DoubleTab& face_normale = mon_dom_VEF.face_normales();
130 const Front_VF& le_bord = ref_cast(Front_VF, frontiere_dis());
131
132 int nb_faces_loc = le_bord.nb_faces();
133 int ndeb = le_bord.num_premiere_face();
134 int nfin = ndeb + nb_faces_loc;
135
136 int face, face_loc, j;
137
138 const DoubleTab& xv = mon_dom_VEF.xv();
139
140 DoubleTab geom;
141 geom.resize(nb_faces_loc, dimension);
142
144
145 for (face = ndeb; face < nfin; face++)
146 {
147 face_loc = face - ndeb;
148
150 pression_temps_moins_un(face_loc) = Pimp(face_loc);
154 }
155
156 double orient;
157 for (face = ndeb; face < nfin; face++)
158 {
159 orient = 0.;
160 for (j = 0; j < dimension; j++)
161 {
162 orient += (face_normale(face, j) * face_normale(face, j));
163 }
164
165 orient = sqrt(orient);
166
167 for (j = 0; j < dimension; j++)
168 {
169 geom(face - ndeb, j) = xv(face, j);
170 geom(face - ndeb, j) -= face_normale(face, j) / orient * coeff(face - ndeb);
171 ;
172 }
173
174 }
175
176 pression_interne->valeur_aux(geom, pression_moins_un);
177
178 for (face = ndeb; face < nfin; face++)
179 {
180 orient = 0.;
181 for (j = 0; j < dimension; j++)
182 {
183 orient += (face_normale(face, j) * face_normale(face, j));
184 }
185
186 orient = sqrt(orient);
187
188 for (j = 0; j < dimension; j++)
189 {
190 geom(face - ndeb, j) = xv(face, j);
191 geom(face - ndeb, j) -= face_normale(face, j) / orient * 2. * coeff(face - ndeb);
192 }
193
194 }
195
196 pression_interne->valeur_aux(geom, pression_moins_deux);
197
198 double VPhiP;
199
200 for (face = ndeb; face < nfin; face++)
201 {
202 face_loc = face - ndeb;
203 double pre_m_un_t_m_deux = pression_moins_un_temps_moins_deux(face_loc);
204 double pre_m_deux_t_m_un = pression_moins_deux_temps_moins_un(face_loc);
205 double pre_m_un = pression_moins_un(face_loc, 0);
206
207 if (pre_m_un_t_m_deux == pre_m_un)
208 VPhiP = 0.;
209 else
210 VPhiP = (pre_m_un_t_m_deux - pre_m_un) / (pre_m_un + pre_m_un_t_m_deux - 2 * pre_m_deux_t_m_un);
211
212 if (VPhiP <= 1.e-24)
213 VPhiP = 0.0;
214 if (VPhiP > 1.)
215 VPhiP = 1.0;
216 assert(VPhiP < 1.e12);
217
218 Pimp[face_loc] = (1 - VPhiP) / (1 + VPhiP) * pression_temps_moins_un(face_loc) + (2 * VPhiP) / (1 + VPhiP) * pression_moins_un(face_loc, 0);
219
220 }
221
222}
223
225{
226 return Pimp[face];
227}
228
230{
231 return flux_impose(face);
232}
233
235{
236 const Milieu_base& mil = mon_dom_cl_dis->equation().milieu();
237 const Champ_Uniforme& rho = ref_cast(Champ_Uniforme, mil.masse_volumique());
238 double d_rho = rho.valeurs()(0, 0);
239 if (le_champ_front->valeurs().size() == 1)
240 return le_champ_front->valeurs()(0, 0) / d_rho;
241 else if (le_champ_front->valeurs().dimension(1) == 1)
242 return le_champ_front->valeurs()(face, 0) / d_rho;
243 else
244 Cerr << "Sortie_libre_Gradient_Pression_libre_VEFPreP1B::Grad_P_lib_VEFPreP1B() error" << finl;
245 exit();
246 return 0.;
247}
DoubleTab & valeurs() override
Overrides Champ_base::valeurs() Returns the array of values.
Champ_Uniforme Represents a field that is constant in space and time.
std::vector< Nom > supp_discs
virtual void mettre_a_jour(double temps)
Performs a time update of the boundary condition.
Domaine_Cl_dis_base & domaine_Cl_dis()
Returns the domain of discretized boundary conditions to which the object belongs.
std::vector< Motcle > app_domains
virtual int initialiser(double temps)
Initialization at the beginning of the calculation.
virtual Frontiere_dis_base & frontiere_dis()
Returns the discretized boundary to which the boundary conditions apply.
class Domaine_Cl_dis_base Domaine_Cl_dis_base objects represent discretized boundary conditions
class Domaine_VEF
Definition Domaine_VEF.h:53
virtual double face_normales(int face, int comp) const
Definition Domaine_VF.h:47
double xv(int num_face, int k) const
Definition Domaine_VF.h:76
int face_voisins(int num_face, int i) const
Returns the neighbouring element of num_face in direction i.
Definition Domaine_VF.h:418
Class defining operators and methods for all reading operation in an input flow (file,...
Definition Entree.h:42
class Equation_base The role of an equation is the calculation of one or more fields....
virtual const Milieu_base & milieu() const =0
Domaine_dis_base & domaine_dis()
Returns the discretized domain associated with the equation.
class Front_VF
Definition Front_VF.h:36
int nb_faces() const
Definition Front_VF.h:53
int num_premiere_face() const
Definition Front_VF.h:63
Milieu_base This class is the base of the (physical) medium hierarchy.
Definition Milieu_base.h:50
virtual const Equation_base & equation(const std::string &nom_inc) const
virtual const Champ_base & masse_volumique() const
Returns the mass density of the medium (const version).
const Equation_base & equation() const
Returns the reference to the equation pointed to by MorEqn::mon_equation.
Definition MorEqn.h:62
Navier_Stokes_std This class carries the terms of the momentum equation.
Champ_Inc_base & pression()
Neumann_sortie_libre This class represents an open boundary without imposed velocity.
static int dimension
Definition Objet_U.h:94
const Nom & que_suis_je() const
Returns the string identifying the class.
Definition Objet_U.cpp:104
virtual Entree & readOn(Entree &)
Reads an Objet_U from an input stream. Virtual method to override.
Definition Objet_U.cpp:289
virtual Sortie & printOn(Sortie &) const
Writes the object to an output stream. Virtual method to override.
Definition Objet_U.cpp:278
static void exit(int exit_code=-1)
Exit routine for TRUST within a Kokkos region.
Definition Process.cpp:466
void mettre_a_jour(double temps) override
Performs a time update of the boundary condition.
int initialiser(double temps) override
Initialization at the beginning of the calculation.
void completer() override
DOES NOTHING must be overridden in derived classes.
double flux_impose(int) const override
Returns the value of the imposed flux on the i-th component of the field representing the flux at the...
Base class for output streams.
Definition Sortie.h:52
void resize(_SIZE_ n, RESIZE_OPTIONS opt=RESIZE_OPTIONS::COPY_INIT)
Definition TRUSTTab.tpp:469