Line data Source code
1 : //
2 : // Boundary condition similar to BC::Constant, except that "values"
3 : // are given as strings which are functions of x,y,z,t.
4 : //
5 :
6 : #ifndef BC_EXPRESSION_H_
7 : #define BC_EXPRESSION_H_
8 :
9 : #include <AMReX_ParallelDescriptor.H>
10 : #include <AMReX_ParmParse.H>
11 : #include <AMReX_BCRec.H>
12 : #include <AMReX_PhysBCFunct.H>
13 : #include <AMReX_Array.H>
14 : #include <AMReX_Parser.H>
15 :
16 : #include "IO/ParmParse.H"
17 : #include "BC/BC.H"
18 :
19 : namespace BC
20 : {
21 : class Expression
22 : : public BC<Set::Scalar>
23 : {
24 : public:
25 : static constexpr const char* name = "expression";
26 :
27 : //static constexpr const char* const Elastic::strings[];
28 : #if AMREX_SPACEDIM==2
29 : static const constexpr char * const facestr[] = {
30 : "xlo","ylo","xhi","yhi"
31 : };
32 : #elif AMREX_SPACEDIM==3
33 : static const constexpr char * const facestr[] = {
34 : "xlo","ylo","zlo","xhi","yhi","zhi",
35 : };
36 : #endif
37 :
38 : #if AMREX_SPACEDIM==2
39 : enum Face {
40 : XLO, YLO, XHI, YHI,
41 : INT
42 : };
43 : #elif AMREX_SPACEDIM==3
44 : enum Face {
45 : XLO, YLO, ZLO, XHI, YHI, ZHI, // 6
46 : INT
47 : };
48 : #endif
49 :
50 : public:
51 : //Constant (amrex::Vector<amrex::Geometry> &_geom) : geom(_geom) {};
52 : Expression(int a_ncomp) : m_ncomp(a_ncomp) {};
53 0 : Expression(int a_ncomp, IO::ParmParse& pp, std::string name) : m_ncomp(a_ncomp)
54 : {
55 0 : pp_queryclass(name, *this);
56 0 : };
57 :
58 0 : virtual ~Expression() {};
59 :
60 : virtual void FillBoundary(amrex::BaseFab<Set::Scalar>& in, const amrex::Box& box,
61 : int ngrow, int dcomp, int ncomp, amrex::Real time,
62 : Orientation face = Orientation::All,
63 : const amrex::Mask* mask = nullptr) override;
64 :
65 : using BC::FillBoundary;
66 :
67 : amrex::BCRec GetBCRec() override;
68 : virtual amrex::Array<int, AMREX_SPACEDIM> IsPeriodic() override;
69 : virtual amrex::Periodicity Periodicity() const override;
70 : virtual amrex::Periodicity Periodicity(const amrex::Box& b) override;
71 :
72 :
73 :
74 : template<class T>
75 : const amrex::Array<amrex::Array<T, AMREX_SPACEDIM>, 2> GetBCTypes()
76 : {
77 : return { {{AMREX_D_DECL((T)m_bc_type[Face::XLO][0],(T)m_bc_type[Face::YLO][0],(T)m_bc_type[Face::ZLO][0])},
78 : {AMREX_D_DECL((T)m_bc_type[Face::XLO][0],(T)m_bc_type[Face::YLO][0],(T)m_bc_type[Face::ZLO][0])}} };
79 : }
80 :
81 :
82 : private:
83 : #if AMREX_SPACEDIM==2
84 : static const int m_nfaces = 4;
85 : #elif AMREX_SPACEDIM==3
86 : static const int m_nfaces = 6;
87 : #endif
88 :
89 : unsigned int m_ncomp = 0;
90 :
91 : std::array<std::vector<int>, m_nfaces> m_bc_type;
92 : std::array<std::vector<amrex::Parser>, m_nfaces> m_bc_func_parser;
93 : std::array<std::vector<amrex::ParserExecutor<4>>, m_nfaces> m_bc_func;
94 :
95 : //std::array<std::vector<Numeric::Interpolator::Linear<Set::Scalar>>, m_nfaces> m_bc_val;
96 :
97 : public:
98 0 : static void Parse(Expression& value, IO::ParmParse& pp)
99 : {
100 0 : std::map<std::string, int> bcmap;
101 0 : bcmap["BOGUS_BC"] = amrex::BCType::mathematicalBndryTypes::bogus;
102 0 : bcmap["INT_DIR"] = amrex::BCType::mathematicalBndryTypes::int_dir;
103 0 : bcmap["REFLECT_ODD"] = amrex::BCType::mathematicalBndryTypes::reflect_odd;
104 0 : bcmap["INT_DIR"] = amrex::BCType::mathematicalBndryTypes::int_dir;
105 0 : bcmap["REFLECT_EVEN"] = amrex::BCType::mathematicalBndryTypes::reflect_even;
106 0 : bcmap["FOEXTRAP"] = amrex::BCType::mathematicalBndryTypes::foextrap;
107 0 : bcmap["EXT_DIR"] = amrex::BCType::mathematicalBndryTypes::ext_dir;
108 0 : bcmap["HOEXTRAP"] = amrex::BCType::mathematicalBndryTypes::hoextrap;
109 0 : bcmap["Interior"] = amrex::BCType::mathematicalBndryTypes::int_dir;
110 0 : bcmap["Inflow"] = amrex::BCType::mathematicalBndryTypes::ext_dir;
111 0 : bcmap["Outflow"] = amrex::BCType::mathematicalBndryTypes::foextrap;
112 0 : bcmap["Symmetry"] = amrex::BCType::mathematicalBndryTypes::reflect_even;
113 0 : bcmap["SlipWall"] = amrex::BCType::mathematicalBndryTypes::ext_dir;
114 0 : bcmap["NoSlipWall"] = amrex::BCType::mathematicalBndryTypes::ext_dir;
115 : // From <AMReX_LO_BCTYPES.H>
116 0 : bcmap["interior"] = (int)amrex::LinOpBCType::interior;
117 0 : bcmap["Dirichlet"] = (int)amrex::LinOpBCType::Dirichlet;
118 0 : bcmap["dirichlet"] = (int)amrex::LinOpBCType::Dirichlet;
119 0 : bcmap["Neumann"] = (int)amrex::LinOpBCType::Neumann;
120 0 : bcmap["NEUMANN"] = (int)amrex::LinOpBCType::Neumann;
121 0 : bcmap["neumann"] = (int)amrex::LinOpBCType::Neumann;
122 0 : bcmap["reflect_odd"] = (int)amrex::LinOpBCType::reflect_odd;
123 0 : bcmap["Marshak"] = (int)amrex::LinOpBCType::Marshak;
124 0 : bcmap["SanchezPomraning"] = (int)amrex::LinOpBCType::SanchezPomraning;
125 0 : bcmap["inflow"] = (int)amrex::LinOpBCType::inflow;
126 0 : bcmap["Periodic"] = (int)amrex::LinOpBCType::Periodic;
127 0 : bcmap["periodic"] = (int)amrex::LinOpBCType::Periodic;
128 :
129 :
130 :
131 : // TYPES
132 :
133 0 : std::vector<std::string> str;
134 0 : pp_queryarr_default("type.xlo", str,"dirichlet"); // BC type on the lower x edge (2d) face (3d)
135 0 : for (unsigned int i = 0; i < str.size(); i++) if (!bcmap.count(str[i])) Util::Abort(INFO, "Invalid BC: ", str[i]);
136 0 : if (str.size() == value.m_ncomp) for (unsigned int i = 0; i < value.m_ncomp; i++) value.m_bc_type[Face::XLO].push_back(bcmap[str[i]]);
137 0 : else if (str.size() == 1) value.m_bc_type[Face::XLO].resize(value.m_ncomp, bcmap[str[0]]);
138 0 : else Util::Abort(INFO, "Incorrect number of ", pp.prefix(), " BC type args: expected ", value.m_ncomp, " or 1 but got ", str.size());
139 0 : pp_queryarr_default("type.xhi", str,"dirichlet"); // BC type on the upper x edge (2d) face (3d)
140 0 : for (unsigned int i = 0; i < str.size(); i++) if (!bcmap.count(str[i])) Util::Abort(INFO, "Invalid BC: ", str[i]);
141 0 : if (str.size() == value.m_ncomp) for (unsigned int i = 0; i < value.m_ncomp; i++) value.m_bc_type[Face::XHI].push_back(bcmap[str[i]]);
142 0 : else if (str.size() == 1) value.m_bc_type[Face::XHI].resize(value.m_ncomp, bcmap[str[0]]);
143 0 : else Util::Abort(INFO, "Incorrect number of ", pp.prefix(), " BC type args: expected ", value.m_ncomp, " or 1 but got ", str.size());
144 0 : pp_queryarr_default("type.ylo", str,"dirichlet"); // BC type on the lower y edge (2d) face (3d)
145 0 : for (unsigned int i = 0; i < str.size(); i++) if (!bcmap.count(str[i])) Util::Abort(INFO, "Invalid BC: ", str[i]);
146 0 : if (str.size() == value.m_ncomp) for (unsigned int i = 0; i < value.m_ncomp; i++) value.m_bc_type[Face::YLO].push_back(bcmap[str[i]]);
147 0 : else if (str.size() == 1) value.m_bc_type[Face::YLO].resize(value.m_ncomp, bcmap[str[0]]);
148 0 : else Util::Abort(INFO, "Incorrect number of ", pp.prefix(), " BC type args: expected ", value.m_ncomp, " or 1 but got ", str.size());
149 0 : pp_queryarr_default("type.yhi", str,"dirichlet"); // BC type on the upper y edge (2d) face (3d)
150 0 : for (unsigned int i = 0; i < str.size(); i++) if (!bcmap.count(str[i])) Util::Abort(INFO, "Invalid BC: ", str[i]);
151 0 : if (str.size() == value.m_ncomp) for (unsigned int i = 0; i < value.m_ncomp; i++) value.m_bc_type[Face::YHI].push_back(bcmap[str[i]]);
152 0 : else if (str.size() == 1) value.m_bc_type[Face::YHI].resize(value.m_ncomp, bcmap[str[0]]);
153 0 : else Util::Abort(INFO, "Incorrect number of ", pp.prefix(), " BC type args: expected ", value.m_ncomp, " or 1 but got ", str.size());
154 0 : pp_queryarr_default("type.zlo", str,"dirichlet"); // BC type on the lower z face (processed but ignored in 2d to prevent unused input errors)
155 : #if AMREX_SPACEDIM==3
156 0 : for (unsigned int i = 0; i < str.size(); i++) if (!bcmap.count(str[i])) Util::Abort(INFO, "Invalid BC: ", str[i]);
157 0 : if (str.size() == value.m_ncomp) for (unsigned int i = 0; i < value.m_ncomp; i++) value.m_bc_type[Face::ZLO].push_back(bcmap[str[i]]);
158 0 : else if (str.size() == 1) value.m_bc_type[Face::ZLO].resize(value.m_ncomp, bcmap[str[0]]);
159 0 : else Util::Abort(INFO, "Incorrect number of ", pp.prefix(), " BC type args: expected ", value.m_ncomp, " or 1 but got ", str.size());
160 : #endif
161 0 : pp_queryarr_default("type.zhi", str,"dirichlet"); // BC type on the upper z face (processed but ignored in 2d to prevent unused input errors)
162 : #if AMREX_SPACEDIM==3
163 0 : for (unsigned int i = 0; i < str.size(); i++) if (!bcmap.count(str[i])) Util::Abort(INFO, "Invalid BC: ", str[i]);
164 0 : if (str.size() == value.m_ncomp) for (unsigned int i = 0; i < value.m_ncomp; i++) value.m_bc_type[Face::ZHI].push_back(bcmap[str[i]]);
165 0 : else if (str.size() == 1) value.m_bc_type[Face::ZHI].resize(value.m_ncomp, bcmap[str[0]]);
166 0 : else Util::Abort(INFO, "Incorrect number of ", pp.prefix(), " BC type args: expected ", value.m_ncomp, " or 1 but got ", str.size());
167 : #endif
168 :
169 : // VALS
170 0 : std::vector<std::string> val;
171 0 : for (int face = 0; face != Face::INT; face++)
172 : {
173 0 : std::string querystr = std::string("val.") + std::string(facestr[face]);
174 0 : if (pp.contains(querystr.c_str())) pp_queryarr(querystr.c_str(),val);
175 0 : else val.resize(value.m_ncomp,"0.0");
176 0 : if (val.size() != value.m_ncomp) Util::Abort(INFO,"Incorrect number of expressions specified for ",querystr,": expected 1 or ",value.m_ncomp," but received ",val.size());
177 :
178 0 : value.m_bc_func_parser[face].clear();
179 0 : value.m_bc_func[face].clear();
180 0 : for (unsigned int i = 0 ; i < value.m_ncomp; i++)
181 : {
182 0 : value.m_bc_func_parser[face].push_back( amrex::Parser(val[i].c_str()) );
183 0 : value.m_bc_func_parser[face][i].registerVariables({"x","y","z","t"});
184 0 : value.m_bc_func[face].push_back( value.m_bc_func_parser[face][i].compile<4>() );
185 : }
186 0 : }
187 :
188 : #if AMREX_SPACEDIM==2
189 : // We may wish to use an input file that has 3D BC inputs
190 : // This will prevent the parser from complaining that there are unused inputs.
191 : std::vector<std::string> ignore_in_2d = {
192 : "zlo","zhi",
193 : "zhixlo","zloxlo","zhixhi","zloxhi","ylozlo","ylozhi","yhizlo","yhizhi",
194 0 : "xloylozlo","xloylozhi","xloyhizlo","xloyhizhi","xhiylozlo","xhiylozhi","xhiyhizlo","xhiyhizhi"};
195 0 : for (unsigned int n = 0; n < ignore_in_2d.size(); n++)
196 : {
197 0 : std::string querystr = std::string("val.") + ignore_in_2d[n];
198 0 : pp.ignore(querystr);
199 0 : querystr = std::string("type.") + ignore_in_2d[n];
200 0 : pp.ignore(querystr);
201 0 : }
202 : #endif
203 :
204 0 : }
205 : };
206 : }
207 : #endif
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