diff options
Diffstat (limited to 'Source/Initialization/PlasmaInjector.cpp')
| -rw-r--r-- | Source/Initialization/PlasmaInjector.cpp | 345 |
1 files changed, 116 insertions, 229 deletions
diff --git a/Source/Initialization/PlasmaInjector.cpp b/Source/Initialization/PlasmaInjector.cpp index f9642d1b6..280f9e58a 100644 --- a/Source/Initialization/PlasmaInjector.cpp +++ b/Source/Initialization/PlasmaInjector.cpp @@ -55,192 +55,34 @@ namespace { } } -ConstantDensityProfile::ConstantDensityProfile(Real density) - : _density(density) -{} +PlasmaInjector::PlasmaInjector () {} -Real ConstantDensityProfile::getDensity(Real x, Real y, Real z) const -{ - return _density; -} - -CustomDensityProfile::CustomDensityProfile(const std::string& species_name) +PlasmaInjector::PlasmaInjector (int ispecies, const std::string& name) + : species_id(ispecies), species_name(name) { ParmParse pp(species_name); - pp.getarr("custom_profile_params", params); -} -PredefinedDensityProfile::PredefinedDensityProfile(const std::string& species_name) -{ - ParmParse pp(species_name); - std::string which_profile_s; - pp.getarr("predefined_profile_params", params); - pp.query("predefined_profile_name", which_profile_s); - if (which_profile_s == "parabolic_channel"){ - which_profile = predefined_profile_flag::parabolic_channel; - } -} - -ParseDensityProfile::ParseDensityProfile(std::string parse_density_function) - : _parse_density_function(parse_density_function) -{ - parser_density.define(parse_density_function); - parser_density.registerVariables({"x","y","z"}); - - ParmParse pp("my_constants"); - std::set<std::string> symbols = parser_density.symbols(); - symbols.erase("x"); - symbols.erase("y"); - symbols.erase("z"); // after removing variables, we are left with constants - for (auto it = symbols.begin(); it != symbols.end(); ) { - Real v; - if (pp.query(it->c_str(), v)) { - parser_density.setConstant(*it, v); - it = symbols.erase(it); - } else { - ++it; - } - } - for (auto const& s : symbols) { // make sure there no unknown symbols - amrex::Abort("ParseDensityProfile: Unknown symbol "+s); - } -} - -Real ParseDensityProfile::getDensity(Real x, Real y, Real z) const -{ - return parser_density.eval(x,y,z); -} - -ConstantMomentumDistribution::ConstantMomentumDistribution(Real ux, - Real uy, - Real uz) - : _ux(ux), _uy(uy), _uz(uz) -{} - -void ConstantMomentumDistribution::getMomentum(vec3& u, Real x, Real y, Real z) { - u[0] = _ux; - u[1] = _uy; - u[2] = _uz; -} - -CustomMomentumDistribution::CustomMomentumDistribution(const std::string& species_name) -{ - ParmParse pp(species_name); - pp.getarr("custom_momentum_params", params); -} - -GaussianRandomMomentumDistribution::GaussianRandomMomentumDistribution(Real ux_m, - Real uy_m, - Real uz_m, - Real ux_th, - Real uy_th, - Real uz_th) - : _ux_m(ux_m), _uy_m(uy_m), _uz_m(uz_m), _ux_th(ux_th), _uy_th(uy_th), _uz_th(uz_th) -{ -} - -void GaussianRandomMomentumDistribution::getMomentum(vec3& u, Real x, Real y, Real z) { - Real ux_th = amrex::RandomNormal(0.0, _ux_th); - Real uy_th = amrex::RandomNormal(0.0, _uy_th); - Real uz_th = amrex::RandomNormal(0.0, _uz_th); - - u[0] = _ux_m + ux_th; - u[1] = _uy_m + uy_th; - u[2] = _uz_m + uz_th; -} -RadialExpansionMomentumDistribution::RadialExpansionMomentumDistribution(Real u_over_r) : _u_over_r( u_over_r ) -{ -} - -void RadialExpansionMomentumDistribution::getMomentum(vec3& u, Real x, Real y, Real z) { - u[0] = _u_over_r * x; - u[1] = _u_over_r * y; - u[2] = _u_over_r * z; -} - -ParseMomentumFunction::ParseMomentumFunction(std::string parse_momentum_function_ux, - std::string parse_momentum_function_uy, - std::string parse_momentum_function_uz) - : _parse_momentum_function_ux(parse_momentum_function_ux), - _parse_momentum_function_uy(parse_momentum_function_uy), - _parse_momentum_function_uz(parse_momentum_function_uz) -{ - parser_ux.define(parse_momentum_function_ux); - parser_uy.define(parse_momentum_function_uy); - parser_uz.define(parse_momentum_function_uz); - - amrex::Array<std::reference_wrapper<WarpXParser>,3> parsers{parser_ux, parser_uy, parser_uz}; - ParmParse pp("my_constants"); - for (auto& p : parsers) { - auto& parser = p.get(); - parser.registerVariables({"x","y","z"}); - std::set<std::string> symbols = parser.symbols(); - symbols.erase("x"); - symbols.erase("y"); - symbols.erase("z"); // after removing variables, we are left with constants - for (auto it = symbols.begin(); it != symbols.end(); ) { - Real v; - if (pp.query(it->c_str(), v)) { - parser.setConstant(*it, v); - it = symbols.erase(it); - } else { - ++it; - } - } - for (auto const& s : symbols) { // make sure there no unknown symbols - amrex::Abort("ParseMomentumFunction: Unknown symbol "+s); - } - } -} - -void ParseMomentumFunction::getMomentum(vec3& u, Real x, Real y, Real z) -{ - u[0] = parser_ux.eval(x,y,z); - u[1] = parser_uy.eval(x,y,z); - u[2] = parser_uz.eval(x,y,z); -} - -RandomPosition::RandomPosition(int num_particles_per_cell): - _num_particles_per_cell(num_particles_per_cell) -{} - -void RandomPosition::getPositionUnitBox(vec3& r, int i_part, int ref_fac){ - r[0] = amrex::Random(); - r[1] = amrex::Random(); - r[2] = amrex::Random(); -} - -RegularPosition::RegularPosition(const amrex::Vector<int>& num_particles_per_cell_each_dim) - : _num_particles_per_cell_each_dim(num_particles_per_cell_each_dim) -{} + pp.query("radially_weighted", radially_weighted); + AMREX_ALWAYS_ASSERT_WITH_MESSAGE(radially_weighted, "ERROR: Only radially_weighted=true is supported"); -void RegularPosition::getPositionUnitBox(vec3& r, int i_part, int ref_fac) -{ - int nx = ref_fac*_num_particles_per_cell_each_dim[0]; - int ny = ref_fac*_num_particles_per_cell_each_dim[1]; -#if AMREX_SPACEDIM == 3 - int nz = ref_fac*_num_particles_per_cell_each_dim[2]; -#else - int nz = 1; -#endif - - int ix_part = i_part/(ny * nz); - int iy_part = (i_part % (ny * nz)) % ny; - int iz_part = (i_part % (ny * nz)) / ny; + // parse plasma boundaries + xmin = std::numeric_limits<amrex::Real>::lowest(); + ymin = std::numeric_limits<amrex::Real>::lowest(); + zmin = std::numeric_limits<amrex::Real>::lowest(); - r[0] = (0.5+ix_part)/nx; - r[1] = (0.5+iy_part)/ny; - r[2] = (0.5+iz_part)/nz; -} + xmax = std::numeric_limits<amrex::Real>::max(); + ymax = std::numeric_limits<amrex::Real>::max(); + zmax = std::numeric_limits<amrex::Real>::max(); -PlasmaInjector::PlasmaInjector(){ - part_pos = NULL; -} + pp.query("xmin", xmin); + pp.query("ymin", ymin); + pp.query("zmin", zmin); + pp.query("xmax", xmax); + pp.query("ymax", ymax); + pp.query("zmax", zmax); -PlasmaInjector::PlasmaInjector(int ispecies, const std::string& name) - : species_id(ispecies), species_name(name) -{ - ParmParse pp(species_name); + pp.query("density_min", density_min); + pp.query("density_max", density_max); // parse charge and mass std::string charge_s; @@ -290,9 +132,14 @@ PlasmaInjector::PlasmaInjector(int ispecies, const std::string& name) gaussian_beam = true; parseMomentum(pp); } + // Depending on injection type at runtime, initialize inj_pos + // so that inj_pos->getPositionUnitBox calls + // InjectorPosition[Random or Regular].getPositionUnitBox. else if (part_pos_s == "nrandompercell") { pp.query("num_particles_per_cell", num_particles_per_cell); - part_pos.reset(new RandomPosition(num_particles_per_cell)); + // Construct InjectorPosition with InjectorPositionRandom. + inj_pos.reset(new InjectorPosition((InjectorPositionRandom*)nullptr, + xmin, xmax, ymin, ymax, zmin, zmax)); parseDensity(pp); parseMomentum(pp); } else if (part_pos_s == "nuniformpercell") { @@ -301,7 +148,12 @@ PlasmaInjector::PlasmaInjector(int ispecies, const std::string& name) #if ( AMREX_SPACEDIM == 2 ) num_particles_per_cell_each_dim[2] = 1; #endif - part_pos.reset(new RegularPosition(num_particles_per_cell_each_dim)); + // Construct InjectorPosition from InjectorPositionRegular. + inj_pos.reset(new InjectorPosition((InjectorPositionRegular*)nullptr, + xmin, xmax, ymin, ymax, zmin, zmax, + Dim3{num_particles_per_cell_each_dim[0], + num_particles_per_cell_each_dim[1], + num_particles_per_cell_each_dim[2]})); num_particles_per_cell = num_particles_per_cell_each_dim[0] * num_particles_per_cell_each_dim[1] * num_particles_per_cell_each_dim[2]; @@ -310,52 +162,71 @@ PlasmaInjector::PlasmaInjector(int ispecies, const std::string& name) } else { StringParseAbortMessage("Injection style", part_pos_s); } +} - pp.query("radially_weighted", radially_weighted); - AMREX_ALWAYS_ASSERT_WITH_MESSAGE(radially_weighted, "ERROR: Only radially_weighted=true is supported"); - - // parse plasma boundaries - xmin = std::numeric_limits<amrex::Real>::lowest(); - ymin = std::numeric_limits<amrex::Real>::lowest(); - zmin = std::numeric_limits<amrex::Real>::lowest(); - - xmax = std::numeric_limits<amrex::Real>::max(); - ymax = std::numeric_limits<amrex::Real>::max(); - zmax = std::numeric_limits<amrex::Real>::max(); +namespace { +WarpXParser makeParser (std::string const& parse_function) +{ + WarpXParser parser(parse_function); + parser.registerVariables({"x","y","z"}); - pp.query("xmin", xmin); - pp.query("ymin", ymin); - pp.query("zmin", zmin); - pp.query("xmax", xmax); - pp.query("ymax", ymax); - pp.query("zmax", zmax); + ParmParse pp("my_constants"); + std::set<std::string> symbols = parser.symbols(); + symbols.erase("x"); + symbols.erase("y"); + symbols.erase("z"); // after removing variables, we are left with constants + for (auto it = symbols.begin(); it != symbols.end(); ) { + Real v; + if (pp.query(it->c_str(), v)) { + parser.setConstant(*it, v); + it = symbols.erase(it); + } else { + ++it; + } + } + for (auto const& s : symbols) { // make sure there no unknown symbols + amrex::Abort("PlasmaInjector::makeParser: Unknown symbol "+s); + } + return parser; +} } -void PlasmaInjector::parseDensity(ParmParse pp){ +// Depending on injection type at runtime, initialize inj_rho +// so that inj_rho->getDensity calls +// InjectorPosition[Constant or Custom or etc.].getDensity. +void PlasmaInjector::parseDensity (ParmParse& pp) +{ // parse density information std::string rho_prof_s; pp.get("profile", rho_prof_s); - std::transform(rho_prof_s.begin(), - rho_prof_s.end(), - rho_prof_s.begin(), - ::tolower); + std::transform(rho_prof_s.begin(), rho_prof_s.end(), + rho_prof_s.begin(), ::tolower); if (rho_prof_s == "constant") { pp.get("density", density); - rho_prof.reset(new ConstantDensityProfile(density)); + // Construct InjectorDensity with InjectorDensityConstant. + inj_rho.reset(new InjectorDensity((InjectorDensityConstant*)nullptr, density)); } else if (rho_prof_s == "custom") { - rho_prof.reset(new CustomDensityProfile(species_name)); + // Construct InjectorDensity with InjectorDensityCustom. + inj_rho.reset(new InjectorDensity((InjectorDensityCustom*)nullptr, species_name)); } else if (rho_prof_s == "predefined") { - rho_prof.reset(new PredefinedDensityProfile(species_name)); + // Construct InjectorDensity with InjectorDensityPredefined. + inj_rho.reset(new InjectorDensity((InjectorDensityPredefined*)nullptr,species_name)); } else if (rho_prof_s == "parse_density_function") { pp.get("density_function(x,y,z)", str_density_function); - rho_prof.reset(new ParseDensityProfile(str_density_function)); + // Construct InjectorDensity with InjectorDensityParser. + inj_rho.reset(new InjectorDensity((InjectorDensityParser*)nullptr, + makeParser(str_density_function))); } else { StringParseAbortMessage("Density profile type", rho_prof_s); } } -void PlasmaInjector::parseMomentum(ParmParse pp){ +// Depending on injection type at runtime, initialize inj_mom +// so that inj_mom->getMomentum calls +// InjectorMomentum[Constant or Custom or etc.].getMomentum. +void PlasmaInjector::parseMomentum (ParmParse& pp) +{ // parse momentum information std::string mom_dist_s; pp.get("momentum_distribution_type", mom_dist_s); @@ -370,9 +241,11 @@ void PlasmaInjector::parseMomentum(ParmParse pp){ pp.query("ux", ux); pp.query("uy", uy); pp.query("uz", uz); - mom_dist.reset(new ConstantMomentumDistribution(ux, uy, uz)); + // Construct InjectorMomentum with InjectorMomentumConstant. + inj_mom.reset(new InjectorMomentum((InjectorMomentumConstant*)nullptr, ux,uy, uz)); } else if (mom_dist_s == "custom") { - mom_dist.reset(new CustomMomentumDistribution(species_name)); + // Construct InjectorMomentum with InjectorMomentumCustom. + inj_mom.reset(new InjectorMomentum((InjectorMomentumCustom*)nullptr, species_name)); } else if (mom_dist_s == "gaussian") { Real ux_m = 0.; Real uy_m = 0.; @@ -386,42 +259,56 @@ void PlasmaInjector::parseMomentum(ParmParse pp){ pp.query("ux_th", ux_th); pp.query("uy_th", uy_th); pp.query("uz_th", uz_th); - mom_dist.reset(new GaussianRandomMomentumDistribution(ux_m, uy_m, uz_m, - ux_th, uy_th, uz_th)); + // Construct InjectorMomentum with InjectorMomentumGaussian. + inj_mom.reset(new InjectorMomentum((InjectorMomentumGaussian*)nullptr, + ux_m, uy_m, uz_m, ux_th, uy_th, uz_th)); } else if (mom_dist_s == "radial_expansion") { Real u_over_r = 0.; pp.query("u_over_r", u_over_r); - mom_dist.reset(new RadialExpansionMomentumDistribution(u_over_r)); + // Construct InjectorMomentum with InjectorMomentumRadialExpansion. + inj_mom.reset(new InjectorMomentum + ((InjectorMomentumRadialExpansion*)nullptr, u_over_r)); } else if (mom_dist_s == "parse_momentum_function") { pp.get("momentum_function_ux(x,y,z)", str_momentum_function_ux); pp.get("momentum_function_uy(x,y,z)", str_momentum_function_uy); pp.get("momentum_function_uz(x,y,z)", str_momentum_function_uz); - mom_dist.reset(new ParseMomentumFunction(str_momentum_function_ux, - str_momentum_function_uy, - str_momentum_function_uz)); + // Construct InjectorMomentum with InjectorMomentumParser. + inj_mom.reset(new InjectorMomentum((InjectorMomentumParser*)nullptr, + makeParser(str_momentum_function_ux), + makeParser(str_momentum_function_uy), + makeParser(str_momentum_function_uz))); } else { StringParseAbortMessage("Momentum distribution type", mom_dist_s); } } -void PlasmaInjector::getPositionUnitBox(vec3& r, int i_part, int ref_fac) { - return part_pos->getPositionUnitBox(r, i_part, ref_fac); +XDim3 PlasmaInjector::getMomentum (Real x, Real y, Real z) const noexcept +{ + return inj_mom->getMomentum(x, y, z); // gamma*beta +} + +bool PlasmaInjector::insideBounds (Real x, Real y, Real z) const noexcept +{ + return (x < xmax and x >= xmin and + y < ymax and y >= ymin and + z < zmax and z >= zmin); } -void PlasmaInjector::getMomentum(vec3& u, Real x, Real y, Real z) { - mom_dist->getMomentum(u, x, y, z); - u[0] *= PhysConst::c; - u[1] *= PhysConst::c; - u[2] *= PhysConst::c; +InjectorPosition* +PlasmaInjector::getInjectorPosition () +{ + return inj_pos.get(); } -bool PlasmaInjector::insideBounds(Real x, Real y, Real z) { - if (x >= xmax || x < xmin || - y >= ymax || y < ymin || - z >= zmax || z < zmin ) return false; - return true; +InjectorDensity* +PlasmaInjector::getInjectorDensity () +{ + return inj_rho.get(); } -Real PlasmaInjector::getDensity(Real x, Real y, Real z) { - return rho_prof->getDensity(x, y, z); +InjectorMomentum* +PlasmaInjector::getInjectorMomentum () +{ + return inj_mom.get(); } + |