ElementLoop& BoundaryTerm::access_element_loop( const std::string& type_name )
{
// ensure that the fields are present
link_fields();
// get the element loop or create it if does not exist
ElementLoop::Ptr loop;
Common::Component::Ptr cloop = get_child_ptr( "LOOP" );
if( is_null( cloop ) )
{
const std::string update_vars_type =
physical_model().get_child( RDM::Tags::update_vars() )
.as_type<Physics::Variables>()
.type();
loop = build_component_abstract_type_reduced< FaceLoop >( "FaceLoopT<" + type_name + "," + update_vars_type + ">" , "LOOP");
add_component(loop);
}
else
loop = cloop->as_ptr_checked<ElementLoop>();
return *loop;
}
void PrepareMesh::execute()
{
// configuration of all solver components.
// This component and its children should be part of it.
solver().configure_option_recursively(sdm::Tags::solution_order(),solver().options().option(sdm::Tags::solution_order()).value<Uint>());
solver().configure_option_recursively(sdm::Tags::mesh(),mesh().handle<Component>());
solver().configure_option_recursively(sdm::Tags::regions(),solver().options().option(sdm::Tags::regions()).value< std::vector<URI> >());
solver().configure_option_recursively(sdm::Tags::physical_model(),physical_model().handle<Component>());
solver().configure_option_recursively(sdm::Tags::solver(),solver().handle<Component>());
configure_option_recursively(sdm::Tags::solution_order(),solver().options().option(sdm::Tags::solution_order()).value<Uint>());
configure_option_recursively(sdm::Tags::mesh(),mesh().handle<Component>());
configure_option_recursively(sdm::Tags::regions(),solver().options().option(sdm::Tags::regions()).value< std::vector<URI> >());
configure_option_recursively(sdm::Tags::physical_model(),physical_model().handle<Component>());
configure_option_recursively(sdm::Tags::solver(),solver().handle<Component>());
// execution of prepare mesh
ActionDirector::execute();
std::vector<URI> fields;
fields.push_back( follow_link( solver().field_manager().get_child(sdm::Tags::solution()) )->uri() );
solver().handle<SDSolver>()->time_stepping().post_actions().get_child("Periodic")->configure_option_recursively("fields",fields);
solver().handle<SDSolver>()->time_stepping().post_actions().get_child("Periodic")->configure_option_recursively("file",URI("sdm_output_${time}.msh"));
}
Term& DomainDiscretization::create_term( const std::string& type,
const std::string& name,
const std::vector<URI>& regions )
{
CFinfo << "Creating cell term " << name << "(" << type << ")" << CFendl;
Handle< Term > term = m_terms->create_component<Term>(name, type);
if (regions.size() == 0)
term->options().configure_option("regions", std::vector<URI>(1,mesh().topology().uri()));
else
term->options().configure_option("regions", regions);
term->options().configure_option( SFDM::Tags::mesh(), mesh().handle<Component>());
term->options().configure_option( SFDM::Tags::solver(), solver().handle<Component>());
term->options().configure_option( SFDM::Tags::physical_model(), physical_model().handle<Component>());
return *term;
}
void LSSAction::on_regions_set()
{
if(m_implementation->m_updating) // avoid recursion
return;
m_implementation->m_lss = options().value< Handle<LSS::System> >("lss");
if(is_null(m_implementation->m_lss))
return;
if(is_null(m_dictionary))
return;
m_implementation->m_updating = true;
// Create the LSS if the mesh is set
if(!m_loop_regions.empty() && !m_implementation->m_lss->is_created())
{
VariablesDescriptor& descriptor = find_component_with_tag<VariablesDescriptor>(physical_model().variable_manager(), solution_tag());
Handle< List<Uint> > gids = m_implementation->m_lss->create_component< List<Uint> >("GIDs");
Handle< List<Uint> > ranks = m_implementation->m_lss->create_component< List<Uint> >("Ranks");
Handle< List<Uint> > used_node_map = m_implementation->m_lss->create_component< List<Uint> >("used_node_map");
std::vector<Uint> node_connectivity, starting_indices;
boost::shared_ptr< List<Uint> > used_nodes = build_sparsity(m_loop_regions, *m_dictionary, node_connectivity, starting_indices, *gids, *ranks, *used_node_map);
add_component(used_nodes);
// This comm pattern is valid only over the used nodes for the supplied regions
PE::CommPattern& comm_pattern = *create_component<PE::CommPattern>("CommPattern");
comm_pattern.insert("gid",gids->array(),false);
comm_pattern.setup(Handle<PE::CommWrapper>(comm_pattern.get_child("gid")),ranks->array());
CFdebug << "Creating LSS for " << starting_indices.size()-1 << " blocks with descriptor " << solution_tag() << ": " << descriptor.description() << CFendl;
m_implementation->m_lss->create(comm_pattern, descriptor.size(), node_connectivity, starting_indices);
CFdebug << "Finished creating LSS" << CFendl;
configure_option_recursively(solver::Tags::regions(), options().option(solver::Tags::regions()).value());
configure_option_recursively("lss", m_implementation->m_lss);
}
// Update the regions of any owned initial conditions
BOOST_FOREACH(const Handle<Component>& ic, m_created_initial_conditions)
{
ic->options().set(solver::Tags::regions(), options().option(solver::Tags::regions()).value());
}
ElementLoop& BoundaryTerm::access_element_loop( const std::string& type_name )
{
// ensure that the fields are present
link_fields();
// get the element loop or create it if does not exist
Handle< ElementLoop > loop(get_child( "LOOP" ));
if( is_null( loop ) )
{
const std::string update_vars_type =
physical_model().get_child( RDM::Tags::update_vars() )
->handle<physics::Variables>()
->type();
loop = create_component<FaceLoop>("LOOP", "FaceLoopT<" + type_name + "," + update_vars_type + ">");
}
return *loop;
}
void SetupMultipleSolutions::execute()
{
RDM::RDSolver& mysolver = solver().as_type< RDM::RDSolver >();
/* nb_levels == rkorder */
const Uint nb_levels = option("nb_levels").value<Uint>();
CMesh& mesh = *m_mesh.lock();
CGroup& fields = mysolver.fields();
// get the geometry field group
Geometry& geometry = mesh.geometry();
const std::string solution_space = mysolver.option("solution_space").value<std::string>();
// check that the geometry belongs to the same space as selected by the user
FieldGroup::Ptr solution_group;
if( solution_space == geometry.space() )
solution_group = geometry.as_ptr<FieldGroup>();
else
{
// check if solution space already exists
solution_group = find_component_ptr_with_name<FieldGroup>( mesh, RDM::Tags::solution() );
if ( is_null(solution_group) )
{
boost_foreach(CEntities& elements, mesh.topology().elements_range())
elements.create_space( RDM::Tags::solution(), "CF.Mesh.SF.SF"+elements.element_type().shape_name() + solution_space );
solution_group = mesh.create_field_group( RDM::Tags::solution(), FieldGroup::Basis::POINT_BASED).as_ptr<FieldGroup>();
}
else // not null so check that space is what user wants
{
if( solution_space != solution_group->space() )
throw NotImplemented( FromHere(), "Changing solution space not supported" );
}
}
// construct vector of variables
const Uint nbdofs = physical_model().neqs();
std::string vars;
for(Uint i = 0; i < nbdofs; ++i)
{
vars += "u" + to_str(i) + "[1]";
if( i != nbdofs-1 ) vars += ",";
}
// configure 1st solution
Field::Ptr solution = find_component_ptr_with_tag<Field>( *solution_group, RDM::Tags::solution() );
if ( is_null( solution ) )
{
solution = solution_group->create_field( RDM::Tags::solution(), vars ).as_ptr<Field>();
solution->add_tag(Tags::solution());
}
// create the other solutions based on the first solution field
std::vector< Field::Ptr > rk_steps;
rk_steps.push_back(solution);
for(Uint step = 1; step < nb_levels; ++step)
{
Field::Ptr solution_k = find_component_ptr_with_tag<Field>( *solution_group, RDM::Tags::solution() + to_str(step));
if ( is_null( solution_k ) )
{
std::string name = std::string(Tags::solution()) + to_str(step);
solution_k = solution_group->create_field( name, solution->descriptor().description() ).as_ptr<Field>();
solution_k->descriptor().prefix_variable_names("rk" + to_str(step) + "_");
solution_k->add_tag("rksteps");
}
cf_assert( solution_k );
rk_steps.push_back(solution_k);
}
/// @todo here we should check if space() order is correct,
/// if not the change space() by enriching or other appropriate action
// configure residual
Field::Ptr residual = find_component_ptr_with_tag<Field>( *solution_group, RDM::Tags::residual());
if ( is_null( residual ) )
{
residual = solution_group->create_field(Tags::residual(), solution->descriptor().description() ).as_ptr<Field>();
residual->descriptor().prefix_variable_names("rhs_");
residual->add_tag(Tags::residual());
}
// configure wave_speed
Field::Ptr wave_speed = find_component_ptr_with_tag<Field>( *solution_group, RDM::Tags::wave_speed());
if ( is_null( wave_speed ) )
{
wave_speed = solution_group->create_field(Tags::wave_speed(), "ws[1]" ).as_ptr<Field>();
wave_speed->add_tag(Tags::wave_speed());
}
// create links
if( ! fields.get_child_ptr( solution->name() ) )
fields.create_component<CLink>( solution->name() ).link_to(solution).add_tag(RDM::Tags::solution());
if( ! fields.get_child_ptr( RDM::Tags::residual() ) )
fields.create_component<CLink>( RDM::Tags::residual() ).link_to(residual).add_tag(RDM::Tags::residual());
if( ! fields.get_child_ptr( RDM::Tags::wave_speed() ) )
fields.create_component<CLink>( RDM::Tags::wave_speed() ).link_to(wave_speed).add_tag(RDM::Tags::wave_speed());
for( Uint step = 1; step < rk_steps.size(); ++step)
{
if( ! fields.get_child_ptr( rk_steps[step]->name() ) )
fields.create_component<CLink>( rk_steps[step]->name() ).link_to(solution).add_tag("rksteps");
}
// parallelize the solution if not yet done
CommPattern& pattern = solution->parallelize();
std::vector<URI> parallel_fields;
parallel_fields.push_back( solution->uri() );
for(Uint step = 1; step < nb_levels; ++step)
{
rk_steps[step]->parallelize_with( pattern );
parallel_fields.push_back( rk_steps[step]->uri() );
}
mysolver.actions().get_child("Synchronize").configure_option("Fields", parallel_fields);
// std::cout << "solution " << solution->uri().string() << std::endl;
// std::cout << "residual " << residual->uri().string() << std::endl;
// std::cout << "wave_speed " << wave_speed->uri().string() << std::endl;
}
void YPlus::execute()
{
Mesh& mesh = this->mesh();
// Geometry data
const Field& coords = mesh.geometry_fields().coordinates();
const Uint nb_nodes = coords.size();
const Uint dim = coords.row_size();
// Velocity data
const Field& velocity_field = common::find_component_recursively_with_tag<Field>(mesh, options().value<std::string>("velocity_tag"));
const auto velocity_dict_handle = Handle<Dictionary const>(velocity_field.parent());
cf3_assert(velocity_dict_handle != nullptr);
const Dictionary& velocity_dict = *velocity_dict_handle;
const Uint vel_offset = velocity_field.descriptor().offset("Velocity");
// initialize if needed
auto volume_node_connectivity = Handle<NodeConnectivity>(mesh.get_child("volume_node_connectivity"));
if(m_normals.empty())
{
// Node-to-element connectivity for the volume elements
volume_node_connectivity = mesh.create_component<NodeConnectivity>("volume_node_connectivity");
std::vector< Handle<Entities const> > volume_entities;
for(const mesh::Elements& elements : common::find_components_recursively_with_filter<mesh::Elements>(mesh, IsElementsVolume()))
{
volume_entities.push_back(elements.handle<Entities const>());
}
volume_node_connectivity->initialize(nb_nodes, volume_entities);
mesh.geometry_fields().create_field("wall_velocity_gradient_nodal").add_tag("wall_velocity_gradient_nodal");
Dictionary& wall_P0 = *mesh.create_component<DiscontinuousDictionary>("wall_P0");
m_normals.clear();
for(const Handle<Region>& region : regions())
{
for(mesh::Elements& wall_entity : common::find_components_recursively_with_filter<mesh::Elements>(*region, IsElementsSurface()))
{
const Uint nb_elems = wall_entity.size();
const auto& geom_conn = wall_entity.geometry_space().connectivity();
const ElementType& etype = wall_entity.element_type();
const Uint element_nb_nodes = etype.nb_nodes();
m_normals.push_back(std::vector<RealVector>(nb_elems, RealVector(dim)));
RealMatrix elem_coords(element_nb_nodes, dim);
for(Uint elem_idx = 0; elem_idx != nb_elems; ++elem_idx)
{
const Connectivity::ConstRow conn_row = geom_conn[elem_idx];
fill(elem_coords, coords, conn_row);
RealVector normal(dim);
etype.compute_normal(elem_coords, m_normals.back()[elem_idx]);
m_normals.back()[elem_idx] /= m_normals.back()[elem_idx].norm();
}
wall_entity.create_component<FaceConnectivity>("wall_face_connectivity")->initialize(*volume_node_connectivity);
wall_entity.create_space("cf3.mesh.LagrangeP0."+wall_entity.element_type().shape_name(),wall_P0);
}
}
wall_P0.build(); // to tell the dictionary that all spaces have been added
mesh.update_structures(); // to tell the mesh there is a new dictionary added manually
wall_P0.create_field("wall_velocity_gradient").add_tag("wall_velocity_gradient");
}
// Create the y+ field in the geometry dictionary
if(common::find_component_ptr_with_tag(mesh.geometry_fields(), "yplus") == nullptr)
{
mesh.geometry_fields().create_field("yplus").add_tag("yplus");
}
// Compute shear stress
Uint surface_idx = 0;
Dictionary& wall_P0 = *Handle<mesh::Dictionary>(mesh.get_child_checked("wall_P0"));
Field& wall_velocity_gradient_field = *Handle<Field>(wall_P0.get_child_checked("wall_velocity_gradient"));
for(const Handle<Region>& region : regions())
{
for(const mesh::Elements& elements : common::find_components_recursively_with_filter<mesh::Elements>(*region, IsElementsSurface()))
{
const Uint nb_elements = elements.geometry_space().connectivity().size();
cf3_assert(elements.element_type().nb_faces() == 1);
const auto& face_connectivity = *Handle<FaceConnectivity const>(elements.get_child_checked("wall_face_connectivity"));
const auto& wall_conn = elements.space(wall_P0).connectivity();
for(Uint surface_elm_idx = 0; surface_elm_idx != nb_elements; ++surface_elm_idx)
{
if(face_connectivity.has_adjacent_element(surface_elm_idx, 0))
{
const Uint wall_field_idx = wall_conn[surface_elm_idx][0];
// Get the wall normal vector
const RealVector& normal = m_normals[surface_idx][surface_elm_idx];
RealVector3 normal3;
normal3[0] = normal[0];
normal3[1] = normal[1];
normal3[2] = dim == 3 ? normal[2] : 0.;
// The connected volume element
NodeConnectivity::ElementReferenceT connected = face_connectivity.adjacent_element(surface_elm_idx, 0);
const mesh::Entities& volume_entities = *face_connectivity.node_connectivity().entities()[connected.first];
const Uint volume_elem_idx = connected.second;
const auto& velocity_conn = volume_entities.space(velocity_dict).connectivity();
const auto& velocity_sf = volume_entities.space(velocity_dict).shape_function();
const auto& geom_conn = volume_entities.geometry_space().connectivity();
const ElementType& volume_etype = volume_entities.element_type();
const Uint nb_vel_nodes = velocity_sf.nb_nodes();
const RealVector centroid_mapped_coord = 0.5*(velocity_sf.local_coordinates().colwise().minCoeff() + velocity_sf.local_coordinates().colwise().maxCoeff());
RealMatrix elem_coords(geom_conn.row_size(), dim);
fill(elem_coords, coords, geom_conn[volume_elem_idx]);
RealVector tangential_velocity(nb_vel_nodes); // For every node, the component of the velocity tangential to the wall
RealVector3 v3;
for(Uint i = 0; i != nb_vel_nodes; ++i)
{
Eigen::Map<RealVector const> v(&velocity_field[velocity_conn[volume_elem_idx][i]][vel_offset], dim);
v3[0] = v[0];
v3[1] = v[1];
v3[2] = dim == 3 ? v[2] : 0.;
tangential_velocity[i] = v3.cross(normal3).norm();
}
wall_velocity_gradient_field[wall_field_idx][0] = fabs((volume_etype.jacobian(centroid_mapped_coord, elem_coords).inverse() * velocity_sf.gradient(centroid_mapped_coord) * tangential_velocity).dot(-normal));
}
}
++surface_idx;
}
}
wall_velocity_gradient_field.synchronize();
// Compute a nodal version of the wall velocity gradient
const auto& wall_node_connectivity = *Handle<NodeConnectivity>(mesh.get_child_checked("wall_node_connectivity"));
Field& wall_velocity_gradient_field_nodal = *Handle<Field>(mesh.geometry_fields().get_child_checked("wall_velocity_gradient_nodal"));
for(Uint node_idx = 0; node_idx != nb_nodes; ++node_idx)
{
Uint nb_connected_elems = 0;
wall_velocity_gradient_field_nodal[node_idx][0] = 0;
for(const NodeConnectivity::ElementReferenceT elref : wall_node_connectivity.node_element_range(node_idx))
{
const Uint wall_field_idx = wall_node_connectivity.entities()[elref.first]->space(wall_P0).connectivity()[elref.second][0];
wall_velocity_gradient_field_nodal[node_idx][0] += wall_velocity_gradient_field[wall_field_idx][0];
++nb_connected_elems;
}
if(nb_connected_elems != 0)
{
wall_velocity_gradient_field_nodal[node_idx][0] /= static_cast<Real>(nb_connected_elems);
}
}
// Set Yplus
Field& yplus_field = *Handle<Field>(mesh.geometry_fields().get_child_checked("yplus"));
const Field& wall_distance_field = *Handle<Field>(mesh.geometry_fields().get_child_checked("wall_distance"));
const auto& node_to_wall_element = *Handle<common::Table<Uint>>(mesh.get_child_checked("node_to_wall_element"));
const Real nu = physical_model().options().value<Real>("kinematic_viscosity");
for(Uint node_idx = 0; node_idx != nb_nodes; ++node_idx)
{
yplus_field[node_idx][0] = 0;
if(node_to_wall_element[node_idx][0] != 0)
{
const Entities& wall_entities = *wall_node_connectivity.entities()[node_to_wall_element[node_idx][1]];
const Uint wall_field_idx = wall_entities.space(wall_P0).connectivity()[node_to_wall_element[node_idx][2]][0];
yplus_field[node_idx][0] = wall_distance_field[node_idx][0] * sqrt(nu*wall_velocity_gradient_field[wall_field_idx][0]) / nu;
}
else
{
yplus_field[node_idx][0] = wall_distance_field[node_idx][0] * sqrt(nu*wall_velocity_gradient_field_nodal[node_to_wall_element[node_idx][1]][0]) / nu;
}
}
}
void SetupSingleSolution::execute()
{
RDM::RDSolver& mysolver = *solver().handle< RDM::RDSolver >();
if(is_null(m_mesh))
throw SetupError(FromHere(), "SetupSingleSolution has no configured mesh in [" + uri().string() + "]" );
Mesh& mesh = *m_mesh;
Group& fields = mysolver.fields();
const Uint nbdofs = physical_model().neqs();
// get the geometry field group
SpaceFields& geometry = mesh.geometry_fields();
const std::string solution_space = mysolver.options().option("solution_space").value<std::string>();
// check that the geometry belongs to the same space as selected by the user
Handle< SpaceFields > solution_group;
if( solution_space == geometry.space() )
solution_group = geometry.handle<SpaceFields>();
else
{
// check if solution space already exists
solution_group = find_component_ptr_with_name<SpaceFields>( mesh, RDM::Tags::solution() );
if ( is_null(solution_group) )
{
solution_group = mesh.create_space_and_field_group( RDM::Tags::solution(), SpaceFields::Basis::POINT_BASED, "cf3.mesh."+solution_space).handle<SpaceFields>();
}
else // not null so check that space is what user wants
{
if( solution_space != solution_group->space() )
throw NotImplemented( FromHere(), "Changing solution space not supported" );
}
}
solution_group->add_tag( solution_space );
// configure solution
Handle< Field > solution = find_component_ptr_with_tag<Field>( *solution_group, RDM::Tags::solution() );
if ( is_null( solution ) )
{
std::string vars;
for(Uint i = 0; i < nbdofs; ++i)
{
vars += "u" + to_str(i) + "[1]";
if( i != nbdofs-1 ) vars += ",";
}
solution = solution_group->create_field( RDM::Tags::solution(), vars ).handle<Field>();
solution->add_tag(RDM::Tags::solution());
}
/// @todo here we should check if space() order is correct,
/// if not the change space() by enriching or other appropriate action
// configure residual
Handle< Field > residual = find_component_ptr_with_tag<Field>( *solution_group, RDM::Tags::residual());
if ( is_null( residual ) )
{
residual = solution_group->create_field(Tags::residual(), solution->descriptor().description() ).handle<Field>();
residual->descriptor().prefix_variable_names("rhs_");
residual->add_tag(Tags::residual());
}
// configure wave_speed
Handle< Field > wave_speed = find_component_ptr_with_tag<Field>( *solution_group, RDM::Tags::wave_speed());
if ( is_null( wave_speed ) )
{
wave_speed = solution_group->create_field( Tags::wave_speed(), "ws[1]" ).handle<Field>();
wave_speed->add_tag(Tags::wave_speed());
}
// place link to the fields in the Fields group
if( ! fields.get_child( RDM::Tags::solution() ) )
fields.create_component<Link>( RDM::Tags::solution() )->link_to(*solution).add_tag(RDM::Tags::solution());
if( ! fields.get_child( RDM::Tags::residual() ) )
fields.create_component<Link>( RDM::Tags::residual() )->link_to(*residual).add_tag(RDM::Tags::residual());
if( ! fields.get_child( RDM::Tags::wave_speed() ) )
fields.create_component<Link>( RDM::Tags::wave_speed() )->link_to(*wave_speed).add_tag(RDM::Tags::wave_speed());
/// @todo apply here the bubble insertion if needed
// parallelize the solution if not yet done
solution->parallelize();
std::vector<URI> sync_fields;
sync_fields.push_back( solution->uri() );
mysolver.actions().get_child("Synchronize")->options().configure_option("Fields", sync_fields);
}