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heat_transfer_model.cc
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/**
* @file heat_transfer_model.cc
*
* @author Guillaume Anciaux <guillaume.anciaux@epfl.ch>
* @author Lucas Frerot <lucas.frerot@epfl.ch>
* @author Emil Gallyamov <emil.gallyamov@epfl.ch>
* @author David Simon Kammer <david.kammer@epfl.ch>
* @author Srinivasa Babu Ramisetti <srinivasa.ramisetti@epfl.ch>
* @author Nicolas Richart <nicolas.richart@epfl.ch>
* @author Rui Wang <rui.wang@epfl.ch>
*
* @date creation: Sun May 01 2011
* @date last modification: Fri Apr 09 2021
*
* @brief Implementation of HeatTransferModel class
*
*
* @section LICENSE
*
* Copyright (©) 2010-2021 EPFL (Ecole Polytechnique Fédérale de Lausanne)
* Laboratory (LSMS - Laboratoire de Simulation en Mécanique des Solides)
*
* Akantu is free software: you can redistribute it and/or modify it under the
* terms of the GNU Lesser General Public License as published by the Free
* Software Foundation, either version 3 of the License, or (at your option) any
* later version.
*
* Akantu is distributed in the hope that it will be useful, but WITHOUT ANY
* WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
* A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
* details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with Akantu. If not, see <http://www.gnu.org/licenses/>.
*
*/
/* -------------------------------------------------------------------------- */
#include "heat_transfer_model.hh"
#include "dumpable_inline_impl.hh"
#include "element_synchronizer.hh"
#include "fe_engine_template.hh"
#include "generalized_trapezoidal.hh"
#include "group_manager_inline_impl.hh"
#include "integrator_gauss.hh"
#include "mesh.hh"
#include "parser.hh"
#include "shape_lagrange.hh"
/* -------------------------------------------------------------------------- */
#include "dumper_element_partition.hh"
#include "dumper_elemental_field.hh"
#include "dumper_internal_material_field.hh"
#include "dumper_iohelper_paraview.hh"
/* -------------------------------------------------------------------------- */
namespace akantu {
namespace heat_transfer {
namespace details {
class ComputeRhoFunctor {
public:
ComputeRhoFunctor(const HeatTransferModel & model) : model(model){};
void operator()(Matrix<Real> & rho, const Element & /*unused*/) {
rho.set(model.getCapacity() * model.getDensity());
}
private:
const HeatTransferModel & model;
};
} // namespace details
} // namespace heat_transfer
/* -------------------------------------------------------------------------- */
HeatTransferModel::HeatTransferModel(Mesh & mesh, UInt dim, const ID & id,
std::shared_ptr<DOFManager> dof_manager)
: Model(mesh, ModelType::_heat_transfer_model, dim, id),
temperature_gradient("temperature_gradient", id),
temperature_on_qpoints("temperature_on_qpoints", id),
conductivity_on_qpoints("conductivity_on_qpoints", id),
k_gradt_on_qpoints("k_gradt_on_qpoints", id) {
AKANTU_DEBUG_IN();
this->initDOFManager(dof_manager);
conductivity = Matrix<Real>(this->spatial_dimension, this->spatial_dimension);
this->registerDataAccessor(*this);
if (this->mesh.isDistributed()) {
auto & synchronizer = this->mesh.getElementSynchronizer();
this->registerSynchronizer(synchronizer,
SynchronizationTag::_htm_temperature);
this->registerSynchronizer(synchronizer,
SynchronizationTag::_htm_gradient_temperature);
}
registerFEEngineObject<FEEngineType>(id + ":fem", mesh, spatial_dimension);
this->mesh.registerDumper<DumperParaview>("heat_transfer", id, true);
this->mesh.addDumpMesh(mesh, spatial_dimension, _not_ghost, _ek_regular);
this->registerParam("conductivity", conductivity, _pat_parsmod);
this->registerParam("conductivity_variation", conductivity_variation, 0.,
_pat_parsmod);
this->registerParam("temperature_reference", T_ref, 0., _pat_parsmod);
this->registerParam("capacity", capacity, _pat_parsmod);
this->registerParam("density", density, _pat_parsmod);
AKANTU_DEBUG_OUT();
}
/* -------------------------------------------------------------------------- */
void HeatTransferModel::initModel() {
auto & fem = this->getFEEngine();
fem.initShapeFunctions(_not_ghost);
fem.initShapeFunctions(_ghost);
temperature_on_qpoints.initialize(fem, _nb_component = 1);
temperature_gradient.initialize(fem, _nb_component = spatial_dimension);
conductivity_on_qpoints.initialize(fem, _nb_component = spatial_dimension *
spatial_dimension);
k_gradt_on_qpoints.initialize(fem, _nb_component = spatial_dimension);
}
/* -------------------------------------------------------------------------- */
FEEngine & HeatTransferModel::getFEEngineBoundary(const ID & name) {
return aka::as_type<FEEngine>(getFEEngineClassBoundary<FEEngineType>(name));
}
/* -------------------------------------------------------------------------- */
HeatTransferModel::~HeatTransferModel() = default;
/* -------------------------------------------------------------------------- */
void HeatTransferModel::assembleCapacityLumped(GhostType ghost_type) {
AKANTU_DEBUG_IN();
auto & fem = getFEEngineClass<FEEngineType>();
heat_transfer::details::ComputeRhoFunctor compute_rho(*this);
for (auto && type :
mesh.elementTypes(spatial_dimension, ghost_type, _ek_regular)) {
fem.assembleFieldLumped(compute_rho, "M", "temperature",
this->getDOFManager(), type, ghost_type);
}
AKANTU_DEBUG_OUT();
}
/* -------------------------------------------------------------------------- */
MatrixType HeatTransferModel::getMatrixType(const ID & matrix_id) const {
if (matrix_id == "K" or matrix_id == "M") {
return _symmetric;
}
return _mt_not_defined;
}
/* -------------------------------------------------------------------------- */
void HeatTransferModel::assembleMatrix(const ID & matrix_id) {
if (matrix_id == "K") {
this->assembleConductivityMatrix();
} else if (matrix_id == "M" and need_to_reassemble_capacity) {
this->assembleCapacity();
}
}
/* -------------------------------------------------------------------------- */
void HeatTransferModel::assembleLumpedMatrix(const ID & matrix_id) {
if (matrix_id == "M" and need_to_reassemble_capacity) {
this->assembleCapacityLumped();
}
}
/* -------------------------------------------------------------------------- */
void HeatTransferModel::assembleResidual() {
AKANTU_DEBUG_IN();
this->assembleInternalHeatRate();
this->getDOFManager().assembleToResidual("temperature",
*this->external_heat_rate, 1);
this->getDOFManager().assembleToResidual("temperature",
*this->internal_heat_rate, 1);
AKANTU_DEBUG_OUT();
}
/* -------------------------------------------------------------------------- */
void HeatTransferModel::predictor() { ++temperature_release; }
/* -------------------------------------------------------------------------- */
void HeatTransferModel::assembleCapacityLumped() {
AKANTU_DEBUG_IN();
if (!this->getDOFManager().hasLumpedMatrix("M")) {
this->getDOFManager().getNewLumpedMatrix("M");
}
this->getDOFManager().zeroLumpedMatrix("M");
assembleCapacityLumped(_not_ghost);
assembleCapacityLumped(_ghost);
need_to_reassemble_capacity_lumped = false;
AKANTU_DEBUG_OUT();
}
/* -------------------------------------------------------------------------- */
void HeatTransferModel::initSolver(TimeStepSolverType time_step_solver_type,
NonLinearSolverType /*unused*/) {
DOFManager & dof_manager = this->getDOFManager();
this->allocNodalField(this->temperature, 1, "temperature");
this->allocNodalField(this->external_heat_rate, 1, "external_heat_rate");
this->allocNodalField(this->internal_heat_rate, 1, "internal_heat_rate");
this->allocNodalField(this->blocked_dofs, 1, "blocked_dofs");
if (!dof_manager.hasDOFs("temperature")) {
dof_manager.registerDOFs("temperature", *this->temperature, _dst_nodal);
dof_manager.registerBlockedDOFs("temperature", *this->blocked_dofs);
}
if (time_step_solver_type == TimeStepSolverType::_dynamic ||
time_step_solver_type == TimeStepSolverType::_dynamic_lumped) {
this->allocNodalField(this->temperature_rate, 1, "temperature_rate");
if (!dof_manager.hasDOFsDerivatives("temperature", 1)) {
dof_manager.registerDOFsDerivative("temperature", 1,
*this->temperature_rate);
}
}
}
/* -------------------------------------------------------------------------- */
std::tuple<ID, TimeStepSolverType>
HeatTransferModel::getDefaultSolverID(const AnalysisMethod & method) {
switch (method) {
case _explicit_lumped_mass: {
return std::make_tuple("explicit_lumped",
TimeStepSolverType::_dynamic_lumped);
}
case _static: {
return std::make_tuple("static", TimeStepSolverType::_static);
}
case _implicit_dynamic: {
return std::make_tuple("implicit", TimeStepSolverType::_dynamic);
}
default:
return std::make_tuple("unknown", TimeStepSolverType::_not_defined);
}
}
/* -------------------------------------------------------------------------- */
ModelSolverOptions HeatTransferModel::getDefaultSolverOptions(
const TimeStepSolverType & type) const {
ModelSolverOptions options;
switch (type) {
case TimeStepSolverType::_dynamic_lumped: {
options.non_linear_solver_type = NonLinearSolverType::_lumped;
options.integration_scheme_type["temperature"] =
IntegrationSchemeType::_forward_euler;
options.solution_type["temperature"] = IntegrationScheme::_temperature_rate;
break;
}
case TimeStepSolverType::_static: {
options.non_linear_solver_type = NonLinearSolverType::_newton_raphson;
options.integration_scheme_type["temperature"] =
IntegrationSchemeType::_pseudo_time;
options.solution_type["temperature"] = IntegrationScheme::_not_defined;
break;
}
case TimeStepSolverType::_dynamic: {
if (this->method == _explicit_consistent_mass) {
options.non_linear_solver_type = NonLinearSolverType::_newton_raphson;
options.integration_scheme_type["temperature"] =
IntegrationSchemeType::_forward_euler;
options.solution_type["temperature"] =
IntegrationScheme::_temperature_rate;
} else {
options.non_linear_solver_type = NonLinearSolverType::_newton_raphson;
options.integration_scheme_type["temperature"] =
IntegrationSchemeType::_backward_euler;
options.solution_type["temperature"] = IntegrationScheme::_temperature;
}
break;
}
default:
AKANTU_EXCEPTION(type << " is not a valid time step solver type");
}
return options;
}
/* -------------------------------------------------------------------------- */
void HeatTransferModel::assembleConductivityMatrix() {
AKANTU_DEBUG_IN();
this->computeConductivityOnQuadPoints(_not_ghost);
if (conductivity_release[_not_ghost] == conductivity_matrix_release) {
return;
}
AKANTU_DEBUG_ASSERT(this->getDOFManager().hasMatrix("K"),
"The K matrix has not been initialized yet.");
this->getDOFManager().zeroMatrix("K");
auto & fem = this->getFEEngine();
for (auto && type : mesh.elementTypes(spatial_dimension)) {
auto nb_element = mesh.getNbElement(type);
auto nb_nodes_per_element = Mesh::getNbNodesPerElement(type);
auto nb_quadrature_points = fem.getNbIntegrationPoints(type);
auto bt_d_b = std::make_unique<Array<Real>>(
nb_element * nb_quadrature_points,
nb_nodes_per_element * nb_nodes_per_element, "B^t*D*B");
fem.computeBtDB(conductivity_on_qpoints(type), *bt_d_b, 2, type);
/// compute @f$ k_e = \int_e \mathbf{B}^t * \mathbf{D} * \mathbf{B}@f$
auto K_e = std::make_unique<Array<Real>>(
nb_element, nb_nodes_per_element * nb_nodes_per_element, "K_e");
fem.integrate(*bt_d_b, *K_e, nb_nodes_per_element * nb_nodes_per_element,
type);
this->getDOFManager().assembleElementalMatricesToMatrix(
"K", "temperature", *K_e, type, _not_ghost, _symmetric);
}
conductivity_matrix_release = conductivity_release[_not_ghost];
AKANTU_DEBUG_OUT();
}
/* -------------------------------------------------------------------------- */
void HeatTransferModel::computeConductivityOnQuadPoints(GhostType ghost_type) {
// if already computed once check if need to compute
if (not initial_conductivity[ghost_type]) {
// if temperature did not change, conductivity will not vary
if (temperature_release == conductivity_release[ghost_type]) {
return;
}
// if conductivity_variation is 0 no need to recompute
if (conductivity_variation == 0.) {
return;
}
}
for (auto && type :
mesh.elementTypes(spatial_dimension, ghost_type, _ek_regular)) {
auto & temperature_interpolated = temperature_on_qpoints(type, ghost_type);
// compute the temperature on quadrature points
this->getFEEngine().interpolateOnIntegrationPoints(
*temperature, temperature_interpolated, 1, type, ghost_type);
auto & cond = conductivity_on_qpoints(type, ghost_type);
for (auto && tuple :
zip(make_view(cond, spatial_dimension, spatial_dimension),
temperature_interpolated)) {
auto & C = std::get<0>(tuple);
auto & T = std::get<1>(tuple);
C = conductivity;
Matrix<Real> variation(spatial_dimension, spatial_dimension,
conductivity_variation * (T - T_ref));
// @TODO: Guillaume are you sure ? why due you compute variation then ?
C += conductivity_variation;
}
}
conductivity_release[ghost_type] = temperature_release;
initial_conductivity[ghost_type] = false;
AKANTU_DEBUG_OUT();
}
/* -------------------------------------------------------------------------- */
void HeatTransferModel::computeKgradT(GhostType ghost_type) {
computeConductivityOnQuadPoints(ghost_type);
for (auto && type :
mesh.elementTypes(spatial_dimension, ghost_type, _ek_regular)) {
auto & gradient = temperature_gradient(type, ghost_type);
this->getFEEngine().gradientOnIntegrationPoints(*temperature, gradient, 1,
type, ghost_type);
for (auto && values :
zip(make_view(conductivity_on_qpoints(type, ghost_type),
spatial_dimension, spatial_dimension),
make_view(gradient, spatial_dimension),
make_view(k_gradt_on_qpoints(type, ghost_type),
spatial_dimension))) {
const auto & C = std::get<0>(values);
const auto & BT = std::get<1>(values);
auto & k_BT = std::get<2>(values);
k_BT.mul<false>(C, BT);
}
}
AKANTU_DEBUG_OUT();
}
/* -------------------------------------------------------------------------- */
void HeatTransferModel::assembleInternalHeatRate() {
AKANTU_DEBUG_IN();
this->internal_heat_rate->zero();
this->synchronize(SynchronizationTag::_htm_temperature);
auto & fem = this->getFEEngine();
for (auto ghost_type : ghost_types) {
// compute k \grad T
computeKgradT(ghost_type);
for (auto type :
mesh.elementTypes(spatial_dimension, ghost_type, _ek_regular)) {
UInt nb_nodes_per_element = Mesh::getNbNodesPerElement(type);
auto & k_gradt_on_qpoints_vect = k_gradt_on_qpoints(type, ghost_type);
UInt nb_quad_points = k_gradt_on_qpoints_vect.size();
Array<Real> bt_k_gT(nb_quad_points, nb_nodes_per_element);
fem.computeBtD(k_gradt_on_qpoints_vect, bt_k_gT, type, ghost_type);
UInt nb_elements = mesh.getNbElement(type, ghost_type);
Array<Real> int_bt_k_gT(nb_elements, nb_nodes_per_element);
fem.integrate(bt_k_gT, int_bt_k_gT, nb_nodes_per_element, type,
ghost_type);
this->getDOFManager().assembleElementalArrayLocalArray(
int_bt_k_gT, *this->internal_heat_rate, type, ghost_type, -1);
}
}
AKANTU_DEBUG_OUT();
}
/* -------------------------------------------------------------------------- */
Real HeatTransferModel::getStableTimeStep() {
AKANTU_DEBUG_IN();
Real el_size;
Real min_el_size = std::numeric_limits<Real>::max();
Real conductivitymax = conductivity(0, 0);
// get the biggest parameter from k11 until k33//
for (UInt i = 0; i < spatial_dimension; i++) {
for (UInt j = 0; j < spatial_dimension; j++) {
conductivitymax = std::max(conductivity(i, j), conductivitymax);
}
}
for (auto && type :
mesh.elementTypes(spatial_dimension, _not_ghost, _ek_regular)) {
UInt nb_nodes_per_element = mesh.getNbNodesPerElement(type);
Array<Real> coord(0, nb_nodes_per_element * spatial_dimension);
FEEngine::extractNodalToElementField(mesh, mesh.getNodes(), coord, type,
_not_ghost);
auto el_coord = coord.begin(spatial_dimension, nb_nodes_per_element);
UInt nb_element = mesh.getNbElement(type);
for (UInt el = 0; el < nb_element; ++el, ++el_coord) {
el_size = getFEEngine().getElementInradius(*el_coord, type);
min_el_size = std::min(min_el_size, el_size);
}
AKANTU_DEBUG_INFO("The minimum element size : "
<< min_el_size
<< " and the max conductivity is : " << conductivitymax);
}
Real min_dt = 2. * min_el_size * min_el_size / 4. * density * capacity /
conductivitymax;
mesh.getCommunicator().allReduce(min_dt, SynchronizerOperation::_min);
AKANTU_DEBUG_OUT();
return min_dt;
}
/* -------------------------------------------------------------------------- */
void HeatTransferModel::setTimeStep(Real time_step, const ID & solver_id) {
Model::setTimeStep(time_step, solver_id);
this->mesh.getDumper("heat_transfer").setTimeStep(time_step);
}
/* -------------------------------------------------------------------------- */
void HeatTransferModel::readMaterials() {
auto sect = this->getParserSection();
if (not std::get<1>(sect)) {
const auto & section = std::get<0>(sect);
this->parseSection(section);
}
conductivity_on_qpoints.set(conductivity);
}
/* -------------------------------------------------------------------------- */
void HeatTransferModel::initFullImpl(const ModelOptions & options) {
Model::initFullImpl(options);
readMaterials();
}
/* -------------------------------------------------------------------------- */
void HeatTransferModel::assembleCapacity() {
AKANTU_DEBUG_IN();
auto ghost_type = _not_ghost;
this->getDOFManager().zeroMatrix("M");
auto & fem = getFEEngineClass<FEEngineType>();
heat_transfer::details::ComputeRhoFunctor rho_functor(*this);
for (auto && type :
mesh.elementTypes(spatial_dimension, ghost_type, _ek_regular)) {
fem.assembleFieldMatrix(rho_functor, "M", "temperature",
this->getDOFManager(), type, ghost_type);
}
need_to_reassemble_capacity = false;
AKANTU_DEBUG_OUT();
}
/* -------------------------------------------------------------------------- */
void HeatTransferModel::computeRho(Array<Real> & rho, ElementType type,
GhostType ghost_type) {
AKANTU_DEBUG_IN();
FEEngine & fem = this->getFEEngine();
UInt nb_element = mesh.getNbElement(type, ghost_type);
UInt nb_quadrature_points = fem.getNbIntegrationPoints(type, ghost_type);
rho.resize(nb_element * nb_quadrature_points);
rho.set(this->capacity);
// Real * rho_1_val = rho.storage();
// /// compute @f$ rho @f$ for each nodes of each element
// for (UInt el = 0; el < nb_element; ++el) {
// for (UInt n = 0; n < nb_quadrature_points; ++n) {
// *rho_1_val++ = this->capacity;
// }
// }
AKANTU_DEBUG_OUT();
}
/* -------------------------------------------------------------------------- */
Real HeatTransferModel::computeThermalEnergyByNode() {
AKANTU_DEBUG_IN();
Real ethermal = 0.;
for (auto && pair : enumerate(make_view(
*internal_heat_rate, internal_heat_rate->getNbComponent()))) {
auto n = std::get<0>(pair);
auto & heat_rate = std::get<1>(pair);
Real heat = 0.;
bool is_local_node = mesh.isLocalOrMasterNode(n);
bool count_node = is_local_node;
for (UInt i = 0; i < heat_rate.size(); ++i) {
if (count_node) {
heat += heat_rate[i] * time_step;
}
}
ethermal += heat;
}
mesh.getCommunicator().allReduce(ethermal, SynchronizerOperation::_sum);
AKANTU_DEBUG_OUT();
return ethermal;
}
/* -------------------------------------------------------------------------- */
template <class iterator>
void HeatTransferModel::getThermalEnergy(
iterator Eth, Array<Real>::const_iterator<Real> T_it,
const Array<Real>::const_iterator<Real> & T_end) const {
for (; T_it != T_end; ++T_it, ++Eth) {
*Eth = capacity * density * *T_it;
}
}
/* -------------------------------------------------------------------------- */
Real HeatTransferModel::getThermalEnergy(ElementType type, UInt index) {
AKANTU_DEBUG_IN();
UInt nb_quadrature_points = getFEEngine().getNbIntegrationPoints(type);
Vector<Real> Eth_on_quarature_points(nb_quadrature_points);
auto T_it = this->temperature_on_qpoints(type).begin();
T_it += index * nb_quadrature_points;
auto T_end = T_it + nb_quadrature_points;
getThermalEnergy(Eth_on_quarature_points.storage(), T_it, T_end);
return getFEEngine().integrate(Eth_on_quarature_points, type, index);
}
/* -------------------------------------------------------------------------- */
Real HeatTransferModel::getThermalEnergy() {
Real Eth = 0;
auto & fem = getFEEngine();
for (auto && type :
mesh.elementTypes(spatial_dimension, _not_ghost, _ek_regular)) {
auto nb_element = mesh.getNbElement(type, _not_ghost);
auto nb_quadrature_points = fem.getNbIntegrationPoints(type, _not_ghost);
Array<Real> Eth_per_quad(nb_element * nb_quadrature_points, 1);
auto & temperature_interpolated = temperature_on_qpoints(type);
// compute the temperature on quadrature points
this->getFEEngine().interpolateOnIntegrationPoints(
*temperature, temperature_interpolated, 1, type);
auto T_it = temperature_interpolated.begin();
auto T_end = temperature_interpolated.end();
getThermalEnergy(Eth_per_quad.begin(), T_it, T_end);
Eth += fem.integrate(Eth_per_quad, type);
}
return Eth;
}
/* -------------------------------------------------------------------------- */
Real HeatTransferModel::getEnergy(const std::string & id) {
AKANTU_DEBUG_IN();
Real energy = 0;
if (id == "thermal") {
energy = getThermalEnergy();
}
// reduction sum over all processors
mesh.getCommunicator().allReduce(energy, SynchronizerOperation::_sum);
AKANTU_DEBUG_OUT();
return energy;
}
/* -------------------------------------------------------------------------- */
Real HeatTransferModel::getEnergy(const std::string & id, ElementType type,
UInt index) {
AKANTU_DEBUG_IN();
Real energy = 0.;
if (id == "thermal") {
energy = getThermalEnergy(type, index);
}
AKANTU_DEBUG_OUT();
return energy;
}
/* -------------------------------------------------------------------------- */
std::shared_ptr<dumpers::Field> HeatTransferModel::createNodalFieldBool(
const std::string & field_name, const std::string & group_name,
__attribute__((unused)) bool padding_flag) {
std::map<std::string, Array<bool> *> uint_nodal_fields;
uint_nodal_fields["blocked_dofs"] = blocked_dofs.get();
auto field = mesh.createNodalField(uint_nodal_fields[field_name], group_name);
return field;
}
/* -------------------------------------------------------------------------- */
std::shared_ptr<dumpers::Field> HeatTransferModel::createNodalFieldReal(
const std::string & field_name, const std::string & group_name,
__attribute__((unused)) bool padding_flag) {
if (field_name == "capacity_lumped") {
AKANTU_EXCEPTION(
"Capacity lumped is a nodal field now stored in the DOF manager."
"Therefore it cannot be used by a dumper anymore");
}
std::map<std::string, Array<Real> *> real_nodal_fields;
real_nodal_fields["temperature"] = temperature.get();
real_nodal_fields["temperature_rate"] = temperature_rate.get();
real_nodal_fields["external_heat_rate"] = external_heat_rate.get();
real_nodal_fields["internal_heat_rate"] = internal_heat_rate.get();
real_nodal_fields["increment"] = increment.get();
std::shared_ptr<dumpers::Field> field =
mesh.createNodalField(real_nodal_fields[field_name], group_name);
return field;
}
/* -------------------------------------------------------------------------- */
std::shared_ptr<dumpers::Field> HeatTransferModel::createElementalField(
const std::string & field_name, const std::string & group_name,
bool /*padding_flag*/, UInt /*spatial_dimension*/,
ElementKind element_kind) {
std::shared_ptr<dumpers::Field> field;
if (field_name == "partitions") {
field = mesh.createElementalField<UInt, dumpers::ElementPartitionField>(
mesh.getConnectivities(), group_name, this->spatial_dimension,
element_kind);
} else if (field_name == "temperature_gradient") {
ElementTypeMap<UInt> nb_data_per_elem =
this->mesh.getNbDataPerElem(temperature_gradient);
field = mesh.createElementalField<Real, dumpers::InternalMaterialField>(
temperature_gradient, group_name, this->spatial_dimension, element_kind,
nb_data_per_elem);
} else if (field_name == "conductivity") {
ElementTypeMap<UInt> nb_data_per_elem =
this->mesh.getNbDataPerElem(conductivity_on_qpoints);
field = mesh.createElementalField<Real, dumpers::InternalMaterialField>(
conductivity_on_qpoints, group_name, this->spatial_dimension,
element_kind, nb_data_per_elem);
}
return field;
}
/* -------------------------------------------------------------------------- */
inline UInt HeatTransferModel::getNbData(const Array<UInt> & indexes,
const SynchronizationTag & tag) const {
AKANTU_DEBUG_IN();
UInt size = 0;
UInt nb_nodes = indexes.size();
switch (tag) {
case SynchronizationTag::_htm_temperature: {
size += nb_nodes * sizeof(Real);
break;
}
default: {
AKANTU_ERROR("Unknown ghost synchronization tag : " << tag);
}
}
AKANTU_DEBUG_OUT();
return size;
}
/* -------------------------------------------------------------------------- */
inline void HeatTransferModel::packData(CommunicationBuffer & buffer,
const Array<UInt> & indexes,
const SynchronizationTag & tag) const {
AKANTU_DEBUG_IN();
for (auto index : indexes) {
switch (tag) {
case SynchronizationTag::_htm_temperature: {
buffer << (*temperature)(index);
break;
}
default: {
AKANTU_ERROR("Unknown ghost synchronization tag : " << tag);
}
}
}
AKANTU_DEBUG_OUT();
}
/* -------------------------------------------------------------------------- */
inline void HeatTransferModel::unpackData(CommunicationBuffer & buffer,
const Array<UInt> & indexes,
const SynchronizationTag & tag) {
AKANTU_DEBUG_IN();
for (auto index : indexes) {
switch (tag) {
case SynchronizationTag::_htm_temperature: {
buffer >> (*temperature)(index);
break;
}
default: {
AKANTU_ERROR("Unknown ghost synchronization tag : " << tag);
}
}
}
AKANTU_DEBUG_OUT();
}
/* -------------------------------------------------------------------------- */
inline UInt HeatTransferModel::getNbData(const Array<Element> & elements,
const SynchronizationTag & tag) const {
AKANTU_DEBUG_IN();
UInt size = 0;
UInt nb_nodes_per_element = 0;
Array<Element>::const_iterator<Element> it = elements.begin();
Array<Element>::const_iterator<Element> end = elements.end();
for (; it != end; ++it) {
const Element & el = *it;
nb_nodes_per_element += Mesh::getNbNodesPerElement(el.type);
}
switch (tag) {
case SynchronizationTag::_htm_temperature: {
size += nb_nodes_per_element * sizeof(Real); // temperature
break;
}
case SynchronizationTag::_htm_gradient_temperature: {
// temperature gradient
size += getNbIntegrationPoints(elements) * spatial_dimension * sizeof(Real);
size += nb_nodes_per_element * sizeof(Real); // nodal temperatures
break;
}
default: {
AKANTU_ERROR("Unknown ghost synchronization tag : " << tag);
}
}
AKANTU_DEBUG_OUT();
return size;
}
/* -------------------------------------------------------------------------- */
inline void HeatTransferModel::packData(CommunicationBuffer & buffer,
const Array<Element> & elements,
const SynchronizationTag & tag) const {
switch (tag) {
case SynchronizationTag::_htm_temperature: {
packNodalDataHelper(*temperature, buffer, elements, mesh);
break;
}
case SynchronizationTag::_htm_gradient_temperature: {
packElementalDataHelper(temperature_gradient, buffer, elements, true,
getFEEngine());
packNodalDataHelper(*temperature, buffer, elements, mesh);
break;
}
default: {
AKANTU_ERROR("Unknown ghost synchronization tag : " << tag);
}
}
}
/* -------------------------------------------------------------------------- */
inline void HeatTransferModel::unpackData(CommunicationBuffer & buffer,
const Array<Element> & elements,
const SynchronizationTag & tag) {
switch (tag) {
case SynchronizationTag::_htm_temperature: {
unpackNodalDataHelper(*temperature, buffer, elements, mesh);
break;
}
case SynchronizationTag::_htm_gradient_temperature: {
unpackElementalDataHelper(temperature_gradient, buffer, elements, true,
getFEEngine());
unpackNodalDataHelper(*temperature, buffer, elements, mesh);
break;
}
default: {
AKANTU_ERROR("Unknown ghost synchronization tag : " << tag);
}
}
}
/* -------------------------------------------------------------------------- */
} // namespace akantu

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