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heat_transfer_model.hh
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			/**
			* @file heat_transfer_model.hh
			*
			* @author Guillaume Anciaux <guillaume.anciaux@epfl.ch>
			* @author Lucas Frerot <lucas.frerot@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: Mon Mar 15 2021
			*
			* @brief Model of Heat Transfer
			*
			*
			* @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 "data_accessor.hh"
			#include "fe_engine.hh"
			#include "model.hh"
			/* -------------------------------------------------------------------------- */
			#include <array>
			/* -------------------------------------------------------------------------- */

			#ifndef AKANTU_HEAT_TRANSFER_MODEL_HH_
			#define AKANTU_HEAT_TRANSFER_MODEL_HH_

			namespace akantu {
			template <ElementKind kind, class IntegrationOrderFunctor>
			class IntegratorGauss;
			template <ElementKind kind> class ShapeLagrange;
			} // namespace akantu

			namespace akantu {

			class HeatTransferModel : public Model,
			public DataAccessor<Element>,
			public DataAccessor<Idx> {
			/* ------------------------------------------------------------------------ */
			/* Constructors/Destructors */
			/* ------------------------------------------------------------------------ */
			public:
			using FEEngineType = FEEngineTemplate<IntegratorGauss, ShapeLagrange>;

			HeatTransferModel(Mesh & mesh, Int spatial_dimension = _all_dimensions,
			const ID & id = "heat_transfer_model",
			std::shared_ptr<DOFManager> dof_manager = nullptr);

			~HeatTransferModel() override;

			/* ------------------------------------------------------------------------ */
			/* Methods */
			/* ------------------------------------------------------------------------ */
			protected:
			/// generic function to initialize everything ready for explicit dynamics
			void initFullImpl(const ModelOptions & options) override;

			/// read one material file to instantiate all the materials
			void readMaterials();

			/// allocate all vectors
			void initSolver(TimeStepSolverType time_step_solver_type,
			NonLinearSolverType non_linear_solver_type) override;

			/// initialize the model
			void initModel() override;

			void predictor() override;

			/// compute the heat flux
			void assembleResidual() override;

			/// get the type of matrix needed
			MatrixType getMatrixType(const ID & matrix_id) override;

			/// callback to assemble a Matrix
			void assembleMatrix(const ID & matrix_id) override;

			/// callback to assemble a lumped Matrix
			void assembleLumpedMatrix(const ID & matrix_id) override;

			std::tuple<ID, TimeStepSolverType>
			getDefaultSolverID(const AnalysisMethod & method) override;

			ModelSolverOptions
			getDefaultSolverOptions(const TimeStepSolverType & type) const override;
			/* ------------------------------------------------------------------------ */
			/* Methods for explicit */
			/* ------------------------------------------------------------------------ */
			public:
			/// compute and get the stable time step
			Real getStableTimeStep();

			/// set the stable timestep
			void setTimeStep(Real time_step, const ID & solver_id = "") override;

			// temporary protection to prevent bad usage: should check for bug
			protected:
			/// compute the internal heat flux \todo Need code review: currently not
			/// public method
			void assembleInternalHeatRate();

			public:
			/// calculate the lumped capacity vector for heat transfer problem
			void assembleCapacityLumped();

			public:
			/// assemble the conductivity matrix
			void assembleConductivityMatrix();

			/// assemble the conductivity matrix
			void assembleCapacity();

			/// compute the capacity on quadrature points
			void computeRho(Array<Real> & rho, ElementType type, GhostType ghost_type);

			private:
			/// calculate the lumped capacity vector for heat transfer problem (w
			/// ghost type)
			void assembleCapacityLumped(GhostType ghost_type);

			/// compute the conductivity tensor for each quadrature point in an array
			void computeConductivityOnQuadPoints(GhostType ghost_type);

			/// compute vector \f[k \grad T\f] for each quadrature point
			void computeKgradT(GhostType ghost_type);

			/// compute the thermal energy
			Real computeThermalEnergyByNode();

			/* ------------------------------------------------------------------------ */
			/* Data Accessor inherited members */
			/* ------------------------------------------------------------------------ */
			public:
			inline Int getNbData(const Array<Element> & elements,
			const SynchronizationTag & tag) const override;
			inline void packData(CommunicationBuffer & buffer,
			const Array<Element> & elements,
			const SynchronizationTag & tag) const override;
			inline void unpackData(CommunicationBuffer & buffer,
			const Array<Element> & elements,
			const SynchronizationTag & tag) override;

			inline Int getNbData(const Array<Idx> & indexes,
			const SynchronizationTag & tag) const override;
			inline void packData(CommunicationBuffer & buffer, const Array<Idx> & indexes,
			const SynchronizationTag & tag) const override;
			inline void unpackData(CommunicationBuffer & buffer,
			const Array<Idx> & indexes,
			const SynchronizationTag & tag) override;

			/* ------------------------------------------------------------------------ */
			/* Dumpable interface */
			/* ------------------------------------------------------------------------ */
			public:
			std::shared_ptr<dumpers::Field>
			createNodalFieldReal(const std::string & field_name,
			const std::string & group_name,
			bool padding_flag) override;

			std::shared_ptr<dumpers::Field>
			createNodalFieldBool(const std::string & field_name,
			const std::string & group_name,
			bool padding_flag) override;

			std::shared_ptr<dumpers::Field>
			createElementalField(const std::string & field_name,
			const std::string & group_name, bool padding_flag,
			Int spatial_dimension, ElementKind kind) override;

			/* ------------------------------------------------------------------------ */
			/* Accessors */
			/* ------------------------------------------------------------------------ */
			public:
			AKANTU_GET_MACRO_AUTO(Density, density);
			AKANTU_GET_MACRO_AUTO(Capacity, capacity);
			/// get the dimension of the system space
			AKANTU_GET_MACRO_AUTO(SpatialDimension, spatial_dimension);
			/// get the current value of the time step
			AKANTU_GET_MACRO_AUTO(TimeStep, time_step);
			/// get the assembled heat flux
			AKANTU_GET_MACRO_DEREF_PTR(InternalHeatRate, internal_heat_rate);
			/// get the boundary vector
			AKANTU_GET_MACRO_DEREF_PTR_NOT_CONST(BlockedDOFs, blocked_dofs);
			/// get the external heat rate vector
			AKANTU_GET_MACRO_DEREF_PTR_NOT_CONST(ExternalHeatRate, external_heat_rate);
			/// get the temperature gradient
			AKANTU_GET_MACRO_BY_ELEMENT_TYPE_CONST(TemperatureGradient,
			temperature_gradient, Real);
			/// get the conductivity on q points
			AKANTU_GET_MACRO_BY_ELEMENT_TYPE_CONST(ConductivityOnQpoints,
			conductivity_on_qpoints, Real);
			/// get the conductivity on q points
			AKANTU_GET_MACRO_BY_ELEMENT_TYPE_CONST(TemperatureOnQpoints,
			temperature_on_qpoints, Real);
			/// internal variables
			AKANTU_GET_MACRO_BY_ELEMENT_TYPE_CONST(KgradT, k_gradt_on_qpoints, Real);
			/// get the temperature
			AKANTU_GET_MACRO_DEREF_PTR_NOT_CONST(Temperature, temperature);
			/// get the temperature derivative
			AKANTU_GET_MACRO_DEREF_PTR(TemperatureRate, temperature_rate);

			/// get the energy denominated by thermal
			Real getEnergy(const std::string & energy_id, ElementType type,
			Idx index);
			/// get the energy denominated by thermal
			Real getEnergy(const std::string & energy_id);

			/// get the thermal energy for a given element
			Real getThermalEnergy(ElementType type, Idx index);
			/// get the thermal energy for a given element
			Real getThermalEnergy();

			protected:
			/* ------------------------------------------------------------------------ */
			FEEngine & getFEEngineBoundary(const ID & name = "") override;

			/* ----------------------------------------------------------------------- */
			template <class iterator, class const_iterator>
			void getThermalEnergy(iterator Eth, const_iterator T_it,
			const_iterator T_end) const;

			/* ------------------------------------------------------------------------ */
			/* Class Members */
			/* ------------------------------------------------------------------------ */
			private:
			/// time step
			Real time_step;

			/// temperatures array
			std::unique_ptr<Array<Real>> temperature;

			/// temperatures derivatives array
			std::unique_ptr<Array<Real>> temperature_rate;

			/// increment array (@f$\delta \dot T@f$ or @f$\delta T@f$)
			std::unique_ptr<Array<Real>> increment;

			/// the density
			Real density;

			/// the speed of the changing temperature
			ElementTypeMapArray<Real> temperature_gradient;

			/// temperature field on quadrature points
			ElementTypeMapArray<Real> temperature_on_qpoints;

			/// conductivity tensor on quadrature points
			ElementTypeMapArray<Real> conductivity_on_qpoints;

			/// vector \f[k \grad T\f] on quad points
			ElementTypeMapArray<Real> k_gradt_on_qpoints;

			/// external flux vector
			std::unique_ptr<Array<Real>> external_heat_rate;

			/// residuals array
			std::unique_ptr<Array<Real>> internal_heat_rate;

			/// boundary vector
			std::unique_ptr<Array<bool>> blocked_dofs;

			// realtime
			// Real time;

			/// capacity
			Real capacity;

			// conductivity matrix
			Matrix<Real> conductivity;

			// linear variation of the conductivity (for temperature dependent
			// conductivity)
			Real conductivity_variation;

			// reference temperature for the interpretation of temperature variation
			Real T_ref;

			// the biggest parameter of conductivity matrix
			// Real conductivitymax;

			bool need_to_reassemble_capacity{true};
			bool need_to_reassemble_capacity_lumped{true};
			Int temperature_release{0};
			Int conductivity_matrix_release{-1};
			std::unordered_map<GhostType, bool> initial_conductivity{{_not_ghost, true},
			{_ghost, true}};
			std::unordered_map<GhostType, Int> conductivity_release{{_not_ghost, 0},
			{_ghost, 0}};
			};

			} // namespace akantu

			/* -------------------------------------------------------------------------- */
			/* inline functions */
			/* -------------------------------------------------------------------------- */
			#include "heat_transfer_model_inline_impl.hh"

			#endif /* AKANTU_HEAT_TRANSFER_MODEL_HH_ */

rAKA/src/model/heat_transfer/heat_transfer_model.hh01141098e462features/node_to_node

heat_transfer_model.hhView Options

rAKA/src/model/heat_transfer/heat_transfer_model.hh
01141098e462features/node_to_node

heat_transfer_model.hh
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