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fluid_diffusion_model.hh
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			/**
			* @file fluid_diffusion_model.hh
			*
			* @author Emil Gallyamov <emil.gallyamov@epfl.ch>
			*
			* @date creation: Aug 2019
			*
			* @brief Transient fluid diffusion model based on the Heat Transfer Model
			*
			* @section LICENSE
			*
			* Copyright (©) 2010-2018 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 "boundary_condition.hh"
			#include "data_accessor.hh"
			#include "fe_engine.hh"
			#include "fluid_diffusion_model_event_handler.hh"
			#include "model.hh"
			#if defined(AKANTU_COHESIVE_ELEMENT)
			#include "material_cohesive.hh"
			#include "solid_mechanics_model_cohesive.hh"
			#endif

			/* -------------------------------------------------------------------------- */
			#include <array>
			/* -------------------------------------------------------------------------- */

			#ifndef __AKANTU_FLUID_DIFFUSION_MODEL_HH__
			#define __AKANTU_FLUID_DIFFUSION_MODEL_HH__

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

			namespace akantu {

			class FluidDiffusionModel
			: public Model,
			public BoundaryCondition<FluidDiffusionModel>,
			public DataAccessor<Element>,
			public DataAccessor<UInt>,
			public EventHandlerManager<FluidDiffusionModelEventHandler> {
			/* ------------------------------------------------------------------------ */
			/* Constructors/Destructors */
			/* ------------------------------------------------------------------------ */
			public:
			using FEEngineType = FEEngineTemplate<IntegratorGauss, ShapeLagrange>;

			FluidDiffusionModel(Mesh & mesh, UInt dim = _all_dimensions,
			const ID & id = "fluid_diffusion_model");

			~FluidDiffusionModel() 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, NonLinearSolverType) override;

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

			void predictor() override;

			/// callback for the solver, this is called at end of solve
			void afterSolveStep(bool is_converged = false) override;

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

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

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

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

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

			ModelSolverOptions
			getDefaultSolverOptions(const TimeStepSolverType & type) const override;

			/// resize all fields on nodes added event
			void resizeFields();

			public:
			/// get coordinates of qpoints in same order as other elemental fields
			Array<Real> getQpointsCoord();

			#ifdef AKANTU_COHESIVE_ELEMENT
			/// get apperture at nodes from displacement field of cohesive model
			void getApertureOnQpointsFromCohesive(
			const SolidMechanicsModelCohesive & coh_model, bool first_time = false);

			/// insert fluid elements based on cohesive elements and their damage
			void updateFluidElementsFromCohesive(
			const SolidMechanicsModelCohesive & coh_model);
			#endif

			void applyExternalFluxAtElementGroup(const Real & rate,
			const ElementGroup & source_facets,
			GhostType ghost_type = _not_ghost);

			void injectIntoFacetsByCoord(const Vector<Real> & position,
			const Real & injection_rate);
			/* ------------------------------------------------------------------------ */
			/* Methods for explicit */
			/* ------------------------------------------------------------------------ */
			public:
			/// compute and get the stable time step
			Real getStableTimeStep();

			/// set the stable timestep
			void setTimeStep(Real dt, 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 assembleInternalFlux();

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

			/* ------------------------------------------------------------------------ */
			/* Mesh Event Handler inherited members */
			/* ------------------------------------------------------------------------ */
			protected:
			void onElementsAdded(const Array<Element> & element_list,
			const NewElementsEvent & /event/) override;
			/* ------------------------------------------------------------------------ */
			/* Methods for static */
			/* ------------------------------------------------------------------------ */
			public:
			/// assemble the conductivity matrix
			void assemblePermeabilityMatrix();

			/// 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(const GhostType & ghost_type);

			/// assemble the conductivity matrix (w/ ghost type)
			void assemblePermeabilityMatrix(const GhostType & ghost_type);

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

			/// compute vector k \grad T for each quadrature point
			void computeKgradP(const GhostType & ghost_type);

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

			/* ------------------------------------------------------------------------ */
			/* Data Accessor inherited members */
			/* ------------------------------------------------------------------------ */
			public:
			inline UInt 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 UInt getNbData(const Array<UInt> & indexes,
			const SynchronizationTag & tag) const override;
			inline void packData(CommunicationBuffer & buffer,
			const Array<UInt> & indexes,
			const SynchronizationTag & tag) const override;
			inline void unpackData(CommunicationBuffer & buffer,
			const Array<UInt> & 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,
			UInt spatial_dimension, ElementKind kind) override;

			virtual void dump(const std::string & dumper_name);
			virtual void dump(const std::string & dumper_name, UInt step);
			virtual void dump(const std::string & dumper_name, Real time, UInt step);

			void dump() override;

			virtual void dump(UInt step);

			virtual void dump(Real time, UInt step);

			/* ------------------------------------------------------------------------ */
			/* Accessors */
			/* ------------------------------------------------------------------------ */
			public:
			AKANTU_GET_MACRO(Compressibility, compressibility, Real);
			AKANTU_GET_MACRO(Pushability, pushability, Real);
			/// get the dimension of the system space
			AKANTU_GET_MACRO(SpatialDimension, spatial_dimension, UInt);
			/// get the current value of the time step
			AKANTU_GET_MACRO(TimeStep, time_step, Real);
			/// get the assembled heat flux
			AKANTU_GET_MACRO(InternalFlux, *internal_flux, Array<Real> &);
			/// get the boundary vector
			AKANTU_GET_MACRO(BlockedDOFs, *blocked_dofs, Array<bool> &);
			/// get the external heat rate vector
			AKANTU_GET_MACRO(ExternalFlux, *external_flux, Array<Real> &);
			/// get the temperature gradient
			AKANTU_GET_MACRO_BY_ELEMENT_TYPE_CONST(PressureGradient, pressure_gradient,
			Real);
			/// get the permeability on q points
			AKANTU_GET_MACRO_BY_ELEMENT_TYPE_CONST(PermeabilityOnQpoints,
			permeability_on_qpoints, Real);
			/// get the pressure on q points
			AKANTU_GET_MACRO_BY_ELEMENT_TYPE_CONST(PressureOnQpoints, pressure_on_qpoints,
			Real);
			/// get the pressure change on q points
			AKANTU_GET_MACRO_BY_ELEMENT_TYPE_CONST(DeltaPressureOnQpoints,
			delta_pres_on_qpoints, Real);
			/// get the aperture on q points
			AKANTU_GET_MACRO_BY_ELEMENT_TYPE_CONST(ApertureOnQpoints, aperture_on_qpoints,
			Real);
			/// get the aperture on q points
			AKANTU_GET_MACRO_BY_ELEMENT_TYPE(ApertureOnQpoints, aperture_on_qpoints,
			Real);
			/// internal variables
			AKANTU_GET_MACRO_BY_ELEMENT_TYPE_CONST(KgradP, k_gradp_on_qpoints, Real);
			/// get the temperature
			AKANTU_GET_MACRO(Pressure, *pressure, Array<Real> &);
			/// get the temperature derivative
			AKANTU_GET_MACRO(PressureRate, *pressure_rate, Array<Real> &);

			inline bool isModelVelocityDependent() const { return use_aperture_speed; }

			FEEngine & getFEEngineBoundary(const ID & name = "") override;
			// /// get the energy denominated by thermal
			// Real getEnergy(const std::string & energy_id, const ElementType & type,
			// UInt index);
			// /// get the energy denominated by thermal
			// Real getEnergy(const std::string & energy_id);

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

			protected:
			/* ------------------------------------------------------------------------ */
			/* Class Members */
			/* ------------------------------------------------------------------------ */
			private:
			/// number of iterations
			UInt n_iter;

			/// time step
			Real time_step;

			/// pressure array
			std::unique_ptr<Array<Real>> pressure;

			/// pressure derivatives array
			std::unique_ptr<Array<Real>> pressure_rate;

			// /// increment array (@f$\delta \dot P@f$ or @f$\delta P@f$)
			// Array<Real> * increment{nullptr};

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

			/// pressure field on quadrature points
			ElementTypeMapArray<Real> pressure_on_qpoints;

			/// pressure change on quadrature points
			ElementTypeMapArray<Real> delta_pres_on_qpoints;

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

			/// aperture on quadrature points
			ElementTypeMapArray<Real> aperture_on_qpoints;

			/// aperture on quadrature points
			ElementTypeMapArray<Real> prev_aperture_on_qpoints;

			/// vector k \grad T on quad points
			ElementTypeMapArray<Real> k_gradp_on_qpoints;

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

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

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

			// viscosity
			Real viscosity{0.};

			/// compressibility Cf = 1/pho drho/dP
			Real compressibility{0.};

			// default value of aperture on a newly added nodesynchronizer
			Real default_aperture{0.};

			bool need_to_reassemble_capacity{true};
			bool need_to_reassemble_capacity_lumped{true};
			UInt pressure_release{0};
			UInt solution_release{0};
			UInt permeability_matrix_release{0};

			std::unordered_map<GhostType, bool> initial_permeability{{_not_ghost, true},
			{_ghost, true}};
			std::unordered_map<GhostType, UInt> permeability_release{{_not_ghost, 0},
			{_ghost, 0}};
			bool use_aperture_speed{false};

			// pushability Ch = 1/h dh/dP
			Real pushability{0.};

			// damage at which cohesive element will be duplicated in fluid mesh
			Real insertion_damage{0.};
			};

			} // namespace akantu

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

			#endif /* __AKANTU_FLUID_DIFFUSION_MODEL_HH__ */

rAKA/src/model/fluid_diffusion/fluid_diffusion_model.hh1d4a14f57340features/heat_transfer_…

fluid_diffusion_model.hhView Options

rAKA/src/model/fluid_diffusion/fluid_diffusion_model.hh
1d4a14f57340features/heat_transfer_…

fluid_diffusion_model.hh
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