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heat_diffusion.hh
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Thu, Dec 5, 06:45

heat_diffusion.hh

#include "diffusion_law.hh"
#ifndef AKANTU_HEAT_DIFFUSION_HH
#define AKANTU_HEAT_DIFFUSION_HH
namespace akantu {
template <Int dim> class HeatDiffusion : public DiffusionLaw {
using Parent = DiffusionLaw;
public:
HeatDiffusion(DiffusionModel & model, const ID & id,
const ID & fe_engine_id = "");
void updateInternalParameters() override;
void computeDiffusivityGradUOnQuadPoints(ElementType type,
GhostType ghost_type) override;
void computeDiffusivityOnQuadPoints(ElementType type,
GhostType ghost_type) override;
decltype(auto) getArguments(ElementType type, GhostType ghost_type) {
return DiffusionLaw::getArguments<dim>(type, ghost_type);
}
[[nodiscard]] Real getStableTimeStep(Real element_size) override;
[[nodiscard]] Real getRho() const override { return density * capacity; }
[[nodiscard]] Real getEnergy(const ID & energy_id) override;
[[nodiscard]] Real getEnergy(const ID & energy_id,
const Element & element) override;
private:
auto getThermalEnergy(const Element & element) -> Real;
auto getThermalEnergy() -> Real;
template <class iterator, class t_iterator>
void getThermalEnergy(iterator Eth, t_iterator T_it, t_iterator T_end) const;
private:
Real density{0.};
/// capacity
Real capacity{0.};
// conductivity matrix
Matrix<Real> conductivity;
// linear variation of the conductivity (for temperature dependent
// conductivity)
Real conductivity_variation{0.};
// reference temperature for the interpretation of temperature variation
Real T_ref{0.};
};
} // namespace akantu
#endif // AKANTU_HEAT_DIFFUSION_HH

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