MeltPoolDG::SpeciesTransport Namespace Reference

Classes
struct	DerivedPartialValueMixin
struct	DofValueMixin
struct	EffectiveMaterialMixin
struct	FluxMixin
struct	GradientValueMixin
class	MassFractionPostProcessor
class	PartialDensityPostProcessor

Enumerations
enum class	BoundaryConditionType { dirichlet , neumann }

Functions
template<std::size_t n_partial_densities, typename VectorizedArrayType , typename ReadOnlyDofView , typename WritableDofView >
void	set_boundary_value_and_gradient (const WritableDofView &w_p, const ReadOnlyDofView &w_m, const BoundaryConditionType boundary_type, const std::array< VectorizedArrayType, n_partial_densities > &dirichlet_boundary_values={})
template<int n_species, typename ConservedVariablesView , typename WritableFluxView >
DEAL_II_ALWAYS_INLINE void	compute_convective_flux (const ConservedVariablesView &conserved_variables, const WritableFluxView &flux)
	Computes the convective species transport flux for each species.
template<int n_species, typename ConservedVariablesView >
DEAL_II_ALWAYS_INLINE auto	fickian_diffusion_approximation (const ConservedVariablesView &conserved_variables, const unsigned int species_idx)
template<int n_species, typename ConservedVariablesView , typename WritableFluxView >
DEAL_II_ALWAYS_INLINE void	compute_diffusive_flux (const ConservedVariablesView &conserved_variables, const WritableFluxView &flux)
template<int n_species, typename VectorizedArrayType , typename ConservedVariablesView , typename WritableFluxView >
void	interdiffusional_enthalpy_flux (const ConservedVariablesView &conserved_variables, const WritableFluxView &flux)

Enumeration Type Documentation

BoundaryConditionType

enum class MeltPoolDG::SpeciesTransport::BoundaryConditionType

strong

Enum class for specifying the type of boundary condition for partial densities in species transport.

Enumerator
dirichlet
neumann

Function Documentation

compute_convective_flux()

template<int n_species, typename ConservedVariablesView , typename WritableFluxView >

DEAL_II_ALWAYS_INLINE void MeltPoolDG::SpeciesTransport::compute_convective_flux ( const ConservedVariablesView &  conserved_variables, const WritableFluxView &  flux  )

inline

Computes the convective species transport flux for each species.

Updates the species partial density flux based on the conserved variables and their velocity. Only iterates over n_species-1 since the last species is assumed to be not present in the solution vector but computed from the mass fractions summing to one.

Parameters

conserved_variables	The conserved variables of the system.
flux	The flux object to be updated.

compute_diffusive_flux()

template<int n_species, typename ConservedVariablesView , typename WritableFluxView >

DEAL_II_ALWAYS_INLINE void MeltPoolDG::SpeciesTransport::compute_diffusive_flux ( const ConservedVariablesView &  conserved_variables, const WritableFluxView &  flux  )

inline

Computes the diffusive species transport flux for each species based on the Fickian diffusion approximation. Only iterates over n_species-1 since the last species is assumed to be not present in the solution vector but computed from the mass fractions summing to one.

Parameters

conserved_variables	The conserved variables of the system including their gradients.
flux	The flux object to be updated.

fickian_diffusion_approximation()

template<int n_species, typename ConservedVariablesView >

DEAL_II_ALWAYS_INLINE auto MeltPoolDG::SpeciesTransport::fickian_diffusion_approximation ( const ConservedVariablesView &  conserved_variables, const unsigned int  species_idx  )

inline

Computes an approximation of the Fickian diffusion flux for a single species as presented in

Cook et al., "Enthalpy diffusion in multicomponent flows", Physics of Fluids 21, 055109(2009)

Parameters

conserved_variables	The conserved variables of the system including their gradients.
species_idx	Index of the species for which to compute the flux.

Returns

The approximate Fickian diffusion flux for the given species.

interdiffusional_enthalpy_flux()

template<int n_species, typename VectorizedArrayType , typename ConservedVariablesView , typename WritableFluxView >

void MeltPoolDG::SpeciesTransport::interdiffusional_enthalpy_flux	(	const ConservedVariablesView &	conserved_variables,
		const WritableFluxView &	flux
	)

Computes the interdiffusional enthalpy flux based on the Fickian diffusion approximation for each species. The mathematical formulation of the interdiffusional enthalpy flux is given in

Cook et al., "Enthalpy diffusion in multicomponent flows", Physics of Fluids 21, 055109(2009)

Parameters

conserved_variables	The conserved variables of the system including their gradients.
flux	The flux object to be updated with the interdiffusional enthalpy flux contribution to the energy flux.

set_boundary_value_and_gradient()

template<std::size_t n_partial_densities, typename VectorizedArrayType , typename ReadOnlyDofView , typename WritableDofView >

void MeltPoolDG::SpeciesTransport::set_boundary_value_and_gradient	(	const WritableDofView &	w_p,
		const ReadOnlyDofView &	w_m,
		const BoundaryConditionType	boundary_type,
		const std::array< VectorizedArrayType, n_partial_densities > &	dirichlet_boundary_values = {}
	)

Sets the boundary value and gradient for partial densities in species transport. The boundary condition is only applied to all partial densities and their gradients.

Parameters

w_p	The writable degree of freedom view for the values on the outer face.
w_m	The read-only degree of freedom view for the values on the inner face.
boundary_type	The type of boundary condition to apply.
dirichlet_boundary_values	The prescribed partial densities for Dirichlet boundary conditions (optional, only used if boundary_type is dirichlet).