MeltPoolDG::CompressibleFlow::InputDefinedBoundaryCondition< dim, number > Struct Template Reference

#include <case_utils.hpp>

Collaboration diagram for MeltPoolDG::CompressibleFlow::InputDefinedBoundaryCondition< dim, number >:

Classes
struct	RampUpParameters

Public Member Functions
std::shared_ptr< dealii::Function< dim > >	create_boundary_function (const number start_time, const int n_species=1) const
void	add_user_boundary_condition_parameters (dealii::ParameterHandler &prm, const std::string &boundary_location)

Public Attributes
BoundaryConditionType	type = BoundaryConditionType::slip_wall
	Type of the boundary condition (default: slip wall)
std::string	density
	Prescribed density at the boundary (used if required by the boundary condition type)
std::string	velocity
	Prescribed velocity vector at the boundary (used if required by the boundary condition type)
std::string	pressure
	Prescribed pressure at the boundary (used if required by the boundary condition type)
std::string	energy
std::string	species_mass_fractions
RampUpParameters	inflow_velocity_ramp_up
	Velocity ramp-up parameters, only relevant for inflow boundaries.
InputDefinedFreeJetInflow< dim, number >	free_jet_inflow

Detailed Description

template<int dim, typename number>
struct MeltPoolDG::CompressibleFlow::InputDefinedBoundaryCondition< dim, number >

Struct for storing boundary condition information for a specific boundary and creating a corresponding function object for use in simulations. This can be used to provide cases where via the input file the user can specify the type and values of the boundary conditions at the different boundaries of the domain.

Member Function Documentation

add_user_boundary_condition_parameters()

template<int dim, typename number >

void MeltPoolDG::CompressibleFlow::InputDefinedBoundaryCondition< dim, number >::add_user_boundary_condition_parameters	(	dealii::ParameterHandler &	prm,
		const std::string &	boundary_location
	)

This function reads boundary condition data for a single boundary from the user input file. To do this, one provides the name of the subsection in the input file that describes the boundary condition. The data is stored in the corresponding fields of this struct.

Parameters

prm	Parameter handler used to read the input file.
boundary_location	Name of the subsection containing the boundary data.

create_boundary_function()

template<int dim, typename number >

std::shared_ptr< dealii::Function< dim > > MeltPoolDG::CompressibleFlow::InputDefinedBoundaryCondition< dim, number >::create_boundary_function	(	const number	start_time,
		const int	n_species = 1
	)		const

Creates a function object representing the boundary condition based on the data stored in this struct. For example, for a fixed-pressure outflow, this returns a dealii::Function representing the pressure field at the boundary.

Parameters

start_time

Initial time used to initialize the function.

Returns

Shared pointer to a dealii::Function representing the boundary condition.

Member Data Documentation

density

template<int dim, typename number >

std::string MeltPoolDG::CompressibleFlow::InputDefinedBoundaryCondition< dim, number >::density

Prescribed density at the boundary (used if required by the boundary condition type)

energy

template<int dim, typename number >

std::string MeltPoolDG::CompressibleFlow::InputDefinedBoundaryCondition< dim, number >::energy

Prescribed specific inner energy at the boundary (used if required by the boundary condition type). For a subsonic outflow with fixed energy, this corresponds to the Dirichlet value for the conservative variable ρ*E, not just the specific inner energy.

free_jet_inflow

template<int dim, typename number >

InputDefinedFreeJetInflow<dim, number> MeltPoolDG::CompressibleFlow::InputDefinedBoundaryCondition< dim, number >::free_jet_inflow

Free jet inflow parameters, only relevant if the boundary condition type is set to a free jet inflow via the enum combined_inflow_no_slip_wall.

inflow_velocity_ramp_up

template<int dim, typename number >

RampUpParameters MeltPoolDG::CompressibleFlow::InputDefinedBoundaryCondition< dim, number >::inflow_velocity_ramp_up

Velocity ramp-up parameters, only relevant for inflow boundaries.

pressure

template<int dim, typename number >

std::string MeltPoolDG::CompressibleFlow::InputDefinedBoundaryCondition< dim, number >::pressure

Prescribed pressure at the boundary (used if required by the boundary condition type)

species_mass_fractions

template<int dim, typename number >

std::string MeltPoolDG::CompressibleFlow::InputDefinedBoundaryCondition< dim, number >::species_mass_fractions

Prescribed mass fractions of species at the boundary (only used for multi-component flow cases and ignored for single-species flow cases). The mass fractions should be provided as a semicolon-separated list of functions. The number of prescribed species mass fractions should be one less than the total number of species in the simulation, since the mass fraction of the last species can be computed from the fact that the mass fractions sum up to one.

type

template<int dim, typename number >

BoundaryConditionType MeltPoolDG::CompressibleFlow::InputDefinedBoundaryCondition< dim, number >::type = BoundaryConditionType::slip_wall

Type of the boundary condition (default: slip wall)

velocity

template<int dim, typename number >

std::string MeltPoolDG::CompressibleFlow::InputDefinedBoundaryCondition< dim, number >::velocity

Prescribed velocity vector at the boundary (used if required by the boundary condition type)

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The documentation for this struct was generated from the following files:

• include/meltpooldg/compressible_flow/case_utils.hpp
• source/compressible_flow/case_utils.cpp