hexed::Freestream Class Reference

Sets the ghost state to the provided freestream state. More...

#include <Boundary_condition.hpp>

Inheritance diagram for hexed::Freestream:

Public Member Functions
	Freestream (Mat<> freestream_state)
	freestream_state.size() must equal the n_var() of the Boundary_connection you apply_state it to
void	apply_state (Boundary_connection &) override
	applies boundary condition to state variables (Dirichlet BCs)
void	apply_flux (Boundary_connection &) override
	applies boundary condition to viscous fluxes (if applicable)
bool	smooth () const override
	Returns false if this BC tends to cause the flow not to be smooth.
Public Member Functions inherited from hexed::Flow_bc
virtual void	apply_advection (Boundary_connection &)
	applies boundary condition to linear advection equation used to compute nonsmoothness indicator
virtual void	apply_diffusion (Boundary_connection &)
virtual void	flux_diffusion (Boundary_connection &)
virtual void	init_cache (Boundary_connection &)
virtual int	n_prescribed (int n_dim) const
virtual void	set_prescribed (Interpreter &, Boundary_connection &)

Detailed Description

Sets the ghost state to the provided freestream state.

Technically this can result in an ill-posed problem if used in anything other than a supersonic inlet, but in numerical practice it often gets you the right answer anyway, at least for inviscid problems.

Member Function Documentation

apply_flux()

void hexed::Freestream::apply_flux ( Boundary_connection & )

overridevirtual

applies boundary condition to viscous fluxes (if applicable)

Implements hexed::Flow_bc.

apply_state()

void hexed::Freestream::apply_state ( Boundary_connection & )

overridevirtual

applies boundary condition to state variables (Dirichlet BCs)

writes to the first n_var()*size() entries of ghost_state() (called on the provided Boundary_face.)

Implements hexed::Flow_bc.

smooth()

bool hexed::Freestream::smooth ( ) const

inlineoverridevirtual

Returns false if this BC tends to cause the flow not to be smooth.

Farfield BCs should be expected to cause non-smoothness, especially if they are over-constrained, whereas wall boundary conditions should not. When performing AMR, cells on non-smooth boundaries will receive special treatment to avoid excessive refinement. So, when in doubt, have new boundary conditions return true so that they can be refined.

Implements hexed::Flow_bc.

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

• /home/micaiah/Desktop/hexed/include/Boundary_condition.hpp
• /home/micaiah/Desktop/hexed/libhexed/Boundary_condition.cpp