hexed::Flow_bc Class Reference

Abstract class representing an arbitrary flow boundary condition. More...

#include <Boundary_condition.hpp>

Inheritance diagram for hexed::Flow_bc:

Public Member Functions
virtual void	apply_state (Boundary_connection &)=0
	applies boundary condition to state variables (Dirichlet BCs)
virtual void	apply_flux (Boundary_connection &)=0
	applies boundary condition to viscous fluxes (if applicable)
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 &)
virtual bool	smooth () const =0
	Returns false if this BC tends to cause the flow not to be smooth.

Detailed Description

Abstract class representing an arbitrary flow boundary condition.

That is, something that computes a ghost state given an state on the boundary (inside state), a face size, and a Jacobian.

Member Function Documentation

apply_advection()

void hexed::Flow_bc::apply_advection ( Boundary_connection & con )

virtual

applies boundary condition to linear advection equation used to compute nonsmoothness indicator

Reimplemented in hexed::Copy, hexed::No_slip, and hexed::Nonpenetration.

apply_flux()

virtual void hexed::Flow_bc::apply_flux ( Boundary_connection & )

pure virtual

applies boundary condition to viscous fluxes (if applicable)

Implemented in hexed::Copy, hexed::Expression_bc, hexed::Freestream, hexed::No_slip, hexed::Nonpenetration, hexed::Outflow, hexed::Pressure_outflow, and hexed::Riemann_invariants.

apply_state()

virtual void hexed::Flow_bc::apply_state ( Boundary_connection & )

pure virtual

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.)

Implemented in hexed::Copy, hexed::Expression_bc, hexed::Freestream, hexed::No_slip, hexed::Nonpenetration, hexed::Outflow, hexed::Pressure_outflow, and hexed::Riemann_invariants.

smooth()

virtual bool hexed::Flow_bc::smooth ( ) const

pure virtual

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.

Implemented in hexed::Copy, hexed::Expression_bc, hexed::Freestream, hexed::No_slip, hexed::Nonpenetration, hexed::Outflow, hexed::Pressure_outflow, and hexed::Riemann_invariants.

---

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