sets pressure on outflow boundaries More...

#include <Boundary_condition.hpp>

Inheritance diagram for hexed::Pressure_outflow:

Public Member Functions
	Pressure_outflow (double pressure)

void	apply_state (Boundary_face &) override
	applies boundary condition to state variables (Dirichlet BCs)

void	apply_flux (Boundary_face &) override

Public Member Functions inherited from hexed::Flow_bc
virtual void	apply_advection (Boundary_face &)
	applies boundary condition to linear advection equation used to compute nonsmoothness indicator

virtual void	apply_diffusion (Boundary_face &)

virtual void	flux_diffusion (Boundary_face &)

virtual void	init_cache (Boundary_face &)
	initialize `Boundary_face::state_cache` at beginning of simulation (used by `Cache_bc`)

Detailed Description

sets pressure on outflow boundaries

For supersonic outflow, same as Riemann_invariants
For subsonic outflow, sets the pressure instead of the incoming characteristic.
Not valid for inflow. In principle, this could be less destructive than Riemann invariants for some wakes or boundary layers.
Attention
Sets all the viscous fluxes to zero regarding of Mach number, which makes it technically ill-posed. Not sure if that matters in practice.

Member Function Documentation

void hexed::Pressure_outflow::apply_flux ( Boundary_face & bf )

overridevirtual

void hexed::Pressure_outflow::apply_state ( Boundary_face & )

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.)

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