NaturalRiemannBC

class NaturalRiemannBC : public godzilla::BoundaryCondition

Base class for natural Riemann boundary conditions.

Public Functions

virtual void create() override

Called to construct the object.

virtual void set_up() override

Set up this boundary condition.

Int get_field_id() const

Get the ID of the field this boundary condition operates on.

Returns:

ID of the field

virtual const std::vector<Int> &get_components() const = 0

Get the component numbers this boundary condition is constraining.

Returns:

Vector of component numbers

virtual void evaluate(Real time, const Real *c, const Real *n, const Scalar *xI, Scalar *xG) = 0

Evaluate the boundary condition.

Parameters:

• time – The time at which to sample

• c – Centroid

• n – Normal vector

• xI – State at the interior cell

• xG – State at the ghost cell (computed)