Device-side lookup from faces to boundary conditions. More...

#include <boundary.h>

Public Types
enum class	GhostEntropy : uint8_t { INTERIOR , EXTERIOR , TARGET }
	Where the entropy of a characteristic ghost state comes from. More...

Public Member Functions
template<typename T_W , typename T_F , typename T_FT , typename T_CT >
KOKKOS_INLINE_FUNCTION void	exterior_mixture (const uint32_t i_face, const uint8_t i_quad, const uint8_t n_quad, const rtype W_i, const rtype th_i, const rtype n, const T_W &W_cells, const T_F &face_solution, const T_FT &face_thermo, const T_CT &cell_thermo, rtype W_g, rtype *th_g) const
	Exterior state of a gas mixture on boundary face i_face: W as in exterior_W (with the interior gamma for subsonic checks), and the exterior thermodynamic surrogates [gamma, e0]: the image's for transmissive faces, the prescribed state's for UPT, else the interior's.

template<typename T_W , typename T_F >
KOKKOS_INLINE_FUNCTION void	exterior_W (const uint32_t i_face, const uint8_t i_quad, const uint8_t n_quad, const rtype W_i, const rtype n, const T_W &W_cells, const T_F &face_solution, rtype *W_g) const
	Exterior state seen by the Riemann solver on boundary face i_face.

template<typename T_W , typename T_F >
KOKKOS_INLINE_FUNCTION void	transmissive_W (const uint32_t i_face, const uint8_t i_quad, const uint8_t n_quad, const rtype W_i, const rtype n, const T_W &W_cells, const T_F &face_solution, rtype *W_g) const
	Exterior state of exterior_W before the characteristic treatment.

KOKKOS_INLINE_FUNCTION GhostEntropy	characteristic_W (const uint32_t i_face, const rtype W_l, const rtype W_e, const rtype n, const rtype gamma_l, rtype W_g) const
	Characteristic (NSCBC) exterior state of boundary face i_face for the Riemann solver (docs/design/nscbc.md): the outgoing waves of the interior face state W_l, the incoming acoustic wave of the face (from char_state, advanced by the LODI relation each step), and the incoming convective waves of the transmissive state W_e; inlets relax their temperature and tangential velocity toward the target.

KOKKOS_INLINE_FUNCTION void	ghost_W_at (const uint32_t i_face, const rtype W_i, const rtype n, const rtype dist, rtype *W_g) const
	Ghost state for a point a distance dist outside boundary face i_face (the mirror image of an interior point). Under gravity, walls and symmetry planes continue the hydrostatic pressure gradient instead of mirroring the pressure.

KOKKOS_INLINE_FUNCTION void	ghost_W (const uint32_t i_face, const rtype W_i, const rtype n, rtype *W_g) const
	Ghost state for boundary face i_face.

Public Attributes
Kokkos::View< int32_t * >	face_bc

Kokkos::View< int32_t * >	face_image

Kokkos::View< int32_t * >	face_image_face

Kokkos::View< uint8_t * >	face_image_side

Kokkos::View< uint8_t * >	face_image_flip

Kokkos::View< uint8_t ** >	face_image_quad

Kokkos::View< int32_t * >	face_state_index

Kokkos::View< rtype *[N_DIM+2]>	face_state

Kokkos::View< int32_t * >	face_char

Kokkos::View< uint32_t * >	char_faces

Kokkos::View< rtype * >	char_depth

Kokkos::View< rtype *[3]>	char_transverse

Kokkos::View< rtype *[2]>	char_state

Kokkos::View< rtype *[N_DIM]>	char_target

Kokkos::View< rtype *[N_DIM]>	char_target_next

Kokkos::View< uint32_t * >	char_offsets

Kokkos::View< uint32_t * >	char_neighbors

Kokkos::View< rtype *[N_DIM]>	char_neighbor_dx

Kokkos::View< uint8_t * >	char_edge

Kokkos::View< BoundaryCondition * >	bcs

rtype	gamma = 1.4_r

rtype	R = 1.0

bool	viscous = false

Euler	gas

rtype	gravity [N_DIM] = {}

Kokkos::View< rtype **, Kokkos::LayoutRight >	bc_Y

Kokkos::View< rtype *[2]>	bc_thermo

Detailed Description

Device-side lookup from faces to boundary conditions.

Member Enumeration Documentation

◆ GhostEntropy

enum class BoundaryData::GhostEntropy : uint8_t

strong

Where the entropy of a characteristic ghost state comes from.

Enumerator
INTERIOR
EXTERIOR
TARGET

Member Function Documentation

◆ characteristic_W()

KOKKOS_INLINE_FUNCTION GhostEntropy BoundaryData::characteristic_W	(	const uint32_t	i_face,
		const rtype *	W_l,
		const rtype *	W_e,
		const rtype *	n,
		const rtype	gamma_l,
		rtype *	W_g
	)		const

inline

Characteristic (NSCBC) exterior state of boundary face i_face for the Riemann solver (docs/design/nscbc.md): the outgoing waves of the interior face state W_l, the incoming acoustic wave of the face (from char_state, advanced by the LODI relation each step), and the incoming convective waves of the transmissive state W_e; inlets relax their temperature and tangential velocity toward the target.

Parameters

gamma_l Ratio of specific heats of W_l.

Returns: The source of the ghost's entropy (and composition): the interior (outflow), W_e (backflow at outlets) or the target (inflow at inlets).

◆ exterior_mixture()

template<typename T_W , typename T_F , typename T_FT , typename T_CT >

KOKKOS_INLINE_FUNCTION void BoundaryData::exterior_mixture	(	const uint32_t	i_face,
		const uint8_t	i_quad,
		const uint8_t	n_quad,
		const rtype *	W_i,
		const rtype *	th_i,
		const rtype *	n,
		const T_W &	W_cells,
		const T_F &	face_solution,
		const T_FT &	face_thermo,
		const T_CT &	cell_thermo,
		rtype *	W_g,
		rtype *	th_g
	)		const

inline

Exterior state of a gas mixture on boundary face i_face: W as in exterior_W (with the interior gamma for subsonic checks), and the exterior thermodynamic surrogates [gamma, e0]: the image's for transmissive faces, the prescribed state's for UPT, else the interior's.

Parameters

th_i	Interior [gamma, e0].
face_thermo	Face [gamma, e0], indexed (face, quadrature point, side, 0/1).
cell_thermo	Cell [gamma, e0] by cell, as columns (cell, 0/1).

◆ exterior_W()

template<typename T_W , typename T_F >

KOKKOS_INLINE_FUNCTION void BoundaryData::exterior_W	(	const uint32_t	i_face,
		const uint8_t	i_quad,
		const uint8_t	n_quad,
		const rtype *	W_i,
		const rtype *	n,
		const T_W &	W_cells,
		const T_F &	face_solution,
		rtype *	W_g
	)		const

inline

Exterior state seen by the Riemann solver on boundary face i_face.

Transmissive faces take the reconstructed state on their image face: the face of the interior cell found by translating the exterior neighbor inward along the face normal. This matches what interior faces see for a solution that does not vary normal to the boundary, at any reconstruction order. A zero-gradient copy of the face's own interior state instead feeds the boundary cell back to itself at inflow boundaries; on triangles, whose centroids are offset from the face, that creates an O(1) mass imbalance at moving shocks and wrong shock speeds along the boundary.

◆ ghost_W()

KOKKOS_INLINE_FUNCTION void BoundaryData::ghost_W	(	const uint32_t	i_face,
		const rtype *	W_i,
		const rtype *	n,
		rtype *	W_g
	)		const

inline

Ghost state for boundary face i_face.

◆ ghost_W_at()

KOKKOS_INLINE_FUNCTION void BoundaryData::ghost_W_at	(	const uint32_t	i_face,
		const rtype *	W_i,
		const rtype *	n,
		const rtype	dist,
		rtype *	W_g
	)		const

inline

Ghost state for a point a distance dist outside boundary face i_face (the mirror image of an interior point). Under gravity, walls and symmetry planes continue the hydrostatic pressure gradient instead of mirroring the pressure.

◆ transmissive_W()

template<typename T_W , typename T_F >

KOKKOS_INLINE_FUNCTION void BoundaryData::transmissive_W	(	const uint32_t	i_face,
		const uint8_t	i_quad,
		const uint8_t	n_quad,
		const rtype *	W_i,
		const rtype *	n,
		const T_W &	W_cells,
		const T_F &	face_solution,
		rtype *	W_g
	)		const

inline

Exterior state of exterior_W before the characteristic treatment.

Member Data Documentation

◆ bc_thermo

Kokkos::View<rtype *[2]> BoundaryData::bc_thermo

◆ bc_Y

Kokkos::View<rtype **, Kokkos::LayoutRight> BoundaryData::bc_Y

◆ bcs

Kokkos::View<BoundaryCondition *> BoundaryData::bcs

◆ char_depth

Kokkos::View<rtype *> BoundaryData::char_depth

◆ char_edge

Kokkos::View<uint8_t *> BoundaryData::char_edge

◆ char_faces

Kokkos::View<uint32_t *> BoundaryData::char_faces

◆ char_neighbor_dx

Kokkos::View<rtype *[N_DIM]> BoundaryData::char_neighbor_dx

◆ char_neighbors

Kokkos::View<uint32_t *> BoundaryData::char_neighbors

◆ char_offsets

Kokkos::View<uint32_t *> BoundaryData::char_offsets

◆ char_state

Kokkos::View<rtype *[2]> BoundaryData::char_state

◆ char_target

Kokkos::View<rtype *[N_DIM]> BoundaryData::char_target

◆ char_target_next

Kokkos::View<rtype *[N_DIM]> BoundaryData::char_target_next

◆ char_transverse

Kokkos::View<rtype *[3]> BoundaryData::char_transverse

◆ face_bc

Kokkos::View<int32_t *> BoundaryData::face_bc

◆ face_char

Kokkos::View<int32_t *> BoundaryData::face_char

◆ face_image

Kokkos::View<int32_t *> BoundaryData::face_image

◆ face_image_face

Kokkos::View<int32_t *> BoundaryData::face_image_face

◆ face_image_flip

Kokkos::View<uint8_t *> BoundaryData::face_image_flip

◆ face_image_quad

Kokkos::View<uint8_t **> BoundaryData::face_image_quad

◆ face_image_side

Kokkos::View<uint8_t *> BoundaryData::face_image_side

◆ face_state

Kokkos::View<rtype *[N_DIM + 2]> BoundaryData::face_state

◆ face_state_index

Kokkos::View<int32_t *> BoundaryData::face_state_index

◆ gamma

rtype BoundaryData::gamma = 1.4_r

◆ gas

Euler BoundaryData::gas

◆ gravity

rtype BoundaryData::gravity[N_DIM] = {}

◆ R

rtype BoundaryData::R = 1.0

◆ viscous

bool BoundaryData::viscous = false

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

/home/runner/work/mallard/mallard/mallard/src/boundary/boundary.h

Public Types

Public Member Functions

Public Attributes

Detailed Description

Member Enumeration Documentation

◆ GhostEntropy

Member Function Documentation

◆ characteristic_W()

◆ exterior_mixture()

◆ exterior_W()

◆ ghost_W()

◆ ghost_W_at()

◆ transmissive_W()

Member Data Documentation

◆ bc_thermo

◆ bc_Y

◆ bcs

◆ char_depth

◆ char_edge

◆ char_faces

◆ char_neighbor_dx

◆ char_neighbors

◆ char_offsets

◆ char_state

◆ char_target

◆ char_target_next

◆ char_transverse

◆ face_bc

◆ face_char

◆ face_image

◆ face_image_face

◆ face_image_flip

◆ face_image_quad

◆ face_image_side

◆ face_state

◆ face_state_index

◆ gamma

◆ gas

◆ gravity

◆ R

◆ viscous