AMP::Operator::Subchannel Namespace Reference

Functions
std::shared_ptr< const SubchannelOperatorParameters >	convert (std::shared_ptr< const OperatorParameters >)
AMP::LinearAlgebra::Vector::shared_ptr	getCladHydraulicDiameter (std::shared_ptr< AMP::Mesh::Mesh > clad, std::shared_ptr< AMP::Mesh::Mesh > subchannel, AMP::AMP_MPI comm)
	Function to get the hydraulic diameter on the clad surface.
void	getCladProperties (AMP::AMP_MPI comm, std::shared_ptr< AMP::Mesh::Mesh > clad, std::vector< double > &x, std::vector< double > &y, std::vector< double > &diam)
	Function to get the coordinates of the clad.
std::vector< double >	getHeatFluxClad (std::vector< double > z, std::vector< AMP::Mesh::MeshElementID > face_ids, double channelDiam, double reynolds, double prandtl, double fraction, std::shared_ptr< SubchannelPhysicsModel > subchannelPhysicsModel, AMP::LinearAlgebra::Vector::const_shared_ptr flow, AMP::LinearAlgebra::Vector::const_shared_ptr clad_temp)
	Function to get the heat flux of the rod.
std::vector< double >	getHeatFluxGeneration (std::string shape, std::vector< double > z, double diam, double Q_tot)
	Function to get the heat flux of the rod.
std::vector< double >	getHeatFluxGenerationWithDiscretizationError (std::string shape, std::vector< double > z, double diam, double Q_tot)
	Function to get the heat flux of the rod; uses a midpoint average, leading to discretization error.
size_t	getNumberOfSubchannels (std::shared_ptr< AMP::Mesh::Mesh > subchannel)
	Function to get the number of subchannels from the mesh.
void	getSubchannelProperties (std::shared_ptr< AMP::Mesh::Mesh > subchannel, const std::vector< double > &clad_x, const std::vector< double > &clad_y, const std::vector< double > &clad_d, std::vector< double > &x, std::vector< double > &y, std::vector< double > &area, std::vector< double > &diam, std::vector< double > &rod_diameter, std::vector< double > &channel_fraction)
	Function to get some basic properties for each subchannel based on the mesh.
std::shared_ptr< AMP::Mesh::Mesh >	subsetForSubchannel (std::shared_ptr< AMP::Mesh::Mesh > subchannel, size_t i, size_t j)
	Function to subset the subchannel mesh for a particular subchannel.

Variables
constexpr double	scaleAxialMassFlowRate
constexpr double	scaleEnthalpy
constexpr double	scaleLateralMassFlowRate
constexpr double	scalePressure

Function Documentation

convert()

std::shared_ptr< const SubchannelOperatorParameters > AMP::Operator::Subchannel::convert

(

std::shared_ptr< const OperatorParameters >

)

getCladHydraulicDiameter()

AMP::LinearAlgebra::Vector::shared_ptr AMP::Operator::Subchannel::getCladHydraulicDiameter	(	std::shared_ptr< AMP::Mesh::Mesh >	clad,
		std::shared_ptr< AMP::Mesh::Mesh >	subchannel,
		AMP::AMP_MPI	comm
	)

Function to get the hydraulic diameter on the clad surface.

This function returns the hydraulic diameter of the subchannels on the clad surface

Parameters

clad	Clad mesh
subchannel	Subchannel mesh
comm	Communicator to use for operatation (must be >= comm of both clad and subchannel, may be comm_world)

getCladProperties()

void AMP::Operator::Subchannel::getCladProperties	(	AMP::AMP_MPI	comm,
		std::shared_ptr< AMP::Mesh::Mesh >	clad,
		std::vector< double > &	x,
		std::vector< double > &	y,
		std::vector< double > &	diam
	)

Function to get the coordinates of the clad.

This function returns the coordinates and diameter of the clad meshes across all processors

Parameters

[in]	comm	Communicator over which we want to gather the results (must be >= clad mesh comm)
[in]	clad	Multimesh containing the clad meshes
[out]	x	The x-coordinates of the clad
[out]	y	The y-coordinates of the clad
[out]	diam	The diameters of the clad

getHeatFluxClad()

std::vector< double > AMP::Operator::Subchannel::getHeatFluxClad	(	std::vector< double >	z,
		std::vector< AMP::Mesh::MeshElementID >	face_ids,
		double	channelDiam,
		double	reynolds,
		double	prandtl,
		double	fraction,
		std::shared_ptr< SubchannelPhysicsModel >	subchannelPhysicsModel,
		AMP::LinearAlgebra::Vector::const_shared_ptr	flow,
		AMP::LinearAlgebra::Vector::const_shared_ptr	clad_temp
	)

Function to get the heat flux of the rod.

This function returns the heat flux of the rod (W/m^2)

Parameters

z	The axial positions of the faces
face_ids	Element ids of the faces of interest (only used for source="averageCladdingTemperature")
channelDiam	The effective channel diameter
reynolds	The reynolds number
prandtl	The prandtl number
fraction	The fraction of a rod in the channel
subchannelPhysicsModel	The subchannel physics model
flow	The flow vector (h and P) (only used for source="averageCladdingTemperature")
clad_temp	The clad temperature mapped onto the faces (only used for source="averageCladdingTemperature")

getHeatFluxGeneration()

std::vector< double > AMP::Operator::Subchannel::getHeatFluxGeneration	(	std::string	shape,
		std::vector< double >	z,
		double	diam,
		double	Q_tot
	)

Function to get the heat flux of the rod.

This function returns the heat flux of the rod (W/m^2) assuming a given generation rate

Parameters

shape	The heat shape
z	The axial positions of the faces (m)
diam	The diameter of the fuel rods (m)
Q_tot	The total heat generation rate (W)

getHeatFluxGenerationWithDiscretizationError()

std::vector< double > AMP::Operator::Subchannel::getHeatFluxGenerationWithDiscretizationError	(	std::string	shape,
		std::vector< double >	z,
		double	diam,
		double	Q_tot
	)

Function to get the heat flux of the rod; uses a midpoint average, leading to discretization error.

This function returns the heat flux of the rod (W/m^2) assuming a given generation rate

Parameters

shape	The heat shape
z	The axial positions of the faces (m)
diam	The diameter of the fuel rods (m)
Q_tot	The total heat generation rate (W)

getNumberOfSubchannels()

size_t AMP::Operator::Subchannel::getNumberOfSubchannels

(

std::shared_ptr< AMP::Mesh::Mesh >

subchannel

)

Function to get the number of subchannels from the mesh.

Parameters

[in]

subchannel

The subchannel mesh

getSubchannelProperties()

void AMP::Operator::Subchannel::getSubchannelProperties	(	std::shared_ptr< AMP::Mesh::Mesh >	subchannel,
		const std::vector< double > &	clad_x,
		const std::vector< double > &	clad_y,
		const std::vector< double > &	clad_d,
		std::vector< double > &	x,
		std::vector< double > &	y,
		std::vector< double > &	area,
		std::vector< double > &	diam,
		std::vector< double > &	rod_diameter,
		std::vector< double > &	channel_fraction
	)

Function to get some basic properties for each subchannel based on the mesh.

This function returns some basic properties including the hydraulic diameter, subchannel area, etc from the mesh

Parameters

[in]	subchannel	The subchannel mesh
[in]	clad_x	The x-coordinates of the clad
[in]	clad_y	The y-coordinates of the clad
[in]	clad_d	The diameters of the clad
[out]	x	The x-coordinates of the subchannel boundaries (Nx+1)
[out]	y	The y-coordinates of the subchannel boundaries (Ny+1)
[out]	area	The flow area of the subchannels (Nx x Ny)
[out]	diam	The hydraulic diameter of the subchannels defined using the wetted rod perimeter (Nx x Ny)
[out]	rod_diameter	The average rod diameter for each subchannel (Nx x Ny)
[out]	channel_fraction	The fraction of the rod in each subchannel (Nx x Ny)

subsetForSubchannel()

std::shared_ptr< AMP::Mesh::Mesh > AMP::Operator::Subchannel::subsetForSubchannel	(	std::shared_ptr< AMP::Mesh::Mesh >	subchannel,
		size_t	i,
		size_t	j
	)

Function to subset the subchannel mesh for a particular subchannel.

Parameters

[in]	subchannel	The subchannel mesh
[in]	i	The x-index of the subchannel of interest
[in]	j	The y-index of the subchannel of interest

Variable Documentation

scaleAxialMassFlowRate

constexpr double AMP::Operator::Subchannel::scaleAxialMassFlowRate

constexpr

Initial value:

=
    1e-3

Definition at line 7 of file SubchannelConstants.h.

scaleEnthalpy

constexpr double AMP::Operator::Subchannel::scaleEnthalpy

constexpr

Initial value:

=
    1e-3

Definition at line 9 of file SubchannelConstants.h.

scaleLateralMassFlowRate

constexpr double AMP::Operator::Subchannel::scaleLateralMassFlowRate

constexpr

Initial value:

=
    1e-3

Definition at line 13 of file SubchannelConstants.h.

scalePressure

constexpr double AMP::Operator::Subchannel::scalePressure

constexpr

Initial value:

=
    1e-3

Definition at line 11 of file SubchannelConstants.h.