NtAction Class Reference

#include <NtAction.h>

Inheritance diagram for NtAction:

Public Member Functions
	NtAction (const InputParameters &params)
virtual void	act () override
Public Member Functions inherited from VariableNotAMooseObjectAction
	VariableNotAMooseObjectAction (const InputParameters &params)

Static Public Member Functions
static InputParameters	validParams ()
Static Public Member Functions inherited from VariableNotAMooseObjectAction
static InputParameters	validParams ()

Protected Member Functions
void	addNtKernel (const unsigned &op, const std::string &var_name, const std::string &kernel_type, const std::vector< VariableName > &all_var_names)
void	addCoupledFissionKernel (const unsigned &op, const std::string &var_name, const std::vector< VariableName > &all_var_names)
void	addDelayedNeutronSource (const unsigned &op, const std::string &var_name)
Protected Member Functions inherited from VariableNotAMooseObjectAction
std::set< SubdomainID >	getSubdomainIDs ()
void	addVariable (const std::string &var_name)

Protected Attributes
unsigned int	_num_precursor_groups
	number of precursor groups
std::string	_var_name_base
	base name for neutron variables
unsigned int	_num_groups
	number of energy groups

Detailed Description

Add neutronics kernels and variables to MSR simulations automatically. When writing the multigroup diffusion equation:

\[ \frac{1}{v_g}\frac{\partial {\phi}_g}{\partial t} = \nabla \cdot D_g \nabla {\phi}_g + \sum_{g \ne g'}^G {\Sigma_{g'\rightarrow g}^s} {\phi}_{g'} + \chi_g^p \sum_{g' = 1}^G (1 - \beta) \nu {\Sigma_{g'}^f} {\phi}_{g'} + \chi_g^d \sum_i^I \lambda_i {C_i} - {\Sigma_g^r} {\phi_g} \]

it's clearly the case that many terms are involved. Moltres, and MOOSE in general represent each term as a "kernel". This action adds all of the required kernels for this problem to the simulation. In addition, when using many flux variables, it adds the required variables to the problem as well.

Constructor & Destructor Documentation

NtAction()

NtAction::NtAction

(

const InputParameters &

params

)

Member Function Documentation

act()

void NtAction::act ( )

overridevirtual

addCoupledFissionKernel()

void NtAction::addCoupledFissionKernel ( const unsigned &  op, const std::string &  var_name, const std::vector< VariableName > &  all_var_names  )

protected

Adds CoupledFissionKernel kernel

Parameters

op	The zero-based index for the precursor group the kernel acts on
var_name	The name of the variable the kernel acts on
all_var_names	Vector of the names of all group flux variables

addDelayedNeutronSource()

void NtAction::addDelayedNeutronSource ( const unsigned &  op, const std::string &  var_name  )

protected

Adds DelayedNeutronSource kernel

Parameters

op	The zero-based index for the precursor group the kernel acts on
var_name	The name of the variable the kernel acts on

addNtKernel()

void NtAction::addNtKernel ( const unsigned &  op, const std::string &  var_name, const std::string &  kernel_type, const std::vector< VariableName > &  all_var_names  )

protected

Adds non-source neutronics kernel

Parameters

op	The zero-based index for the precursor group the kernel acts on
var_name	The name of the variable the kernel acts on
kernel_type	The kernel type to be added
all_var_names	Vector of the names of all group flux variables

validParams()

InputParameters NtAction::validParams ( )

static

Member Data Documentation

_num_groups

unsigned int NtAction::_num_groups

protected

number of energy groups

_num_precursor_groups

unsigned int NtAction::_num_precursor_groups

protected

number of precursor groups

_var_name_base

std::string NtAction::_var_name_base

protected

base name for neutron variables

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

• include/actions/NtAction.h
• src/actions/NtAction.C