Radiative tranfer equation solver using Monte-Carlo simulation. More...

#include <CD_McPhoto.H>

Inheritance diagram for McPhoto:

Collaboration diagram for McPhoto:

[legend]

Public Types
enum class	WhichContainer { Photons , Bulk , EB , Domain , Source }
	Enum class for identifying various containers. Only used for interface reasons.

Public Member Functions
	McPhoto ()
	Constructor.

	McPhoto (const McPhoto &a_other)
	Disallowed copy constructor.

	McPhoto (const McPhoto &&a_other)
	Disallowed move constructor.

McPhoto &	operator= (const McPhoto &a_other)
	Disallowed assignment operator.

McPhoto &	operator= (const McPhoto &&a_other)
	Disallowed move assignement operator.

virtual	~McPhoto ()
	Destructor.

virtual bool	advance (const Real a_dt, EBAMRCellData &a_phi, const EBAMRCellData &a_source, const bool a_zeroPhi=false) override
	Advance RTE and deposit photon particles on the mesh. More...

virtual bool	isInstantaneous ()
	Instantaneous solver or not.

virtual void	advancePhotonsInstantaneous (ParticleContainer< Photon > &a_bulkPhotons, ParticleContainer< Photon > &a_ebPhotons, ParticleContainer< Photon > &a_domainPhotons, ParticleContainer< Photon > &a_photons)
	Move photons and absorb them on various objects. More...

virtual void	advancePhotonsTransient (ParticleContainer< Photon > &a_bulkPhotons, ParticleContainer< Photon > &a_ebPhotons, ParticleContainer< Photon > &a_domainPhotons, ParticleContainer< Photon > &a_photons, const Real a_dt)
	Move photons and absorb them on various objects. More...

virtual void	computeNumPhysicalPhotons (EBAMRCellData &a_numPhysPhotonsTotal, EBAMRCellData &a_numPhysPhotonsPerPacket, const EBAMRCellData &a_source, const Real a_dt) const noexcept
	Compute the number of physical photons in each grid cell. More...

virtual void	generateComputationalPhotons (ParticleContainer< Photon > &a_photons, const EBAMRCellData &a_numPhysicalPhotons, const size_t a_maxPhotonsPerCell) const noexcept
	Generate computational photons. More...

virtual void	dirtySamplePhotons (ParticleContainer< PointParticle > &a_photons, EBAMRCellData &a_phi, const EBAMRCellData &a_numPhysicalPhotons, const size_t a_maxPhotonsPerCell) const noexcept
	Dirty-sampling method for photons. More...

virtual void	remap ()
	Remap computational particles. This remaps m_photons.

virtual void	remap (ParticleContainer< Photon > &a_photons)
	Remap computational particles. More...

virtual void	depositPhotons ()
	Deposit photons on the mesh. More...

template<class P , const Real &(P::*)() const particleScalarField>
void	depositPhotons (EBAMRCellData &a_phi, ParticleContainer< P > &a_particles, const DepositionType &a_deposition) const noexcept
	Deposit photons. More...

virtual void	sortPhotonsByCell (const WhichContainer &a_which)
	Sort container by cell. More...

virtual void	sortPhotonsByPatch (const WhichContainer &a_which)
	Sort container by patch. More...

virtual void	parseOptions () override
	Parse class options.

virtual void	parseRuntimeOptions () override
	Parse runtime options.

virtual void	allocate () override
	Allocate internal storage.

virtual void	preRegrid (const int a_base, const int a_oldFinestLevel) override
	preRegrid operations More...

virtual void	deallocate () override
	Deallocate internal storage.

virtual void	regrid (const int a_lmin, const int a_oldFinestLevel, const int a_newFinestLevel) override
	Regrid function for this class. More...

virtual void	registerOperators () override
	Register operators that this solver needs.

virtual void	computeBoundaryFlux (EBAMRIVData &a_ebFlux, const EBAMRCellData &a_phi) override
	Compute the boundary flux. More...

virtual void	computeDomainFlux (EBAMRIFData &a_domainFlux, const EBAMRCellData &a_phi) override
	Compute the domain flux. More...

virtual void	computeFlux (EBAMRCellData &a_flux, const EBAMRCellData &a_phi) override
	Compute the flux. More...

virtual void	computeDensity (EBAMRCellData &a_isotropic, const EBAMRCellData &a_phi) override
	Compute isotropic radiative density from mesh solution. More...

virtual void	clear (const WhichContainer &a_which)
	Clear data holder. More...

virtual void	clear ()
	Clear data holder.

virtual void	clear (ParticleContainer< Photon > &a_photons)
	Clear data holder. More...

virtual void	clear (AMRParticles< Photon > &a_photons)
	Clear data holder. More...

virtual void	writePlotFile () override
	Write plot file. More...

virtual void	writePlotData (LevelData< EBCellFAB > &a_output, int &a_icomp, const std::string a_outputRealm, const int a_level) const noexcept override
	Write plot data. More...

virtual Vector< std::string >	getPlotVariableNames () const override
	Write checkpoint data into handle. More...

virtual int	getNumberOfPlotVariables () const override
	Get number of output variables. More...

virtual int	countPhotons (const AMRParticles< Photon > &a_photons) const
	Count number of photons in particle list. More...

virtual ParticleContainer< Photon > &	getPhotons ()
	Get m_photons. More...

virtual ParticleContainer< Photon > &	getBulkPhotons ()
	Get bulk photons, i.e. photons absorbed on the mesh. More...

virtual ParticleContainer< Photon > &	getEbPhotons ()
	Get eb Photons, i.e. photons absorbed on the EB. More...

virtual ParticleContainer< Photon > &	getDomainPhotons ()
	Get domain photons, i.e. photons absorbed on domain edges/faces. More...

virtual ParticleContainer< Photon > &	getSourcePhotons ()
	Get source photons. More...

virtual int	getMaxPhotonsPerCell () const noexcept
	Get maximum number of photons generated per cell.

virtual int	getNumSamplingPackets () const noexcept
	Get maximum number of photons generated per cell.

virtual void	computeLoads (Vector< long long > &a_loads, const DisjointBoxLayout &a_dbl, const int a_level) const noexcept override
	Get computational loads for a specific grid level. This computes the number of photons in the bulk data holder. More...

Public Member Functions inherited from RtSolver
	RtSolver ()
	Constructor.

virtual	~RtSolver ()
	Constructor (does nothing)

virtual std::string	getName ()
	Get solver name.

virtual const std::string	getRealm () const
	Get the realm where the solver lives.

virtual bool	advance (const Real a_dt, const bool a_zeroPhi=false)
	Advance equation one time step. More...

virtual bool	advance (const Real a_dt, EBAMRCellData &a_phi, const bool a_zeroPhi=false)
	Advance method. Advances one time step. More...

virtual void	setRealm (const std::string a_realm)
	Set realm where this solver lives. More...

virtual void	setRtSpecies (const RefCountedPtr< RtSpecies > &a_species)
	Set the radiative transfer species (RtSpecies) More...

virtual void	setComputationalGeometry (const RefCountedPtr< ComputationalGeometry > a_computationalGeometry)
	Set computational geometry. More...

virtual void	setAmr (const RefCountedPtr< AmrMesh > &a_amr)
	Set the amr object. More...

virtual void	setPhase (phase::which_phase a_phase=phase::gas)
	Set phase. More...

virtual void	setVerbosity (const int a_verbosity)
	Set verbosity. More...

virtual void	setTime (const int a_step, const Real a_time, const Real a_dt)
	Set the time for this solver. More...

virtual void	setStationary (const bool a_stationary)
	Set stationary solver or not. More...

virtual void	sanityCheck ()
	Sanity check.

virtual bool	isStationary ()
	Check if solver is stationary.

virtual void	initialData ()
	Fill solver with initial data. By default, this sets internal data to zero. More...

virtual void	setSource (const EBAMRCellData &a_source)
	Set source term. More...

virtual void	setSource (const Real a_source)
	Set source. More...

virtual void	setSource (const std::function< Real(const RealVect a_pos)> a_source)
	Set source. More...

virtual Real	getTime () const
	Get current time. More...

virtual phase::which_phase	getPhase ()
	Get the RTE phase. More...

virtual EBAMRCellData &	getPhi ()
	Get solver state. More...

virtual EBAMRCellData &	getSource ()
	Get multifluid source. More...

virtual EBAMRFluxData &	getKappa ()
	Get the absorption length. More...

virtual EBAMRIVData &	getKappaEb ()
	Get the absorption coefficient on irregular EB faces. More...

virtual RefCountedPtr< RtSpecies > &	getSpecies ()
	Get species.

Protected Types
enum class	PhotonGeneration { Deterministic , Stochastic }
	Enum for interpreting how photons are generated when using fluid codes.

enum class	SourceType { Number , PerVol , PerVolSecond , PerSecond }
	Enum for adding flexibility in what the fluid source term contains.

enum class	IntersectionEB { Raycast , Bisection }
	An enum for switching between various types of EB intersection algorithms when intersecting photons with the EB. More...

Protected Member Functions
size_t	drawPhotons (const Real a_source, const Real a_volume, const Real a_dt) const noexcept
	Draw photons in a cell and volume. More...

int	domainBcMap (const int a_dir, const Side::LoHiSide a_side)
	Mapping function for domain boundary conditions. More...

Real	randomExponential (const Real a_mean) const noexcept
	Random exponential trial. More...

template<class P , const Real &(P::*)() const particleScalarField>
void	depositKappaConservative (EBAMRCellData &a_phi, ParticleContainer< P > &a_particles, const DepositionType a_deposition, const CoarseFineDeposition a_coarseFineDeposition) const noexcept
	This computes the "conservative" deposition, multiplied by kappa. More...

void	depositNonConservative (EBAMRIVData &a_depositionNC, const EBAMRCellData &a_depositionKappaC) const noexcept
	Make the "non-conservative" kappa deposition. More...

void	depositHybrid (EBAMRCellData &a_depositionH, EBAMRIVData &a_massDifference, const EBAMRIVData &a_depositionNC) const noexcept
	Make the hybrid deposition. Also compute the mass difference. More...

void	parseTransparentBoundaries ()
	Turn on/off transparent boundaries.

void	parseDirtySampling ()
	Parse dirty sampling for photons. More...

void	parseDivergenceComputation ()
	Parse the divergence computation, i.e. if we blend with non-conservative divergence or not.

void	parsePseudoPhotons ()
	Parse pseudophotons, i.e. parse how many photons can be generated per cell.

void	parsePhotoGeneration ()
	Parse photogeneration type.

void	parseInstantaneous ()
	Parse whether instantaneous propagation or not.

void	parseSourceType ()
	Parse source term type.

void	parseIntersectionEB ()
	Parse EB intersection algorithm.

void	parseDeposition ()
	Parse deposition method.

void	parsePlotVariables ()
	Parse plot variables.

virtual void	depositPhotonsNGP (LevelData< EBCellFAB > &a_output, const ParticleContainer< Photon > &a_particles, const int a_level) const noexcept
	Do an NGP deposit on a specific grid level. Used for IO. More...

Protected Member Functions inherited from RtSolver
void	setEbIndexSpace (const RefCountedPtr< EBIndexSpace > &a_ebis)
	Set ebis.

void	parseVerbosity () noexcept
	Parse verbosity.

virtual void	writeData (LevelData< EBCellFAB > &a_output, int &a_comp, const EBAMRCellData &a_data, const std::string a_outputRealm, const int a_level, const bool a_interpToCentroids, const bool a_interpGhost) const noexcept
	Write data to output. Convenience function. More...

Protected Attributes
bool	m_transparentEB
	Turn on/off transparent boundaries.

bool	m_instantaneous
	Instantaneous transport or not.

bool	m_blendConservation
	Flag for blending the deposition clouds with the nonconservative divergence.

bool	m_depositNumber
	If true, the NUMBER of of Photons will be deposited in each cell.

bool	m_plotNumbers
	Switch for plotting numbers or densities.

bool	m_plotPhotons
	Check if m_photons should be plotted.

bool	m_plotBulkPhotons
	Check if m_bulkPhotons should be plotted.

bool	m_plotSourcePhotons
	Check if source_bulkPhotons should be plotted.

bool	m_plotEBPhotons
	Check if m_ebPhotons should be plotted.

bool	m_plotDomainPhotons
	Check if m_ebPhotons should be plotted.

bool	m_dirtySampling
	Dirty sampling or not.

size_t	m_maxPhotonsGeneratedPerCell
	Number of computational photons generated per cell.

int	m_numSamplingPackets

int	m_seed
	RNG seed.

int	m_haloBuffer
	Halo size for particles.

Real	m_bisectStep
	Bisection step for when we use the bisection intersection algorithm.

PhotonGeneration	m_photoGenerationMethod
	Photon generation type.

SourceType	m_sourceType
	Source type.

IntersectionEB	m_intersectionEB

DepositionType	m_deposition
	Deposition type.

CoarseFineDeposition	m_coarseFineDeposition
	Coarse-fine deposition strategy.

EBAMRCellData	m_scratch
	Coarse data for interpolation of deposition clouds.

EBAMRIVData	m_depositionNC
	Scratch storage for holding the non-conservative deposition.

EBAMRIVData	m_massDiff
	Scratch storage for holding the mass difference when using hybrid deposition.

ParticleContainer< Photon >	m_photons
	All particles.

ParticleContainer< Photon >	m_bulkPhotons
	Photons absorbed in the volume.

ParticleContainer< Photon >	m_ebPhotons
	This is a particle container for Photons that crossed EBs. It is filled during the advance step.

ParticleContainer< Photon >	m_domainPhotons
	This is a particle container for Photons that crossed boundaries. It is filled during the advance step.

ParticleContainer< Photon >	m_sourcePhotons
	This is a particle container that can be used to add Photons directly.

Protected Attributes inherited from RtSolver
Location::Cell	m_dataLocation
	Data location.

std::string	m_realm
	Realm where this solver lives.

RefCountedPtr< EBIndexSpace >	m_ebis
	EBIndexSpace for this solver.

RefCountedPtr< RtSpecies >	m_rtSpecies
	Radiative transfer species (contains meta-information like initial conditions)

RefCountedPtr< ComputationalGeometry >	m_computationalGeometry
	Computational geometry.

RefCountedPtr< AmrMesh >	m_amr
	AMR; needed for grid stuff.

phase::which_phase	m_phase
	Phase.

std::string	m_name
	Name for this solver.

std::string	m_className
	Class name – needed because inherited classes will be named different.

EBAMRCellData	m_cachePhi
	Cached state used for regridding.

EBAMRCellData	m_phi
	Internal state. More...

EBAMRCellData	m_source
	Source term. More...

EBAMRFluxData	m_kappa
	Absorption coefficient.

EBAMRIVData	m_kappaEB
	Absorption coefficient on EB faces.

Real	m_time
	Time.

Real	m_dt
	Time increment.

bool	m_stationary
	Stationary solver or not.

bool	m_plotPhi
	Output state.

bool	m_plotSource
	Output source term.

int	m_verbosity

int	m_timeStep
	Time step.

Additional Inherited Members
Static Protected Attributes inherited from RtSolver
static constexpr int	m_comp = 0
	Default component that we solve for.

static constexpr int	m_nComp = 1
	Default number of components.

Detailed Description

Radiative tranfer equation solver using Monte-Carlo simulation.

This class is, by default, a non-stationary radiative transfer solver which simulates computational photons that can also be deposited on the mesh. Various options are available for specifying how the photons are generated, and how they are propagated (e.g. with speed of light or instantaneously). Note that this solver runs its own intersection tests with the EB due to dependencies on how the photons are moved (we store free-flight photons, absorbed photons, intersected photons, etc).

Note: The solver is missing appropriate boundary conditions on domain faces.

Member Enumeration Documentation

◆ IntersectionEB

enum McPhoto::IntersectionEB

strongprotected

An enum for switching between various types of EB intersection algorithms when intersecting photons with the EB.

Raycast means ray-casting algorithm. Bisection means that the traveled path is divided into intervals and we apply a bisection algorithm for computing the intersection point. LSF is just ray-casting, but it uses the implicit function on the mesh rather than calling it directly.

Member Function Documentation

◆ advance()

bool McPhoto::advance	(	const Real	a_dt,
		EBAMRCellData &	a_phi,
		const EBAMRCellData &	a_source,
		const bool	a_zeroPhi = `false`
	)

overridevirtual

Advance RTE and deposit photon particles on the mesh.

Parameters

[in]	a_dt	Time step
[out]	a_phi	Photon density on the mesh
[in]	a_source	Source term, i.e. number of photons produced per unit time. The photons will be generated based on what the user specifies in the input parameters for this class. I.e., whether or not a_source will generate stochastic or deterministic photons, and scaled based on what a_source actually contains (number of photons, number/volume, number/second, number/(volume*second)).
[in]	a_zeroPhi	Dead parameter not used in this implementation.

Note: This is the "fluid interface" to the radiative transfer solver in which the solver uses discrete photons for sampling the isotropic density. Particle codes will probably use advancePhotonsInstantaneous or advancePhotonsTransient .

This routine switches between stationary and transient solvers depending on whether or not the solver is stationary.

Implements RtSolver.

◆ advancePhotonsInstantaneous()

void McPhoto::advancePhotonsInstantaneous	(	ParticleContainer< Photon > &	a_bulkPhotons,
		ParticleContainer< Photon > &	a_ebPhotons,
		ParticleContainer< Photon > &	a_domainPhotons,
		ParticleContainer< Photon > &	a_photons
	)

virtual

Move photons and absorb them on various objects.

Parameters

[out]	a_bulkPhotons	Photons absorbed on the mesh
[out]	a_ebPhotons	Photons absorbed on the EB
[out]	a_domainPhotons	Photons absorbed on the domain edges (faces)
[in,out]	a_photons	Original photons

Note: This routine moves photons with an instantaneous kernel, i.e. all photons are always absorbed and none are left behind as free-flight photons (i.e. a_photons will be empty on output)

◆ advancePhotonsTransient()

void McPhoto::advancePhotonsTransient	(	ParticleContainer< Photon > &	a_bulkPhotons,
		ParticleContainer< Photon > &	a_ebPhotons,
		ParticleContainer< Photon > &	a_domainPhotons,
		ParticleContainer< Photon > &	a_photons,
		const Real	a_dt
	)

virtual

Move photons and absorb them on various objects.

Parameters

[out]	a_bulkPhotons	Photons absorbed on the mesh
[out]	a_ebPhotons	Photons absorbed on the EB
[out]	a_domainPhotons	Photons absorbed on the domain edges (faces)
[in,out]	a_photons	Original photons
[in]	a_dt	Time step

Note: This routine moves photons with a transient kernel, i.e. all photons propagate at most c*dt and checks are made to determine if they are absorbed on the mesh or various objects (EB, domain). a_photons may be non-empty on output, in which case there are still free-flight photons in the solver.

◆ clear() [1/3]

void McPhoto::clear ( AMRParticles< Photon > & a_photons )

virtual

Clear data holder.

Parameters

[in] a_photons Which container to clear

◆ clear() [2/3]

void McPhoto::clear ( const WhichContainer & a_which )

virtual

Clear data holder.

Parameters

[in] a_which Which container to clear

◆ clear() [3/3]

void McPhoto::clear ( ParticleContainer< Photon > & a_photons )

virtual

Clear data holder.

Parameters

[in] a_photons Which container to clear

◆ computeBoundaryFlux()

void McPhoto::computeBoundaryFlux	(	EBAMRIVData &	a_ebFlux,
		const EBAMRCellData &	a_phi
	)

overridevirtual

Compute the boundary flux.

Parameters

[out]	a_ebFlux	Flux on the EB
[in]	a_phi	RTE solution

Note: This sets the boundary flux to zero. If you want to use a boundary flux, use it through m_ebPhotons

Implements RtSolver.

◆ computeDensity()

void McPhoto::computeDensity	(	EBAMRCellData &	a_isotropic,
		const EBAMRCellData &	a_phi
	)

overridevirtual

Compute isotropic radiative density from mesh solution.

Parameters

[out]	a_isotropic	Isotropic part of RTE solution
[in]	a_phi	RTE solution

Note: Issues an error - this routine doesn't make a lot of sense, really.

Implements RtSolver.

◆ computeDomainFlux()

void McPhoto::computeDomainFlux	(	EBAMRIFData &	a_domainFlux,
		const EBAMRCellData &	a_phi
	)

overridevirtual

Compute the domain flux.

Parameters

[out]	a_domainFlux	Domain flux
[in]	a_phi	RTE solution

Note: This sets the boundary flux to zero. If you want to use a domain flux, use it through m_domainPhotons

Implements RtSolver.

◆ computeFlux()

void McPhoto::computeFlux	(	EBAMRCellData &	a_flux,
		const EBAMRCellData &	a_phi
	)

overridevirtual

Compute the flux.

Parameters

[out]	a_flux	Flux
[in]	a_phi	RTE solution

Note: Issues an error – currently don't know how to compute the mesh flux from computational photons....

Implements RtSolver.

◆ computeLoads()

void McPhoto::computeLoads	(	Vector< long long > &	a_loads,
		const DisjointBoxLayout &	a_dbl,
		const int	a_level
	)		const

overridevirtualnoexcept

Get computational loads for a specific grid level. This computes the number of photons in the bulk data holder.

Parameters

[out]	a_loads	Grid loads for this level.
[in]	a_dbl	Grids on input level
[in]	a_level	Input level

Returns: Loads for each box on a grid level.

Note: The return vector should have the same order as the boxes in a_dbl. E.g. ret[0] must be the load for a_dbl.boxArray()[0];

The default implementation returns the number of cells in the grid patch as a proxy for the load.

Reimplemented from RtSolver.

◆ computeNumPhysicalPhotons()

void McPhoto::computeNumPhysicalPhotons	(	EBAMRCellData &	a_numPhysPhotonsTotal,
		EBAMRCellData &	a_numPhysPhotonsPerPacket,
		const EBAMRCellData &	a_source,
		const Real	a_dt
	)		const

virtualnoexcept

Compute the number of physical photons in each grid cell.

Parameters

[out]	a_numPhysPhotonsTotal	Total number of physical photons to be generated in each grid cell.
[out]	a_numPhysPhotonsPacket	Number of physical photons to be generated in each packet. Must have a components = m_numSamplingPackets
[in]	a_source	Source term – the interpretation of this depends on the user-specified interpretation of the source term.
[in]	a_dt	Time step

◆ countPhotons()

int McPhoto::countPhotons ( const AMRParticles< Photon > & a_photons ) const

virtual

Count number of photons in particle list.

Parameters

[in] a_photons Particle list

◆ depositHybrid()

void McPhoto::depositHybrid	(	EBAMRCellData &	a_depositionH,
		EBAMRIVData &	a_massDifference,
		const EBAMRIVData &	a_depositionNC
	)		const

protectednoexcept

Make the hybrid deposition. Also compute the mass difference.

Parameters

[in,out]	a_depositionH	On input this should be the conservative deposition
[out]	a_massDifference	Mass difference between conservative and non-conservative
[in]	a_depositioNC	Non-conservative deposition

◆ depositKappaConservative()

template<class P , const Real &(P::*)() const particleScalarField>

void McPhoto::depositKappaConservative	(	EBAMRCellData &	a_phi,
		ParticleContainer< P > &	a_particles,
		const DepositionType	a_deposition,
		const CoarseFineDeposition	a_coarseFineDeposition
	)		const

protectednoexcept

This computes the "conservative" deposition, multiplied by kappa.

Parameters

[out]	a_phi	Mesh density.
[in]	a_particles	Particles to be deposited
[in]	a_deposition	Deposition method
[in]	a_coarseFineDeposition	Coarse-fine deposition strategy.

◆ depositNonConservative()

void McPhoto::depositNonConservative	(	EBAMRIVData &	a_depositionNC,
		const EBAMRCellData &	a_depositionKappaC
	)		const

protectednoexcept

Make the "non-conservative" kappa deposition.

Parameters

[out]	a_depositionNC	Non-conservative deposition in cut-cells
[in]	a_depositionKappaC	Conservative deposition

◆ depositPhotons() [1/2]

void McPhoto::depositPhotons ( )

virtual

Deposit photons on the mesh.

This deposits m_photons onto m_phi

◆ depositPhotons() [2/2]

template<class P , const Real &(P::*)() const particleScalarField>

void McPhoto::depositPhotons	(	EBAMRCellData &	a_phi,
		ParticleContainer< P > &	a_particles,
		const DepositionType &	a_deposition
	)		const

noexcept

Deposit photons.

Parameters

[out]	a_phi	Deposited mesh density
[in,out]	a_photons	Computational photons to be deposited
[in]	a_deposition	Deposition method

◆ depositPhotonsNGP()

void McPhoto::depositPhotonsNGP	(	LevelData< EBCellFAB > &	a_output,
		const ParticleContainer< Photon > &	a_particles,
		const int	a_level
	)		const

protectedvirtualnoexcept

Do an NGP deposit on a specific grid level. Used for IO.

Parameters

[out]	a_output	Contains NGP deposition of photons. Ignores cut-cells.
[in]	a_photons	photons
[in]	a_level	Grid level

◆ dirtySamplePhotons()

void McPhoto::dirtySamplePhotons	(	ParticleContainer< PointParticle > &	a_photons,
		EBAMRCellData &	a_phi,
		const EBAMRCellData &	a_numPhysicalPhotons,
		const size_t	a_maxPhotonsPerCell
	)		const

virtualnoexcept

Dirty-sampling method for photons.

This is a "dirty" routine in the sense that it does not respect the EB and avoids filling m_bulkParticles. If you also use an NGP scheme this avoids communication between sampling buckets. But this is not something that we recommend using, unless you have a geometry-less domain. If those are good for you, feel free to use this routine.

Parameters

[in,out]	a_photons	Computational photons. Will be populated and depleted inside the routine.
[in,out]	a_phi	Mesh-based density. Will be incremented by the generated photons.
[in]	a_numPhysicalPhotons	Number of physical photons to add to a_photons
[in]	a_maxPhotonsPerCell	Maximum number of photons generated per cell.

◆ domainBcMap()

int McPhoto::domainBcMap	(	const int	a_dir,
		const Side::LoHiSide	a_side
	)

protected

Mapping function for domain boundary conditions.

Parameters

[in]	a_dir	Coordinate direction
[in]	a_side	Coordinate side

◆ drawPhotons()

size_t McPhoto::drawPhotons	(	const Real	a_source,
		const Real	a_volume,
		const Real	a_dt
	)		const

protectednoexcept

Draw photons in a cell and volume.

Parameters

[in]	a_source	Source term, i.e. number of photons generated/x
[in]	a_volume	Grid cell volume
[in]	a_dt	Time step

The return result of this function depends on the input parameters to this class.

◆ generateComputationalPhotons()

void McPhoto::generateComputationalPhotons	(	ParticleContainer< Photon > &	a_photons,
		const EBAMRCellData &	a_numPhysicalPhotons,
		const size_t	a_maxPhotonsPerCell
	)		const

virtualnoexcept

Generate computational photons.

Parameters

[in,out]	a_photons	Computational photons
[in]	a_numPhysicalPhotons	Number of physical photons to add to a_photons
[in]	a_maxPhotonsPerCell	Maximum number of photons generated per cell.

◆ getBulkPhotons()

ParticleContainer< Photon > & McPhoto::getBulkPhotons ( )

virtual

Get bulk photons, i.e. photons absorbed on the mesh.

Returns: m_bulkPhotons

◆ getDomainPhotons()

ParticleContainer< Photon > & McPhoto::getDomainPhotons ( )

virtual

Get domain photons, i.e. photons absorbed on domain edges/faces.

Returns: m_domainPhotonsl

◆ getEbPhotons()

ParticleContainer< Photon > & McPhoto::getEbPhotons ( )

virtual

Get eb Photons, i.e. photons absorbed on the EB.

Returns: m_ebPhotons

◆ getNumberOfPlotVariables()

int McPhoto::getNumberOfPlotVariables ( ) const

overridevirtual

Get number of output variables.

Returns: Returns number of plot variables that will be written to file in writePlotData

Reimplemented from RtSolver.

◆ getPhotons()

ParticleContainer< Photon > & McPhoto::getPhotons ( )

virtual

Get m_photons.

Returns: m_photons

◆ getPlotVariableNames()

Vector< std::string > McPhoto::getPlotVariableNames ( ) const

overridevirtual

Write checkpoint data into handle.

Parameters

[in,out]	a_handle	HDF5 file
[in]	a_level	Grid level

Read checkpoint data from handle

Parameters

[in,out]	a_handle	HDF5 file
[in]	a_level	Grid level

Get output plot names

Returns: Returns a list of plot variable names.

Reimplemented from RtSolver.

◆ getSourcePhotons()

ParticleContainer< Photon > & McPhoto::getSourcePhotons ( )

virtual

Get source photons.

Returns: m_sourcePhotons

◆ parseDirtySampling()

void McPhoto::parseDirtySampling ( )

protected

Parse dirty sampling for photons.

This is a hidden option – I really don't want it to be part of the regular user interface because the code is not general (only works for instantaneous, non-EB cases where photons aren't even absorbed on the domain boundaries)

◆ preRegrid()

void McPhoto::preRegrid	(	const int	a_base,
		const int	a_oldFinestLevel
	)

overridevirtual

preRegrid operations

Parameters

[in]	a_base	Coarsest level which changes during regrid
[in]	a_oldFinestLevel	Finest grid level before regrid

Implements RtSolver.

◆ randomExponential()

Real McPhoto::randomExponential ( const Real a_mean ) const

protectednoexcept

Random exponential trial.

Parameters

[in] a_mean Mean value in exponential distribution.

◆ regrid()

void McPhoto::regrid	(	const int	a_lmin,
		const int	a_oldFinestLevel,
		const int	a_newFinestLevel
	)

overridevirtual

Regrid function for this class.

Parameters

[in]	a_lmin	Coarsest level that changed during regrid
	[i]	a_oldFinestLevel Finest grid level before the regrid
	[i]	a_newFinestLevel Finest grid level after the regrid

Implements RtSolver.

◆ remap()

void McPhoto::remap ( ParticleContainer< Photon > & a_photons )

virtual

Remap computational particles.

Parameters

[in] a_photons Computational particles to be remapped.

◆ sortPhotonsByCell()

void McPhoto::sortPhotonsByCell ( const WhichContainer & a_which )

virtual

Sort container by cell.

WhichContainer::Photon = m_photons, WhichContainer::EB = m_ebPhotons and so on.

Parameters

[in] a_which Which container to sort.

◆ sortPhotonsByPatch()

void McPhoto::sortPhotonsByPatch ( const WhichContainer & a_which )

virtual

Sort container by patch.

WhichContainer::Photon = m_photons, WhichContainer::EB = m_ebPhotons and so on.

Parameters

[in] a_which Which container to sort.

◆ writePlotData()

void McPhoto::writePlotData	(	LevelData< EBCellFAB > &	a_output,
		int &	a_icomp,
		const std::string	a_outputRealm,
		const int	a_level
	)		const

overridevirtualnoexcept

Write plot data.

Parameters

[in,out]	a_ouput	Output data holder
[in,out]	a_icomp	Starting component where we begin to write data to a_output
[in]	a_outputRealm	Realm where a_output belongs
[in]	a_level	Grid level

Reimplemented from RtSolver.

◆ writePlotFile()

void McPhoto::writePlotFile ( )

overridevirtual

Write plot file.

Note: Currently calls an error because it is not implemented.

Implements RtSolver.

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

Source/RadiativeTransfer/CD_McPhoto.H
Source/RadiativeTransfer/CD_McPhoto.cpp
Source/RadiativeTransfer/CD_McPhotoImplem.H

Public Types

Public Member Functions

Protected Types

Protected Member Functions

Protected Attributes

Additional Inherited Members

Detailed Description

Member Enumeration Documentation

◆ IntersectionEB

Member Function Documentation

◆ advance()

◆ advancePhotonsInstantaneous()

◆ advancePhotonsTransient()

◆ clear() [1/3]

◆ clear() [2/3]

◆ clear() [3/3]

◆ computeBoundaryFlux()

◆ computeDensity()

◆ computeDomainFlux()

◆ computeFlux()

◆ computeLoads()

◆ computeNumPhysicalPhotons()

◆ countPhotons()

◆ depositHybrid()

◆ depositKappaConservative()

◆ depositNonConservative()

◆ depositPhotons() [1/2]

◆ depositPhotons() [2/2]

◆ depositPhotonsNGP()

◆ dirtySamplePhotons()

◆ domainBcMap()

◆ drawPhotons()

◆ generateComputationalPhotons()

◆ getBulkPhotons()

◆ getDomainPhotons()

◆ getEbPhotons()

◆ getNumberOfPlotVariables()

◆ getPhotons()

◆ getPlotVariableNames()

◆ getSourcePhotons()

◆ parseDirtySampling()

◆ preRegrid()

◆ randomExponential()

◆ regrid()

◆ remap()

◆ sortPhotonsByCell()

◆ sortPhotonsByPatch()

◆ writePlotData()

◆ writePlotFile()