Implementation of a parametrized full order unsteady NS problem and preparation of the the reduced matrices for the online solve. More...

#include <UnsteadyNSTurb.H>

Inheritance diagram for UnsteadyNSTurb:

Public Member Functions
	UnsteadyNSTurb ()
	Construct Null.

	UnsteadyNSTurb (int argc, char *argv[])
	Construct with argc and argv.

Eigen::MatrixXd	btTurbulence (label NUmodes, label NSUPmodes)
	bt added matrix for the turbulence treatement

Eigen::Tensor< double, 3 >	turbulenceTensor1 (label NUmodes, label NSUPmodes, label nNutModes)
	ct1 added tensor for the turbulence treatement

Eigen::Tensor< double, 3 >	turbulenceTensor2 (label NUmodes, label NSUPmodes, label nNutModes)
	ct2 added tensor for the turbulence treatement

Eigen::Tensor< double, 3 >	turbulencePPETensor1 (label NUmodes, label NSUPmodes, label NPmodes, label nNutModes)
	ct1PPE added tensor for the turbulence treatement in the PPE method

Eigen::Tensor< double, 3 >	turbulencePPETensor2 (label NUmodes, label NSUPmodes, label NPmodes, label nNutModes)
	ct2PPE added tensor for the turbulence treatement in the PPE method

Eigen::Tensor< double, 3 >	turbulenceAveTensor1 (label NUmodes, label NSUPmodes)
	ct1Ave added tensor for approximation of the averaged part of the eddy viscosity

Eigen::Tensor< double, 3 >	turbulenceAveTensor2 (label NUmodes, label NSUPmodes)
	ct2Ave added tensor for approximation of the averaged part of the eddy viscosity

Eigen::Tensor< double, 3 >	turbulencePPEAveTensor1 (label NUmodes, label NSUPmodes, label NPmodes)
	ct1PPEAve added tensor for approximation of the averaged part of the eddy viscosity with the usage of the PPE approach

Eigen::Tensor< double, 3 >	turbulencePPEAveTensor2 (label NUmodes, label NSUPmodes, label NPmodes)
	ct2PPEAve added tensor for approximation of the averaged part of the eddy viscosity with the usage of the PPE approach

void	truthSolve (List< scalar > mu_now, std::string &offlinepath)
	Perform a truthsolve.

void	projectSUP (fileName folder, label NUmodes, label NPmodes, label NSUPmodes, label nNutModes, bool rbfInterp=true)
	Project using a supremizer approach.

void	projectPPE (fileName folder, label NUmodes, label NPmodes, label NSUPmodes, label nNutModes, bool rbfInterp=true)
	Project using the Poisson Equation for pressure.

List< Eigen::MatrixXd >	velDerivativeCoeff (Eigen::MatrixXd A, Eigen::MatrixXd G, Eigen::VectorXd initSnapInd, Eigen::VectorXd timeSnap)
	A method to compute the two matrices needed for the RBF interpolation by combining the velocity L2 projection coefficients and their time derivatives.

List< Eigen::MatrixXd >	velParCoeff (Eigen::MatrixXd A, Eigen::MatrixXd G)
	A method to compute the two matrices needed for the RBF interpolation by combining the parameter samples values with the velocity L2 projection coefficients.

List< Eigen::MatrixXd >	velParDerivativeCoeff (Eigen::MatrixXd A, Eigen::MatrixXd G, Eigen::VectorXd initSnapInd, Eigen::VectorXd timeSnap)
	A method to compute the two matrices needed for the RBF interpolation by combining the parameter value and the velocity L2 projection coefficients and their time derivatives.

Eigen::MatrixXd	velParDerivativeCoeff (Eigen::MatrixXd A, Eigen::VectorXd par, double timeSnap)
	A method to compute the matrix of the combination of the parameter sample value and the matrix of velocity projection coefficients together with their time derivatives based on the backward scheme.

Public Member Functions inherited from unsteadyNS
	unsteadyNS ()
	Construct Null.

	unsteadyNS (int argc, char *argv[])
	Construct with argc and argv.

void	truthSolve (List< scalar > mu_now, fileName folder="./ITHACAoutput/Offline/")
	Perform a truthsolve.

Public Member Functions inherited from steadyNS
	steadyNS ()
	Null constructor.

	steadyNS (int argc, char *argv[])
	Construct with argc and argv.

	~steadyNS ()

void	truthSolve (List< scalar > mu_now)
	Perform a truthsolve.

void	solvesupremizer (word type="snapshots")
	solve the supremizer either with the use of the pressure snaphots or the pressure modes

void	liftSolve ()
	Perform a lift solve.

void	projectPPE (fileName folder, label NUmodes, label NPmodes, label NSUPmodes=0)
	Project using the Poisson Equation for pressure.

void	projectSUP (fileName folder, label NUmodes, label NPmodes, label NSUPmodes)
	Project using a supremizer approach.

void	discretizeThenProject (fileName folder, label NUmodes, label NPmodes, label NSUPmodes=0)
	Project using the Discretize-then-project approach.

Eigen::MatrixXd	diffusive_term (label NUmodes, label NPmodes, label NSUPmodes)
	Diffusive Term.

Eigen::MatrixXd	diffusive_term_sym (label NUmodes, label NPmodes, label NSUPmodes)
	Symetric diffusive Term.

Eigen::MatrixXd	pressure_gradient_term (label NUmodes, label NPmodes, label NSUPmodes)
	Gradient of pressure.

List< Eigen::MatrixXd >	convective_term (label NUmodes, label NPmodes, label NSUPmodes)
	Convective Term.

Eigen::MatrixXd	mass_term (label NUmodes, label NPmodes, label NSUPmodes)
	Mass Term.

Eigen::MatrixXd	divergence_term (label NUmodes, label NPmodes, label NSUPmodes)
	Divergence Term (supremizer approach)

List< Eigen::MatrixXd >	div_momentum (label NUmodes, label NPmodes)
	Divergence of convective term (PPE approach)

Eigen::Tensor< double, 3 >	divMomentum (label NUmodes, label NPmodes)
	Divergence of convective term (PPE approach)

Eigen::MatrixXd	laplacian_pressure (label NPmodes)
	Laplacian of pressure term (PPE approach)

Eigen::MatrixXd	pressure_BC1 (label NPmodes, label NUmodes)
	Term N° 1 given by the additional boundary condition using a PPE approach.

List< Eigen::MatrixXd >	pressure_BC2 (label NPmodes, label NUmodes)
	Term N° 2 given by the additional boundary condition using a PPE approach.

Eigen::Tensor< double, 3 >	pressureBC2 (label NPmodes, label NUmodes)
	Term N° 2 given by the additional boundary condition using a PPE approach.

Eigen::MatrixXd	pressure_BC3 (label NPmodes, label NUmodes)
	Term N° 3 given by the additional boundary condition using a PPE approach.

Eigen::MatrixXd	pressure_BC4 (label NPmodes, label NUmodes)
	Term N° 4 given by the additional boundary condition using a PPE approach for time-dependent BCs.

List< Eigen::MatrixXd >	bcVelocityVec (label NUmodes, label NSUPmodes)
	Boundary integral modes on boundary used by the penaly method.

List< Eigen::MatrixXd >	bcVelocityMat (label NUmodes, label NSUPmodes)
	Boundary integral modes on boundary used by the penaly method.

Eigen::MatrixXd	diffusive_term_flux_method (label NUmodes, label NPmodes, label NSUPmodes)
	Diffusive Flux Method.

List< Eigen::MatrixXd >	boundary_vector_diffusion (label NUmodes, label NPmodes, label NSUPmodes)
	Boundary vector diffusion term.

List< Eigen::MatrixXd >	boundary_vector_convection (label NUmodes, label NPmodes, label NSUPmodes)
	Boundary vector convection term.

Eigen::Tensor< double, 3 >	convective_term_flux_tens (label NUmodes, label NPmodes, label NSUPmodes)
	Convective Term.

List< Eigen::MatrixXd >	pressure_gradient_term_linsys_div (label NPmodes)
	Laplacian of pressure Linear System - Divergence term.

List< Eigen::MatrixXd >	pressure_gradient_term_linsys_diff (label NPmodes)
	Laplacian of pressure Linear System - Diffusion term.

List< Eigen::MatrixXd >	pressure_gradient_term_linsys_conv (label NPmodes)
	Laplacian of pressure Linear System - Convection term.

Eigen::MatrixXd	diffusive_term_consistent (label NUmodes, label NPmodes, label NSUPmodes)
	Diffusion Term (consistent flux method)

List< Eigen::MatrixXd >	boundary_vector_diffusion_consistent (label NUmodes, label NSUPmodes)
	Boundary vector diffusion term (consistent flux method)

List< Eigen::MatrixXd >	boundary_vector_convection_consistent (label NUmodes, label NSUPmodes)
	Boundary vector convection term - Consistent Flux Method.

Eigen::MatrixXd	mass_matrix_newtime_consistent (label NUmodes, label NPmodes, label NSUPmodes)
	Mass Matrix new time step (consistent flux method)

Eigen::MatrixXd	mass_matrix_oldtime_consistent (label NUmodes, label NPmodes, label NSUPmodes)
	Mass Matrix old time step (consistent flux method)

Eigen::MatrixXd	pressure_gradient_term_consistent (label NUmodes, label NPmodes, label NSUPmodes)
	Pressure Gradient Term (consistent flux method)

Eigen::Tensor< double, 3 >	convective_term_consistent_tens (label NUmodes, label NPmodes, label NSUPmodes)
	Convective Term (consistent flux method)

void	change_viscosity (double mu)
	Function to change the viscosity.

void	forcesMatrices (label NUmodes, label NPmodes, label NSUPmodes)
	Compute lift and drag matrices.

void	forcesMatrices (label nModes)
	Compute lift and drag matrices offline matrices for the case of same number of velocity and pressure modes.

void	reconstructLiftAndDrag (const Eigen::MatrixXd &velCoeffs, const Eigen::MatrixXd &pressureCoeffs, fileName folder)
	Method to reconstruct the forces using velocity and pressure coefficients.

Eigen::Tensor< double, 3 >	convective_term_tens (label NUmodes, label NPmodes, label NSUPmodes)
	Export convective term as a tensor.

void	restart ()
	set U and P back to the values into the 0 folder

Public Member Functions inherited from reductionProblem
	reductionProblem ()
	Construct Null.

	~reductionProblem ()

void	setParameters ()
	Set Parameters Problems.

void	genRandPar ()
	Generate Random Numbers.

void	genRandPar (label tsize)
	Generate Random Numbers given the dimension of the training set.

void	genEquiPar ()
	Generate Equidistributed Numbers.

void	truthSolve ()
	Perform a TruthSolve.

void	assignBC (volVectorField &s, label BC_ind, Vector< double > &value)
	Assign Boundary Condition to a volVectorField.

void	assignBC (volScalarField &s, label BC_ind, double &value)
	Assign Boundary Condition to a volScalarField.

void	reconstructFromMatrix (PtrList< volVectorField > &rec_field2, PtrList< volVectorField > &modes, label Nmodes, Eigen::MatrixXd coeff_matrix)
	Exact reconstruction using a certain number of modes for vector list of fields and the projection coefficients (volVectorField)

void	reconstructFromMatrix (PtrList< volScalarField > &rec_field2, PtrList< volScalarField > &modes, label Nmodes, Eigen::MatrixXd coeff_matrix)
	Exact reconstruction using a certain number of modes for vector list of fields and the projection coefficients (volScalarField)

template<typename T , typename G >
void	assignIF (T &s, G &value)
	Assign internal field condition.

template<typename T >
void	computeLift (T &Lfield, T &liftfield, T &omfield)
	Homogenize the snapshot matrix, it works with PtrList of volVectorField and volScalarField.

template<typename T >
void	computeLiftT (T &Lfield, T &liftfield, T &omfield)
	Virtual function to compute the lifting function.

void	liftSolve ()
	Virtual function to compute the lifting function for scalar field.

void	liftSolveT ()

void	project ()
	General projection operation.

void	writeMu (List< scalar > mu_now)
	Write out a list of scalar corresponding to the parameters used in the truthSolve.

std::vector< SPLINTER::RBFSpline >	getCoeffManifoldRBF (PtrList< volVectorField > snapshots, PtrList< volVectorField > &modes, word rbfBasis="GAUSSIAN")
	Constructs the parameters-coefficients manifold for vector fields, based on RBF-spline model.

std::vector< SPLINTER::RBFSpline >	getCoeffManifoldRBF (PtrList< volScalarField > snapshots, PtrList< volScalarField > &modes, word rbfBasis="GAUSSIAN")
	Constructs the parameters-coefficients manifold for scalar fields, based on RBF-spline model.

std::vector< SPLINTER::BSpline >	getCoeffManifoldSPL (PtrList< volVectorField > snapshots, PtrList< volVectorField > &modes, label splDeg=3)
	Constructs the parameters-coefficients manifold for vector fields, based on the B-spline model.

std::vector< SPLINTER::BSpline >	getCoeffManifoldSPL (PtrList< volScalarField > snapshots, PtrList< volScalarField > &modes, label splDeg=3)
	Constructs the parameters-coefficients manifold for scalar fields, based on the B-spline model.

Public Member Functions inherited from UnsteadyProblem
	UnsteadyProblem ()

void	setTimes (Time &timeObject)

bool	checkWrite (Time &timeObject)
	Function to check if the solution must be exported.

Public Attributes
PtrList< volScalarField >	nutFields
	List of snapshots for the solution for eddy viscosity.

volScalarModes	nutModes
	List of POD modes for eddy viscosity.

PtrList< volScalarField >	nutAve
	List of for eddy viscosity time-averaged fields.

std::vector< SPLINTER::DataTable * >	samples
	Create a Rbf splines for interpolation.

std::vector< SPLINTER::RBFSpline * >	rbfSplines
	Create a samples for interpolation.

Eigen::MatrixXd	btMatrix
	Turbulent viscosity term.

Eigen::MatrixXd	z
	Time-parameter combined matrix.

Eigen::Tensor< double, 3 >	ct1Tensor
	Turbulent viscosity tensor.

Eigen::Tensor< double, 3 >	ct1AveTensor
	Turbulent average viscosity tensor for the splitting approach.

Eigen::Tensor< double, 3 >	ct1PPETensor
	Turbulent viscosity tensor in the PPE equation.

Eigen::Tensor< double, 3 >	ct1PPEAveTensor
	Turbulent average viscosity tensor for the splitting approach in the PPE equation.

Eigen::Tensor< double, 3 >	ct2Tensor
	Turbulent viscosity tensor.

Eigen::Tensor< double, 3 >	ct2AveTensor
	Turbulent average viscosity tensor for the splitting approach.

Eigen::Tensor< double, 3 >	ct2PPETensor
	Turbulent viscosity tensor in the PPE equation.

Eigen::Tensor< double, 3 >	ct2PPEAveTensor
	Turbulent average viscosity tensor for the splitting approach in the PPE equation.

Eigen::Tensor< double, 3 >	cTotalTensor
	Turbulent total viscosity tensor.

Eigen::Tensor< double, 3 >	cTotalAveTensor
	Turbulent total average viscosity tensor for the splitting approach.

Eigen::Tensor< double, 3 >	cTotalPPETensor
	Turbulent total viscosity tensor in the PPE equation.

Eigen::Tensor< double, 3 >	cTotalPPEAveTensor
	Turbulent total average viscosity tensor for the splitting approach in the PPE equation.

Eigen::MatrixXd	bTotalMatrix
	Total B Matrix.

Eigen::MatrixXd	coeffL2
	The matrix of L2 projection coefficients for the eddy viscosity.

Eigen::MatrixXd	velRBF
	Velocity coefficients for RBF interpolation.

Eigen::VectorXd	radii
	RBF shape parameters vector.

double	e = 1
	RBF functions radius.

label	nNutModes
	Number of viscoisty modes used for the projection.

label	interChoice = 1
	Interpolation independent variable choice.

autoPtr< volScalarField >	_nut
	Eddy viscosity field.

autoPtr< surfaceVectorField >	_Uf
	Face velocity field.

label	_pRefCell
	Pressure reference cell.

scalar	_pRefValue
	Pressure reference value.

Public Attributes inherited from unsteadyNS
autoPtr< pimpleControl >	_pimple
	pimpleControl

autoPtr< incompressible::turbulenceModel >	turbulence
	Turbulence model.

bool	adjustTimeStep
	adjustTimeStep

scalar	maxCo
	maxCourant

scalar	maxDeltaT
	maxDeltaT

label	counter2 = 1

word	method

word	timedepbcMethod
	Time-dependent Boundary Method.

Eigen::MatrixXd	timeBCoff

word	timeDerivativeSchemeOrder

Public Attributes inherited from steadyNS
ITHACAparameters *	para

PtrList< volScalarField >	Pfield
	List of pointers used to form the pressure snapshots matrix.

PtrList< volVectorField >	Ufield
	List of pointers used to form the velocity snapshots matrix.

PtrList< volVectorField >	supfield
	List of pointers used to form the supremizer snapshots matrix.

PtrList< surfaceScalarField >	Phifield
	List of pointers used to form the flux snapshots matrix.

volScalarModes	Pmodes
	List of pointers used to form the pressure modes.

volVectorModes	Umodes
	List of pointers used to form the velocity modes.

volVectorModes	supmodes
	List of pointers used to form the supremizer modes.

surfaceScalarModes	Phimodes
	List of pointers used to form the flux modes.

PtrList< volVectorField >	liftfield
	List of pointers used to form the list of lifting functions.

PtrList< volVectorField >	Uomfield
	List of pointers used to form the homogeneous velocity snapshots.

volVectorModes	L_U_SUPmodes
	List of pointers containing the total number of lift, supremizer and velocity modes.

surfaceScalarModes	L_PHImodes
	List of pointers containing the total number of flux modes.

scalar	tolerance
	Tolerance for the residual of the stationary problems, there is the same tolerance for velocity and pressure.

scalar	maxIter
	Number of maximum iterations to be done for the computation of the truth solution.

label	NUmodesOut
	Number of velocity modes to be calculated.

label	NPmodesOut
	Number of pressure modes to be calculated.

label	NSUPmodesOut
	Number of supremizer modes to be calculated.

label	NNutModesOut
	Number of nut modes to be calculated.

label	NUmodes
	Number of velocity modes used for the projection.

label	NPmodes
	Number of pressure modes used for the projection.

label	NSUPmodes
	Number of supremizer modes used for the projection.

label	NNutModes
	Number of nut modes used for the projection.

Eigen::MatrixXd	tauMatrix
	Viscous forces.

Eigen::MatrixXd	nMatrix
	Pressure forces.

List< Eigen::MatrixXd >	bcVelVec
	Boundary term for penalty method - vector.

List< Eigen::MatrixXd >	bcVelMat
	Boundary term for penalty method - matrix.

Eigen::MatrixXd	BP_matrix
	Diffusion term for flux method PPE.

List< Eigen::MatrixXd >	RD_matrix
	Boundary term for diffusion term.

List< Eigen::MatrixXd >	RC_matrix
	Boundary vector for convection term.

List< Eigen::MatrixXd >	SD_matrix
	Boundary term for diffusion term - Consistent Flux Method.

List< Eigen::MatrixXd >	SC_matrix
	Boundary term for convection term - Consistent Flux Method.

Eigen::Tensor< double, 3 >	Cf_tensor
	Convection term for flux method.

Eigen::Tensor< double, 3 >	Ci_tensor
	Convection term - Consistent Flux Method.

List< Eigen::MatrixXd >	LinSysDiv
	Projection Peqn onto Pressure modes - Divergence term.

List< Eigen::MatrixXd >	LinSysDiff
	Projection Peqn onto Pressure modes - Diffusion term.

List< Eigen::MatrixXd >	LinSysConv
	Projection Peqn onto Pressure modes - Convection term.

bool	supex
	Boolean variable to check the existence of the supremizer modes.

autoPtr< volScalarField >	_p
	Pressure field.

autoPtr< volVectorField >	_U
	Velocity field.

autoPtr< volScalarField >	_p0
	Initial Pressure field (for restart purposes)

autoPtr< volVectorField >	_U0
	Initial Velocity field (for restart purposes)

autoPtr< volVectorField >	Uinl
	Initial dummy field with all Dirichlet boundary conditions.

autoPtr< dimensionedScalar >	dt_dummy
	Dummy time step including unit.

autoPtr< dimensionedScalar >	nu_dummy
	Dummy viscocity including unit.

autoPtr< fvMesh >	_mesh
	Mesh.

autoPtr< simpleControl >	_simple
	simpleControl

autoPtr< fv::options >	_fvOptions
	fvOptions

autoPtr< Time >	_runTime
	Time.

autoPtr< surfaceScalarField >	_phi
	Flux.

autoPtr< surfaceScalarField >	_phi0
	Initial Flux (for restart purposes)

autoPtr< incompressible::turbulenceModel >	turbulence
	Turbulence model.

autoPtr< singlePhaseTransportModel >	_laminarTransport
	Laminar transport (used by turbulence model)

autoPtr< IOMRFZoneList >	_MRF
	MRF variable.

label	pRefCell
	Reference pressure cell.

scalar	pRefValue
	Reference pressure value.

scalar	cumulativeContErr = 0
	continuity error

word	bcMethod
	Boundary Method.

word	fluxMethod
	Flux Method.

Eigen::MatrixXd	B_matrix
	Diffusion term.

Eigen::MatrixXd	M_matrix
	Mass Matrix.

Eigen::MatrixXd	K_matrix
	Gradient of pressure matrix.

List< Eigen::MatrixXd >	C_matrix
	Non linear term.

Eigen::Tensor< double, 3 >	C_tensor
	Diffusion term.

Eigen::MatrixXd	P_matrix
	Div of velocity.

Eigen::MatrixXd	D_matrix
	Laplacian term PPE.

List< Eigen::MatrixXd >	G_matrix
	Divergence of momentum PPE.

Eigen::Tensor< double, 3 >	gTensor
	Divergence of momentum PPE.

Eigen::MatrixXd	BC1_matrix
	PPE BC1.

List< Eigen::MatrixXd >	BC2_matrix
	PPE BC2.

Eigen::Tensor< double, 3 >	bc2Tensor
	PPE BC2.

Eigen::MatrixXd	BC3_matrix
	PPE BC3.

Eigen::MatrixXd	BC4_matrix
	PPE BC4.

Eigen::MatrixXd	W_matrix
	Mass Matrix New Time Step - Consistent Flux Method.

Eigen::MatrixXd	I_matrix
	Mass Matrix Old Time Step - Consistent Flux Method.

Eigen::MatrixXd	DF_matrix
	Diffusion Term - Consistent Flux Method.

Eigen::MatrixXd	KF_matrix
	Pressure Gradient Term - Consistent Flux Method.

Public Attributes inherited from reductionProblem
label	Pnumber
	Number of parameters.

label	Tnumber
	Dimension of the training set (used only when gerating parameters without input)

Eigen::MatrixXd	mu
	Row matrix of parameters.

Eigen::MatrixXd	mu_range
	Range of the parameter spaces.

Eigen::MatrixXd	mu_samples
	Matrix of parameters to be used for PODI, where each row corresponds to a sample point. In this matrix the time dimension is regarded as a parameter for unsteady problems.

double	mu_cur
	Current value of the parameter.

bool	podex
	Boolean variable, it is 1 if the POD has already been computed, else 0.

bool	offline
	Boolean variable, it is 1 if the Offline phase has already been computed, else 0.

IOdictionary *	ITHACAdict
	dictionary to store input output infos

autoPtr< argList >	_args
	argList

ITHACAparallel *	paral
	parallel handling

label	folderN = 1
	Counter to save intermediate steps in the correct folder, for unsteady and some stationary cases.

label	counter = 1
	Counter used for the output of the full order solutions.

Eigen::MatrixXi	inletIndex
	Matrix that contains informations about the inlet boundaries.

Eigen::MatrixXi	inletPatch
	Matrix that contains informations about the inlet boundaries without specifing the direction Rows = Number of parametrized boundary conditions Cols = 1 Example: example.inletIndex.resize(2, 1); example.inletIndex(0, 0) = 0; example.inletIndex(1, 0) = 1; Means that there are two parametrized boundary conditions of which the first row is of patch 0 and the second row of patch 1.

Eigen::MatrixXi	inletIndexT

Public Attributes inherited from UnsteadyProblem
scalar	startTime
	Start Time (initial time to start storing the snapshots)

scalar	finalTime
	Final time (final time of the simulation and consequently of the acquisition of the snapshots)

scalar	timeStep
	Time step of the simulation.

scalar	writeEvery = timeStep
	Time step of the writing procedure.

scalar	nextWrite
	Auxiliary variable to store the next writing instant.

Detailed Description

Implementation of a parametrized full order unsteady NS problem and preparation of the the reduced matrices for the online solve.

In this class are implemented the methods for the offline solve of a unsteady NS problem and the for the generation of the reduced matrices for subsequent online solve, this class is a son of the steadyNS class

Definition at line 67 of file UnsteadyNSTurb.H.

Constructor & Destructor Documentation

◆ UnsteadyNSTurb() [1/2]

UnsteadyNSTurb::UnsteadyNSTurb ( )

Construct Null.

Definition at line 39 of file UnsteadyNSTurb.C.

◆ UnsteadyNSTurb() [2/2]

UnsteadyNSTurb::UnsteadyNSTurb	(	int	argc,
		char *	argv[] )

Construct with argc and argv.

Number of velocity modes to be calculated

Number of pressure modes to be calculated

Number of nut modes to be calculated

Number of velocity modes used for the projection

Number of supremizers modes used for the projection

Number of pressure modes used for the projection

Number of nut modes used for the projection

Definition at line 42 of file UnsteadyNSTurb.C.

Member Function Documentation

◆ btTurbulence()

Eigen::MatrixXd UnsteadyNSTurb::btTurbulence	(	label	NUmodes,
		label	NSUPmodes )

bt added matrix for the turbulence treatement

Parameters

[in]	NUmodes	The N of velocity modes.s
[in]	NSUPmodes	The N of supremizer modes.

Returns: bt matrix for turbulence treatment

Definition at line 448 of file UnsteadyNSTurb.C.

◆ projectPPE()

void UnsteadyNSTurb::projectPPE	(	fileName	folder,
		label	NUmodes,
		label	NPmodes,
		label	NSUPmodes,
		label	nNutModes,
		bool	rbfInterp = true )

Project using the Poisson Equation for pressure.

Parameters

[in]	folder	The folder name
[in]	NUmodes	The number of velocity modes.
[in]	NPmodes	The number of pressure modes.
[in]	NSUPmodes	The number of supremizer modes which will be set to zero.
[in]	nNutModes	The number of eddy viscosity modes.
[in]	rbfInterp	A boolean variable that determines whether to carry out the RBF interpolation or not

Definition at line 811 of file UnsteadyNSTurb.C.

◆ projectSUP()

void UnsteadyNSTurb::projectSUP	(	fileName	folder,
		label	NUmodes,
		label	NPmodes,
		label	NSUPmodes,
		label	nNutModes,
		bool	rbfInterp = true )

Project using a supremizer approach.

Parameters

[in]	folder	The folder name
[in]	NUmodes	The number of velocity modes.
[in]	NPmodes	The number of pressure modes.
[in]	NSUPmodes	The number of supremizer modes.
[in]	nNutModes	The number of eddy viscosity modes.
[in]	rbfInterp	A boolean variable that determines whether to carry out the RBF interpolation or not

Definition at line 471 of file UnsteadyNSTurb.C.

◆ truthSolve()

void UnsteadyNSTurb::truthSolve	(	List< scalar >	mu_now,
		std::string &	offlinepath )

Perform a truthsolve.

Parameters

[in]	mu_now	The actual value of the parameter for this truthSolve. Used only to construct mu_interp matrix which is written out in the Offline folder, also for par file in the Parameters folder.
[in]	offlinepath	Path where solution should be stored

Definition at line 110 of file UnsteadyNSTurb.C.

◆ turbulenceAveTensor1()

Eigen::Tensor< double, 3 > UnsteadyNSTurb::turbulenceAveTensor1	(	label	NUmodes,
		label	NSUPmodes )

ct1Ave added tensor for approximation of the averaged part of the eddy viscosity

Parameters

[in]	NUmodes	The number of velocity modes.
[in]	NSUPmodes	The number of supremizer modes.

Returns: ct1Ave tensor corresponding to the approximation of the averaged part of the eddy viscosity for the turbulence treatement

Definition at line 238 of file UnsteadyNSTurb.C.

◆ turbulenceAveTensor2()

Eigen::Tensor< double, 3 > UnsteadyNSTurb::turbulenceAveTensor2	(	label	NUmodes,
		label	NSUPmodes )

ct2Ave added tensor for approximation of the averaged part of the eddy viscosity

Parameters

[in]	NUmodes	The number of velocity modes.
[in]	NSUPmodes	The number of supremizer modes.

Returns: ct2Ave tensor corresponding to the approximation of the averaged part of the eddy viscosity for the turbulence treatement

Definition at line 356 of file UnsteadyNSTurb.C.

◆ turbulencePPEAveTensor1()

Eigen::Tensor< double, 3 > UnsteadyNSTurb::turbulencePPEAveTensor1	(	label	NUmodes,
		label	NSUPmodes,
		label	NPmodes )

ct1PPEAve added tensor for approximation of the averaged part of the eddy viscosity with the usage of the PPE approach

Parameters

[in]	NUmodes	The number of velocity modes.
[in]	NSUPmodes	The number of supremizer modes.
[in]	NPmodes	The number of pressure modes.

Returns: ct1PPEAve tensor corresponding to the approximation of the averaged part of the eddy viscosity for the turbulence treatement with the usage of the PPE approach

Definition at line 297 of file UnsteadyNSTurb.C.

◆ turbulencePPEAveTensor2()

Eigen::Tensor< double, 3 > UnsteadyNSTurb::turbulencePPEAveTensor2	(	label	NUmodes,
		label	NSUPmodes,
		label	NPmodes )

ct2PPEAve added tensor for approximation of the averaged part of the eddy viscosity with the usage of the PPE approach

Parameters

[in]	NUmodes	The number of velocity modes.
[in]	NSUPmodes	The number of supremizer modes.
[in]	NPmodes	The number of pressure modes.

Returns: ct2PPEAve tensor corresponding to the approximation of the averaged part of the eddy viscosity for the turbulence treatement with the usage of the PPE approach

Definition at line 414 of file UnsteadyNSTurb.C.

◆ turbulencePPETensor1()

Eigen::Tensor< double, 3 > UnsteadyNSTurb::turbulencePPETensor1	(	label	NUmodes,
		label	NSUPmodes,
		label	NPmodes,
		label	nNutModes )

ct1PPE added tensor for the turbulence treatement in the PPE method

Parameters

[in]	NUmodes	The number of velocity modes.
[in]	NSUPmodes	The number of supremizer modes.
[in]	NPmodes	The number of pressure modes.
[in]	nNutModes	The number of eddy viscosity modes.

Returns: ct1PPE tensor for the turbulence treatement in the PPE method

Definition at line 265 of file UnsteadyNSTurb.C.

◆ turbulencePPETensor2()

Eigen::Tensor< double, 3 > UnsteadyNSTurb::turbulencePPETensor2	(	label	NUmodes,
		label	NSUPmodes,
		label	NPmodes,
		label	nNutModes )

ct2PPE added tensor for the turbulence treatement in the PPE method

Parameters

[in]	NUmodes	The number of velocity modes.
[in]	NSUPmodes	The number of supremizer modes.
[in]	NPmodes	The number of pressure modes.
[in]	nNutModes	The number of eddy viscosity modes.

Returns: ct2PPE tensor for the turbulence treatement in the PPE method

Definition at line 383 of file UnsteadyNSTurb.C.

◆ turbulenceTensor1()

Eigen::Tensor< double, 3 > UnsteadyNSTurb::turbulenceTensor1	(	label	NUmodes,
		label	NSUPmodes,
		label	nNutModes )

ct1 added tensor for the turbulence treatement

Parameters

[in]	NUmodes	The number of velocity modes.
[in]	NSUPmodes	The number of supremizer modes.
[in]	nNutModes	The number of eddy viscosity modes.

Returns: ct1 tensor for the turbulence treatement

Definition at line 211 of file UnsteadyNSTurb.C.

◆ turbulenceTensor2()

Eigen::Tensor< double, 3 > UnsteadyNSTurb::turbulenceTensor2	(	label	NUmodes,
		label	NSUPmodes,
		label	nNutModes )

ct2 added tensor for the turbulence treatement

Parameters

[in]	NUmodes	The number of velocity modes.
[in]	NSUPmodes	The number of supremizer modes.
[in]	nNutModes	The number of eddy viscosity modes.

Returns: ct2 tensor for the turbulence treatement

Definition at line 330 of file UnsteadyNSTurb.C.

◆ velDerivativeCoeff()

List< Eigen::MatrixXd > UnsteadyNSTurb::velDerivativeCoeff	(	Eigen::MatrixXd	A,
		Eigen::MatrixXd	G,
		Eigen::VectorXd	initSnapInd,
		Eigen::VectorXd	timeSnap )

A method to compute the two matrices needed for the RBF interpolation by combining the velocity L2 projection coefficients and their time derivatives.

Parameters

[in]	A	The velocity L2 projection coefficients
[in]	G	The eddy viscoisty L2 projection coefficients
[in]	initSnapInd	The initial snapshots indices for the different parameter samples
[in]	timeSnap	The time rate at which snapshots were taken for the different parameter samples

Returns: The matrix of the combined velocity L2 projection coefficients starting from the second snapshots for each parameter sample together with their time derivatives and also the matrix of the eddy viscosity L2 projection coefficients associated with the first matrix

Definition at line 1296 of file UnsteadyNSTurb.C.

◆ velParCoeff()

List< Eigen::MatrixXd > UnsteadyNSTurb::velParCoeff	(	Eigen::MatrixXd	A,
		Eigen::MatrixXd	G )

A method to compute the two matrices needed for the RBF interpolation by combining the parameter samples values with the velocity L2 projection coefficients.

Parameters

[in]	A	The velocity L2 projection coefficients
[in]	G	The eddy viscoisty L2 projection coefficients

Returns: The matrix of the combined parameter and velocity L2 projection coefficients and also the corresponding matrix of eddy viscosity L2 projection coefficients

Definition at line 1331 of file UnsteadyNSTurb.C.

◆ velParDerivativeCoeff() [1/2]

List< Eigen::MatrixXd > UnsteadyNSTurb::velParDerivativeCoeff	(	Eigen::MatrixXd	A,
		Eigen::MatrixXd	G,
		Eigen::VectorXd	initSnapInd,
		Eigen::VectorXd	timeSnap )

A method to compute the two matrices needed for the RBF interpolation by combining the parameter value and the velocity L2 projection coefficients and their time derivatives.

Parameters

[in]	A	The velocity L2 projection coefficients
[in]	G	The eddy viscoisty L2 projection coefficients
[in]	initSnapInd	The initial snapshots indices for the different parameter samples
[in]	timeSnap	The time rate at which snapshots were taken for the different parameter samples

Returns: The matrix of the combined parameter samples values with their corresponding velocity L2 projection coefficients starting from the second snapshots for each parameter sample together with their time derivatives and also the matrix of the eddy viscosity L2 projection coefficients associated with the previous matrix

Definition at line 1346 of file UnsteadyNSTurb.C.

◆ velParDerivativeCoeff() [2/2]

Eigen::MatrixXd UnsteadyNSTurb::velParDerivativeCoeff	(	Eigen::MatrixXd	A,
		Eigen::VectorXd	par,
		double	timeSnap )

A method to compute the matrix of the combination of the parameter sample value and the matrix of velocity projection coefficients together with their time derivatives based on the backward scheme.

Parameters

[in]	A	The velocity L2 projection coefficients
[in]	par	The parameter vector corresponding to the matrix A
[in]	timeSnap	The time rate at which snapshots are taken in matrix A

Returns: the matrix of the combination of the parameter sample value and the matrix of velocity projection coefficients together with their time derivatives based on the backward scheme

Definition at line 1386 of file UnsteadyNSTurb.C.

Member Data Documentation

◆ _nut

autoPtr<volScalarField> UnsteadyNSTurb::_nut

Eddy viscosity field.

Definition at line 158 of file UnsteadyNSTurb.H.

◆ _pRefCell

label UnsteadyNSTurb::_pRefCell

Pressure reference cell.

Definition at line 164 of file UnsteadyNSTurb.H.

◆ _pRefValue

scalar UnsteadyNSTurb::_pRefValue

Pressure reference value.

Definition at line 167 of file UnsteadyNSTurb.H.

◆ _Uf

autoPtr<surfaceVectorField> UnsteadyNSTurb::_Uf

Face velocity field.

Definition at line 161 of file UnsteadyNSTurb.H.

◆ btMatrix

Eigen::MatrixXd UnsteadyNSTurb::btMatrix

Turbulent viscosity term.

Definition at line 95 of file UnsteadyNSTurb.H.

◆ bTotalMatrix

Eigen::MatrixXd UnsteadyNSTurb::bTotalMatrix

Total B Matrix.

Definition at line 137 of file UnsteadyNSTurb.H.

◆ coeffL2

Eigen::MatrixXd UnsteadyNSTurb::coeffL2

The matrix of L2 projection coefficients for the eddy viscosity.

Definition at line 140 of file UnsteadyNSTurb.H.

◆ ct1AveTensor

Eigen::Tensor<double, 3 > UnsteadyNSTurb::ct1AveTensor

Turbulent average viscosity tensor for the splitting approach.

Definition at line 104 of file UnsteadyNSTurb.H.

◆ ct1PPEAveTensor

Eigen::Tensor<double, 3 > UnsteadyNSTurb::ct1PPEAveTensor

Turbulent average viscosity tensor for the splitting approach in the PPE equation.

Definition at line 110 of file UnsteadyNSTurb.H.

◆ ct1PPETensor

Eigen::Tensor<double, 3 > UnsteadyNSTurb::ct1PPETensor

Turbulent viscosity tensor in the PPE equation.

Definition at line 107 of file UnsteadyNSTurb.H.

◆ ct1Tensor

Eigen::Tensor<double, 3 > UnsteadyNSTurb::ct1Tensor

Turbulent viscosity tensor.

Definition at line 101 of file UnsteadyNSTurb.H.

◆ ct2AveTensor

Eigen::Tensor<double, 3 > UnsteadyNSTurb::ct2AveTensor

Turbulent average viscosity tensor for the splitting approach.

Definition at line 116 of file UnsteadyNSTurb.H.

◆ ct2PPEAveTensor

Eigen::Tensor<double, 3 > UnsteadyNSTurb::ct2PPEAveTensor

Turbulent average viscosity tensor for the splitting approach in the PPE equation.

Definition at line 122 of file UnsteadyNSTurb.H.

◆ ct2PPETensor

Eigen::Tensor<double, 3 > UnsteadyNSTurb::ct2PPETensor

Turbulent viscosity tensor in the PPE equation.

Definition at line 119 of file UnsteadyNSTurb.H.

◆ ct2Tensor

Eigen::Tensor<double, 3 > UnsteadyNSTurb::ct2Tensor

Turbulent viscosity tensor.

Definition at line 113 of file UnsteadyNSTurb.H.

◆ cTotalAveTensor

Eigen::Tensor<double, 3 > UnsteadyNSTurb::cTotalAveTensor

Turbulent total average viscosity tensor for the splitting approach.

Definition at line 128 of file UnsteadyNSTurb.H.

◆ cTotalPPEAveTensor

Eigen::Tensor<double, 3 > UnsteadyNSTurb::cTotalPPEAveTensor

Turbulent total average viscosity tensor for the splitting approach in the PPE equation.

Definition at line 134 of file UnsteadyNSTurb.H.

◆ cTotalPPETensor

Eigen::Tensor<double, 3 > UnsteadyNSTurb::cTotalPPETensor

Turbulent total viscosity tensor in the PPE equation.

Definition at line 131 of file UnsteadyNSTurb.H.

◆ cTotalTensor

Eigen::Tensor<double, 3 > UnsteadyNSTurb::cTotalTensor

Turbulent total viscosity tensor.

Definition at line 125 of file UnsteadyNSTurb.H.

◆ e

double UnsteadyNSTurb::e = 1

RBF functions radius.

Definition at line 149 of file UnsteadyNSTurb.H.

◆ interChoice

label UnsteadyNSTurb::interChoice = 1

Interpolation independent variable choice.

Definition at line 155 of file UnsteadyNSTurb.H.

◆ nNutModes

label UnsteadyNSTurb::nNutModes

Number of viscoisty modes used for the projection.

Definition at line 152 of file UnsteadyNSTurb.H.

◆ nutAve

PtrList<volScalarField> UnsteadyNSTurb::nutAve

List of for eddy viscosity time-averaged fields.

Definition at line 86 of file UnsteadyNSTurb.H.

◆ nutFields

PtrList<volScalarField> UnsteadyNSTurb::nutFields

List of snapshots for the solution for eddy viscosity.

Definition at line 80 of file UnsteadyNSTurb.H.

◆ nutModes

volScalarModes UnsteadyNSTurb::nutModes

List of POD modes for eddy viscosity.

Definition at line 83 of file UnsteadyNSTurb.H.

◆ radii

Eigen::VectorXd UnsteadyNSTurb::radii

RBF shape parameters vector.

Definition at line 146 of file UnsteadyNSTurb.H.

◆ rbfSplines

std::vector<SPLINTER::RBFSpline*> UnsteadyNSTurb::rbfSplines

Create a samples for interpolation.

Definition at line 92 of file UnsteadyNSTurb.H.

◆ samples

std::vector<SPLINTER::DataTable*> UnsteadyNSTurb::samples

Create a Rbf splines for interpolation.

Definition at line 89 of file UnsteadyNSTurb.H.

◆ velRBF

Eigen::MatrixXd UnsteadyNSTurb::velRBF

Velocity coefficients for RBF interpolation.

Definition at line 143 of file UnsteadyNSTurb.H.

◆ z

Eigen::MatrixXd UnsteadyNSTurb::z

Time-parameter combined matrix.

Definition at line 98 of file UnsteadyNSTurb.H.

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

/github/workspace/src/ITHACA_FOMPROBLEMS/UnsteadyNSTurb/UnsteadyNSTurb.H
/github/workspace/src/ITHACA_FOMPROBLEMS/UnsteadyNSTurb/UnsteadyNSTurb.C

Public Member Functions

Public Attributes

Detailed Description

Constructor & Destructor Documentation

◆ UnsteadyNSTurb() [1/2]

◆ UnsteadyNSTurb() [2/2]

Member Function Documentation

◆ btTurbulence()

◆ projectPPE()

◆ projectSUP()

◆ truthSolve()

◆ turbulenceAveTensor1()

◆ turbulenceAveTensor2()

◆ turbulencePPEAveTensor1()

◆ turbulencePPEAveTensor2()

◆ turbulencePPETensor1()

◆ turbulencePPETensor2()

◆ turbulenceTensor1()

◆ turbulenceTensor2()

◆ velDerivativeCoeff()

◆ velParCoeff()

◆ velParDerivativeCoeff() [1/2]

◆ velParDerivativeCoeff() [2/2]

Member Data Documentation

◆ _nut

◆ _pRefCell

◆ _pRefValue

◆ _Uf

◆ btMatrix

◆ bTotalMatrix

◆ coeffL2

◆ ct1AveTensor

◆ ct1PPEAveTensor

◆ ct1PPETensor

◆ ct1Tensor

◆ ct2AveTensor

◆ ct2PPEAveTensor

◆ ct2PPETensor

◆ ct2Tensor

◆ cTotalAveTensor

◆ cTotalPPEAveTensor

◆ cTotalPPETensor

◆ cTotalTensor

◆ e

◆ interChoice

◆ nNutModes

◆ nutAve

◆ nutFields

◆ nutModes

◆ radii

◆ rbfSplines

◆ samples

◆ velRBF

◆ z