reducedSimpleSteadyNS Class Reference

Class where it is implemented a reduced problem for the steady Navier-stokes problem. More...

#include <ReducedSimpleSteadyNS.H>

Inheritance diagram for reducedSimpleSteadyNS:

Public Member Functions
	reducedSimpleSteadyNS ()
	Construct Null.
	reducedSimpleSteadyNS (SteadyNSSimple &problem)
	Construct Null.
void	solveOnline_Simple (scalar mu_now, int NmodesUproj, int NmodesPproj, int NmodesNut=0, int NmodesSup=0, word Folder="./ITHACAoutput/Reconstruct/")
	Method to perform an online solve using a PPE stabilisation method.
void	setOnlineVelocity (Eigen::MatrixXd vel)
	It checks if the number of imposed boundary conditions is correct and set the inlet velocity equal to the given one.
Public Member Functions inherited from reducedProblem
	reducedProblem ()
	Construct Null.
	reducedProblem (reductionProblem &problem)
	Construct with reduced Problem.
virtual void	solveOnline ()
	Virtual Method to perform and online Solve.

Public Attributes
volVectorModes	ULmodes
	Lifted velocity modes.
SteadyNSSimple *	problem
	Full problem.
Eigen::MatrixXd	projGradModP
	Projected gradient of the pressure modes.
Eigen::MatrixXd	vel_now
	Imposed boundary conditions.
int	maxIterOn = 1000
	Maximum iterations number for the online step.
int	counter = 0
	Counter.
int	UprojN
int	PprojN
Public Attributes inherited from reducedProblem
scalar	nu
	Viscosity.
reductionProblem *	problem
	Pointer to FOAM problem.

Additional Inherited Members
Static Public Member Functions inherited from reducedProblem
static Eigen::MatrixXd	solveLinearSys (List< Eigen::MatrixXd > LinSys, Eigen::MatrixXd x, Eigen::VectorXd &residual, const Eigen::MatrixXd &bc=Eigen::MatrixXd::Zero(0, 0), const std::string solverType="fullPivLu")
	Linear system solver for the online problem.
static Eigen::MatrixXd	solveLinearSys (List< Eigen::MatrixXd > LinSys, Eigen::MatrixXd x, Eigen::VectorXd &residual, const std::string solverType)
	Linear system solver for the online problem.

Detailed Description

Class where it is implemented a reduced problem for the steady Navier-stokes problem.

In this class are implemented the methods to solve a reduced version of the stationary Navier-stokes equations. This class must be used together with the steadyNS class

Definition at line 59 of file ReducedSimpleSteadyNS.H.

Constructor & Destructor Documentation

reducedSimpleSteadyNS() [1/2]

reducedSimpleSteadyNS::reducedSimpleSteadyNS

(

)

Construct Null.

Definition at line 39 of file ReducedSimpleSteadyNS.C.

reducedSimpleSteadyNS() [2/2]

reducedSimpleSteadyNS::reducedSimpleSteadyNS ( SteadyNSSimple & problem )

explicit

Construct Null.

Parameters

[in]	problem	a full order steadyNS problem
[in]	tipo	Type of pressure stabilisation method you want to use "SUP" for supremizer, "PPE" for pressure Poisson equation.

Definition at line 43 of file ReducedSimpleSteadyNS.C.

~reducedSimpleSteadyNS()

reducedSimpleSteadyNS::~reducedSimpleSteadyNS ( )

inline

Definition at line 75 of file ReducedSimpleSteadyNS.H.

Member Function Documentation

setOnlineVelocity()

void reducedSimpleSteadyNS::setOnlineVelocity

(

Eigen::MatrixXd

vel

)

It checks if the number of imposed boundary conditions is correct and set the inlet velocity equal to the given one.

Parameters

[in]

vel

Inlet velocity

Definition at line 258 of file ReducedSimpleSteadyNS.C.

solveOnline_Simple()

void reducedSimpleSteadyNS::solveOnline_Simple	(	scalar	mu_now,
		int	NmodesUproj,
		int	NmodesPproj,
		int	NmodesNut = 0,
		int	NmodesSup = 0,
		word	Folder = "./ITHACAoutput/Reconstruct/" )

Method to perform an online solve using a PPE stabilisation method.

Parameters

[in]	vel_now	The vector of online velocity. It is defined in with an Eigen::MatrixXd and must have one col and as many rows as the number of parametrized boundary conditions.
[in]	NmodesUproj	The number of modes required for velocity projection
[in]	NmodesPproj	The number of modes required for pressure projection
[in]	Folder	The folder where we want to esport solutions (default is "./ITHACAoutput/Reconstruct/")

Definition at line 62 of file ReducedSimpleSteadyNS.C.

Member Data Documentation

counter

int reducedSimpleSteadyNS::counter = 0

Counter.

Definition at line 121 of file ReducedSimpleSteadyNS.H.

maxIterOn

int reducedSimpleSteadyNS::maxIterOn = 1000

Maximum iterations number for the online step.

Definition at line 118 of file ReducedSimpleSteadyNS.H.

PprojN

int reducedSimpleSteadyNS::PprojN

Definition at line 124 of file ReducedSimpleSteadyNS.H.

problem

SteadyNSSimple* reducedSimpleSteadyNS::problem

Full problem.

Definition at line 109 of file ReducedSimpleSteadyNS.H.

projGradModP

Eigen::MatrixXd reducedSimpleSteadyNS::projGradModP

Projected gradient of the pressure modes.

Definition at line 112 of file ReducedSimpleSteadyNS.H.

ULmodes

volVectorModes reducedSimpleSteadyNS::ULmodes

Lifted velocity modes.

Definition at line 106 of file ReducedSimpleSteadyNS.H.

UprojN

int reducedSimpleSteadyNS::UprojN

Definition at line 123 of file ReducedSimpleSteadyNS.H.

vel_now

Eigen::MatrixXd reducedSimpleSteadyNS::vel_now

Imposed boundary conditions.

Definition at line 115 of file ReducedSimpleSteadyNS.H.

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

• /github/workspace/src/ITHACA_ROMPROBLEMS/ReducedSimpleSteadyNS/ReducedSimpleSteadyNS.H
• /github/workspace/src/ITHACA_ROMPROBLEMS/ReducedSimpleSteadyNS/ReducedSimpleSteadyNS.C