Ship::Propeller4Q Class Reference

Inheritance diagram for Ship::Propeller4Q:

Collaboration diagram for Ship::Propeller4Q:

Classes
struct	Curve4Q

Public Types
enum	VentilationTheory { Ruth = 666 , Smogeli }
enum	PropellerType { Open , Ducted , Tunnel }

Public Member Functions
	Propeller4Q (const string simObjectName, ISimObjectCreator *const creator)
void	FinalSetup (const double T, const double *const X, ISimObjectCreator *const creator)
void	OdeFcn (const double T, const double *const X, double *const XDot, const bool bIsMajorTimeStep)
void	GetCurrent (const double T, const double *const X, const double position[3], double *currentVelocity)
const double *	Us (const double T, const double *const X)
const double *	Rs (const double T, const double *const X)
const double *	BetaT (const double T, const double *const X)
const double *	BetaQ (const double T, const double *const X)
const double *	Ct (const double T, const double *const X)
const double *	Cq (const double T, const double *const X)
const double *	ForceNED (const double T, const double *const X)
const double *	TorqueNED (const double T, const double *const X)
const double *	ForceBody (const double T, const double *const X)
const double *	TorqueBody (const double T, const double *const X)
const double *	BetaH (const double T, const double *const X)
const double *	PDCurrent (const double T, const double *const X)
const double *	ForceCorrectedBody (const double T, const double *const X)
const double *	TorqueCorrectedBody (const double T, const double *const X)
const double *	ForceCorrectedNED (const double T, const double *const X)
const double *	TorqueCorrectedNED (const double T, const double *const X)
const double *	ShaftTorqueCorrectedBody (const double T, const double *const X)
const double *	ShaftTorqueBody (const double T, const double *const X)
const double *	ShaftPowerCorrected (const double T, const double *const X)
const double *	ShaftPower (const double T, const double *const X)
void	Compute (const double T, const double *const X)

Protected Attributes
ICommonComputation *	m_compute
Eigen::Vector3d	m_ForceNED
Eigen::Vector3d	m_ForceBody
Eigen::Vector3d	m_TorqueNED
Eigen::Vector3d	m_TorqueBody
Eigen::Vector3d	m_ForceCorrectedNED
Eigen::Vector3d	m_ForceCorrectedBody
Eigen::Vector3d	m_TorqueCorrectedNED
Eigen::Vector3d	m_TorqueCorrectedBody
double	m_shaftTorque
double	m_shaftTorqueCorrected
double	m_shaftPower
double	m_shaftPowerCorrected
double	m_shaftPowerScaling
double	m_propellerThrustScaling
bool	m_lowSpeedJet
double	m_Us
double	m_Rs
double	m_betaT
double	m_betaQ
double	m_beta_h
double	m_PDcur
ISignalPort *	m_InOrientationNED
ISignalPort *	m_InMyRPM
ISignalPort *	m_InMyPD
ISignalPort *	m_InVelocityNED
ISignalPort *	m_InPositionNED
CEnvironment *	m_environment
PropellerType	m_PropellerType
VentilationTheory	m_VentilationTheory
int	m_IndexVentialtionStateQ
int	m_IndexVentialtionStateT
int	m_IndexAxialFlowStateLow
int	m_IndexAxialFlowStateHigh
int	m_IndexRotationalFlowState1
int	m_IndexRotationalFlowState2
double	m_D
int	m_numPD
double *	m_PD
Curve4Q *	m_curve
double	m_Cq
double	m_Ct
double	m_deltaBetaPlus
double	m_deltaBetaMinus
double	m_U
double	m_WakeFraction
double	m_ThrustDeduction
bool	m_azimuthinMainLoss

Member Enumeration Documentation

PropellerType

enum Ship::Propeller4Q::PropellerType

List of propeller types

VentilationTheory

enum Ship::Propeller4Q::VentilationTheory

List of ventilation theories

Member Function Documentation

BetaH()

const double * Ship::Propeller4Q::BetaH	(	const double	T,
		const double *const	X
	)

Current hydrodynamic angle of attack

BetaQ()

const double * Ship::Propeller4Q::BetaQ	(	const double	T,
		const double *const	X
	)

The percentage of torque loss due to ventilation [-]

BetaT()

const double * Ship::Propeller4Q::BetaT	(	const double	T,
		const double *const	X
	)

The percentage of thrust loss due to ventilation [-]

Cq()

const double * Ship::Propeller4Q::Cq	(	const double	T,
		const double *const	X
	)

Currently used torque coefficient

Ct()

const double * Ship::Propeller4Q::Ct	(	const double	T,
		const double *const	X
	)

Currently used thrust coefficient

ForceBody()

const double * Ship::Propeller4Q::ForceBody	(	const double	T,
		const double *const	X
	)

The force produced by the propeller in body coordinates

ForceCorrectedBody()

const double * Ship::Propeller4Q::ForceCorrectedBody	(	const double	T,
		const double *const	X
	)

Force corrected for loss effects in body frame

ForceCorrectedNED()

const double * Ship::Propeller4Q::ForceCorrectedNED	(	const double	T,
		const double *const	X
	)

The force produced by the propeller in north-east-down coordinates

ForceNED()

const double * Ship::Propeller4Q::ForceNED	(	const double	T,
		const double *const	X
	)

The force produced by the propeller in north-east-down coordinates

GetCurrent()

void Ship::Propeller4Q::GetCurrent ( const double  T, const double *const  X, const double  position[3], double *  currentVelocity  )

virtual

Implements ICurrentField.

PDCurrent()

const double * Ship::Propeller4Q::PDCurrent	(	const double	T,
		const double *const	X
	)

Current propeller PD value

Rs()

const double * Ship::Propeller4Q::Rs	(	const double	T,
		const double *const	X
	)

The radius of the propeller downstream jet in meters

ShaftPower()

const double * Ship::Propeller4Q::ShaftPower	(	const double	T,
		const double *const	X
	)

Shaft power consumed

ShaftPowerCorrected()

const double * Ship::Propeller4Q::ShaftPowerCorrected	(	const double	T,
		const double *const	X
	)

Shaft power consumed corrected for losses

ShaftTorqueBody()

const double * Ship::Propeller4Q::ShaftTorqueBody	(	const double	T,
		const double *const	X
	)

Shaft torque in body frame

ShaftTorqueCorrectedBody()

const double * Ship::Propeller4Q::ShaftTorqueCorrectedBody	(	const double	T,
		const double *const	X
	)

Shaft torque corrected for losses in body frame

TorqueBody()

const double * Ship::Propeller4Q::TorqueBody	(	const double	T,
		const double *const	X
	)

The torque produced by the propeller in body coordinates

TorqueCorrectedBody()

const double * Ship::Propeller4Q::TorqueCorrectedBody	(	const double	T,
		const double *const	X
	)

The torque produced by the propeller in body coordinates

TorqueCorrectedNED()

const double * Ship::Propeller4Q::TorqueCorrectedNED	(	const double	T,
		const double *const	X
	)

The torque produced by the propeller in north-east-down coordinates

TorqueNED()

const double * Ship::Propeller4Q::TorqueNED	(	const double	T,
		const double *const	X
	)

The torque produced by the propeller in north-east-down coordinates

Us()

const double * Ship::Propeller4Q::Us	(	const double	T,
		const double *const	X
	)

The propeller induced velocity on the water particle traveling through the propeller disk in m/s

Member Data Documentation

m_beta_h

double Ship::Propeller4Q::m_beta_h

protected

Hydrodynamic angle of attack

m_betaQ

double Ship::Propeller4Q::m_betaQ

protected

Fraction of torque due to ventilation

m_betaT

double Ship::Propeller4Q::m_betaT

protected

Fraction of thrust available due to ventilation

m_Cq

double Ship::Propeller4Q::m_Cq

protected

Current torque coefficient

m_Ct

double Ship::Propeller4Q::m_Ct

protected

Current thrust coefficient

m_curve

Curve4Q* Ship::Propeller4Q::m_curve

protected

Ct and Cq curves for each PD value

m_D

double Ship::Propeller4Q::m_D

protected

Propeller diameter

m_deltaBetaMinus

double Ship::Propeller4Q::m_deltaBetaMinus

protected

Maximum change rate for ventilation state in negative direction

m_deltaBetaPlus

double Ship::Propeller4Q::m_deltaBetaPlus

protected

Maximum change rate for ventilation state in positive direction

m_environment

CEnvironment* Ship::Propeller4Q::m_environment

protected

The environment object in the simulation

m_ForceBody

Eigen::Vector3d Ship::Propeller4Q::m_ForceBody

protected

Output variable for force in local frame

m_ForceCorrectedBody

Eigen::Vector3d Ship::Propeller4Q::m_ForceCorrectedBody

protected

Output variable for force corrected for losses in local frame

m_ForceCorrectedNED

Eigen::Vector3d Ship::Propeller4Q::m_ForceCorrectedNED

protected

Output variable for force corrected for losses in global frame

m_ForceNED

Eigen::Vector3d Ship::Propeller4Q::m_ForceNED

protected

Output variable for force in global frame

m_IndexAxialFlowStateHigh

int Ship::Propeller4Q::m_IndexAxialFlowStateHigh

protected

State index for high-speed axial induced propeller flow model

m_IndexAxialFlowStateLow

int Ship::Propeller4Q::m_IndexAxialFlowStateLow

protected

State index for low-speed axial induced propeller flow model

m_IndexVentialtionStateQ

int Ship::Propeller4Q::m_IndexVentialtionStateQ

protected

State index for ventilation torque correction

m_IndexVentialtionStateT

int Ship::Propeller4Q::m_IndexVentialtionStateT

protected

State index for ventilation force correction

m_InMyPD

ISignalPort* Ship::Propeller4Q::m_InMyPD

protected

The current pitch/diameter ratio of the propeller

m_InMyRPM

ISignalPort* Ship::Propeller4Q::m_InMyRPM

protected

The rotational speed of the propeller in RPM

m_InOrientationNED

ISignalPort* Ship::Propeller4Q::m_InOrientationNED

protected

The unit vector along the propeller thrust direction

m_InPositionNED

ISignalPort* Ship::Propeller4Q::m_InPositionNED

protected

The position of the propeller in north-east-down coordinates

m_InVelocityNED

ISignalPort* Ship::Propeller4Q::m_InVelocityNED

protected

The linear velocity which the propeller travels through the water in north-east-down coordinates

m_lowSpeedJet

bool Ship::Propeller4Q::m_lowSpeedJet

protected

Only use low speed propeller jet formulation

m_numPD

int Ship::Propeller4Q::m_numPD

protected

Number of PD values in use

m_PD

double* Ship::Propeller4Q::m_PD

protected

Vector of PD values

m_PDcur

double Ship::Propeller4Q::m_PDcur

protected

Current PD value

m_propellerThrustScaling

double Ship::Propeller4Q::m_propellerThrustScaling

protected

Linear scale applied to thrust output

m_PropellerType

PropellerType Ship::Propeller4Q::m_PropellerType

protected

Type op propeller(used for ventilation model)

m_Rs

double Ship::Propeller4Q::m_Rs

protected

Propeller jet stream radius "downstream"

m_shaftPower

double Ship::Propeller4Q::m_shaftPower

protected

Output variable for shaft power

m_shaftPowerCorrected

double Ship::Propeller4Q::m_shaftPowerCorrected

protected

Output variable for shaft power corrected for losses and ventilation

m_shaftPowerScaling

double Ship::Propeller4Q::m_shaftPowerScaling

protected

Linear scale applied to shaft power output

m_shaftTorque

double Ship::Propeller4Q::m_shaftTorque

protected

Output variable for shaft torque

m_shaftTorqueCorrected

double Ship::Propeller4Q::m_shaftTorqueCorrected

protected

Output variable for shaft torque corrected for losses and ventilation

m_ThrustDeduction

double Ship::Propeller4Q::m_ThrustDeduction

protected

Thrust deduction factor (reduction in effective thrust from low pressure region generated on hull by propeller)

m_TorqueBody

Eigen::Vector3d Ship::Propeller4Q::m_TorqueBody

protected

Output variable for in local frame

m_TorqueCorrectedBody

Eigen::Vector3d Ship::Propeller4Q::m_TorqueCorrectedBody

protected

Output variable for torque corrected for losses in local frame

m_TorqueCorrectedNED

Eigen::Vector3d Ship::Propeller4Q::m_TorqueCorrectedNED

protected

Output variable for torque corrected for losses in global frame

m_TorqueNED

Eigen::Vector3d Ship::Propeller4Q::m_TorqueNED

protected

Output variable for torque in global frame

m_U

double Ship::Propeller4Q::m_U

protected

Inflow velocity

m_Us

double Ship::Propeller4Q::m_Us

protected

Induced velocity in propeller jet stream

m_VentilationTheory

VentilationTheory Ship::Propeller4Q::m_VentilationTheory

protected

Ventilation theory in use

m_WakeFraction

double Ship::Propeller4Q::m_WakeFraction

protected

Hull wake fraction (decrease in inflow velocity vs free stream velocity)

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

• reloadrepos/fhsim_marine_elements/src/ship/Propeller4Q.h