Zwinger Rate Factor. More...

#include <ConstitutiveRelation.H>

Inheritance diagram for ZwingerRateFactor:

Collaboration diagram for ZwingerRateFactor:

Public Member Functions
	ZwingerRateFactor (Real a_seconds_per_unit_time)

void	setDefaultParameters (Real a_seconds_per_unit_time)

void	setParameters (Real a_E, Real a_A0, Real a_T0, Real a_R, Real a_Qm, Real a_Qp)

void	computeA (FArrayBox &a_A, const FArrayBox &a_thetaPC, const FArrayBox &a_pressure, const Box &a_box) const

RateFactor *	getNewRateFactor () const

Public Member Functions inherited from RateFactor
virtual	~RateFactor ()

Detailed Description

Zwinger Rate Factor.

Another Arrhenius law, this one from Zwinger (2007) Annals of Glaciology vol 45 p 29 and used in (older versions of?) Elmer/Ice.

A = E*A0(T)*exp(-Qc / (R * T) ] where Qc = Qm = if theta < theta0; Qc = Qp otherwise. and A0 = Am = if theta < theta0; A0 = Ap otherwise. Am is computed so that A is continuous with T

Th is the usual pressure-corrected temperature Th = T + 7e−8 * P T0* = T0 + 7e−8 * P (T0 = 263, P = pressure) Qc = Qm = if Th < T∗; Qc = Qp if Th > T∗.

Defaults:

A0 = 1.916e3 Pa−3 s−1 * secondsperyear Qp = 139 kJ mol−1 Qm = 6e4 kJ mol−1 R=8.314 J

Constructor & Destructor Documentation

◆ ZwingerRateFactor()

ZwingerRateFactor::ZwingerRateFactor ( Real a_seconds_per_unit_time )

Member Function Documentation

◆ computeA()

void ZwingerRateFactor::computeA	(	FArrayBox &	a_A,
		const FArrayBox &	a_thetaPC,
		const FArrayBox &	a_pressure,
		const Box &	a_box
	)		const

virtual

Implements RateFactor.

References IceThermodynamics::icepmeltfactor().

Referenced by setParameters().

◆ getNewRateFactor()

RateFactor * ZwingerRateFactor::getNewRateFactor ( ) const

virtual

Implements RateFactor.

◆ setDefaultParameters()

void ZwingerRateFactor::setDefaultParameters ( Real a_seconds_per_unit_time )

References setParameters().

◆ setParameters()

void ZwingerRateFactor::setParameters	(	Real	a_E,
		Real	a_A0,
		Real	a_T0,
		Real	a_R,
		Real	a_Qm,
		Real	a_Qp
	)

References computeA().

Referenced by setDefaultParameters().

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

Public Member Functions