A hybrid of Goldsby-Kohlstedt (2001) ice (constitutive form) and Paterson-Budd (1982)-Glen (viscosity form). More...

#include <GoldsbyKohlstedt.hh>

Inheritance diagram for pism::rheology::GoldsbyKohlstedt:

Public Member Functions
	GoldsbyKohlstedt (const std::string &prefix, const Config &config, EnthalpyConverter::Ptr EC)

Public Member Functions inherited from pism::rheology::FlowLaw
	FlowLaw (const std::string &prefix, const Config &config, EnthalpyConverter::Ptr EC)

virtual	~FlowLaw ()=default

void	effective_viscosity (double hardness, double gamma, double nu, double dnu) const
	Computes the regularized effective viscosity and its derivative with respect to the second invariant $\gamma$ .

void	effective_viscosity (double hardness, double gamma, double eps, double nu, double dnu) const

std::string	name () const

double	exponent () const

EnthalpyConverter::Ptr	EC () const

double	hardness (double E, double p) const

void	hardness_n (const double enthalpy, const double pressure, unsigned int n, double *result) const

double	softness (double E, double p) const

double	flow (double stress, double enthalpy, double pressure, double grain_size) const
	The flow law itself.

void	flow_n (const double stress, const double E, const double pressure, const double grainsize, unsigned int n, double *result) const

Protected Member Functions
virtual double	flow_impl (double stress, double E, double pressure, double grainsize) const

double	softness_impl (double E, double p) const __attribute__((noreturn))

double	hardness_impl (double E, double p) const

virtual double	flow_from_temp (double stress, double temp, double pressure, double gs) const

GKparts	flowParts (double stress, double temp, double pressure) const

Protected Member Functions inherited from pism::rheology::FlowLaw
virtual void	flow_n_impl (const double stress, const double E, const double pressure, const double grainsize, unsigned int n, double *result) const

virtual void	hardness_n_impl (const double enthalpy, const double pressure, unsigned int n, double *result) const

double	softness_paterson_budd (double T_pa) const
	Return the softness parameter A(T) for a given temperature T.

Protected Attributes
double	m_V_act_vol

double	m_d_grain_size

double	m_diff_crit_temp

double	m_diff_V_m

double	m_diff_D_0v

double	m_diff_Q_v

double	m_diff_D_0b

double	m_diff_Q_b

double	m_diff_delta

double	m_disl_crit_temp

double	m_disl_A_cold

double	m_disl_A_warm

double	m_disl_n

double	m_disl_Q_cold

double	m_disl_Q_warm

double	m_basal_A

double	m_basal_n

double	m_basal_Q

double	m_gbs_crit_temp

double	m_gbs_A_cold

double	m_gbs_A_warm

double	m_gbs_n

double	m_gbs_Q_cold

double	m_p_grain_sz_exp

double	m_gbs_Q_warm

Protected Attributes inherited from pism::rheology::FlowLaw
std::string	m_name

double	m_rho
	ice density

double	m_beta_CC_grad
	Clausius-Clapeyron gradient.

double	m_melting_point_temp
	melting point temperature (for water, 273.15 K)

EnthalpyConverter::Ptr	m_EC

double	m_schoofReg
	regularization parameter for $\gamma$

double	m_viscosity_power
	$(1 - n) / (2n)$ ; used to compute viscosity

double	m_hardness_power
	$- 1 / n$ ; used to compute hardness

double	m_A_cold
	Paterson-Budd softness, cold case.

double	m_A_warm
	Paterson-Budd softness, warm case.

double	m_Q_cold
	Activation energy, cold case.

double	m_Q_warm
	Activation energy, warm case.

double	m_crit_temp
	critical temperature (cold – warm transition)

double	m_standard_gravity
	acceleration due to gravity

double	m_ideal_gas_constant
	ideal gas constant

double	m_n
	power law exponent

Detailed Description

A hybrid of Goldsby-Kohlstedt (2001) ice (constitutive form) and Paterson-Budd (1982)-Glen (viscosity form).

Each FlowLaw has both a forward flow law in "constitutive law" form ("flow_from_temp()") and an inverted-and-vertically-integrated flow law ("effective_viscosity()"). Only the former form of the flow law is known for Goldsby-Kohlstedt. If one can invert-and-vertically-integrate the G-K law then one can build a "trueGKIce" derived class.

Definition at line 45 of file GoldsbyKohlstedt.hh.

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

src/rheology/GoldsbyKohlstedt.hh
src/rheology/GoldsbyKohlstedt.cc

Public Member Functions

Protected Member Functions

Protected Attributes

Detailed Description