Public Member Functions | Private Attributes | List of all members
oomph::HerschelBulkleyTanMilRegWithBlendingConstitutiveEquation< DIM > Class Template Reference

#include <generalised_newtonian_constitutive_models.h>

+ Inheritance diagram for oomph::HerschelBulkleyTanMilRegWithBlendingConstitutiveEquation< DIM >:

Public Member Functions

 HerschelBulkleyTanMilRegWithBlendingConstitutiveEquation (double *yield_stress_pt, double *flow_index_pt, double *critical_second_invariant_pt)
 "Cutoff regularised" Herschel Bulkley constitutive equation More...
 
double calculate_cutoff_viscosity ()
 
double calculate_viscosity_offset_at_zero_shear (double &cut_off_viscosity)
 
double calculate_zero_shear_viscosity ()
 Function that calculates the viscosity at zero I2. More...
 
void report_cut_off_values (double &cut_off_invariant, double &cut_off_viscosity, double &zero_shear_viscosity)
 Report cutoff values. More...
 
void calculate_fitting_parameters_of_cubic (double &a, double &b)
 
double viscosity (const double &second_invariant_of_rate_of_strain_tensor)
 Viscosity ratio as a fct of strain rate invariant. More...
 
double dviscosity_dinvariant (const double &second_invariant_of_rate_of_strain_tensor)
 Deriv of viscosity w.r.t. strain rate invariant. More...
 
- Public Member Functions inherited from oomph::GeneralisedNewtonianConstitutiveEquation< DIM >
 GeneralisedNewtonianConstitutiveEquation ()
 Empty constructor. More...
 
virtual ~GeneralisedNewtonianConstitutiveEquation ()
 Empty virtual destructor. More...
 

Private Attributes

double * Yield_stress_pt
 yield stress tau_y More...
 
double * Flow_index_pt
 power law index n More...
 
double * Critical_second_invariant_pt
 

Detailed Description

template<unsigned DIM>
class oomph::HerschelBulkleyTanMilRegWithBlendingConstitutiveEquation< DIM >

A GeneralisedNewtonianConstitutiveEquation class defining a Herschel-Bulkley fluid using Tanner and Milthorpe's (1983) regularisation with a smooth transition using a cubic

Definition at line 371 of file generalised_newtonian_constitutive_models.h.

Constructor & Destructor Documentation

template<unsigned DIM>
oomph::HerschelBulkleyTanMilRegWithBlendingConstitutiveEquation< DIM >::HerschelBulkleyTanMilRegWithBlendingConstitutiveEquation ( double *  yield_stress_pt,
double *  flow_index_pt,
double *  critical_second_invariant_pt 
)
inline

Member Function Documentation

template<unsigned DIM>
double oomph::HerschelBulkleyTanMilRegWithBlendingConstitutiveEquation< DIM >::calculate_cutoff_viscosity ( )
inline
template<unsigned DIM>
void oomph::HerschelBulkleyTanMilRegWithBlendingConstitutiveEquation< DIM >::calculate_fitting_parameters_of_cubic ( double &  a,
double &  b 
)
inline
template<unsigned DIM>
double oomph::HerschelBulkleyTanMilRegWithBlendingConstitutiveEquation< DIM >::calculate_viscosity_offset_at_zero_shear ( double &  cut_off_viscosity)
inline

Offset by how much the zero shear rate viscosity lies above the viscosity at I2_cutoff Hard-coded to a value that ensures a smooth transition

Definition at line 436 of file generalised_newtonian_constitutive_models.h.

Referenced by oomph::HerschelBulkleyTanMilRegWithBlendingConstitutiveEquation< DIM >::calculate_fitting_parameters_of_cubic(), and oomph::HerschelBulkleyTanMilRegWithBlendingConstitutiveEquation< DIM >::calculate_zero_shear_viscosity().

template<unsigned DIM>
double oomph::HerschelBulkleyTanMilRegWithBlendingConstitutiveEquation< DIM >::calculate_zero_shear_viscosity ( )
inline
template<unsigned DIM>
double oomph::HerschelBulkleyTanMilRegWithBlendingConstitutiveEquation< DIM >::dviscosity_dinvariant ( const double &  second_invariant_of_rate_of_strain_tensor)
inlinevirtual
template<unsigned DIM>
void oomph::HerschelBulkleyTanMilRegWithBlendingConstitutiveEquation< DIM >::report_cut_off_values ( double &  cut_off_invariant,
double &  cut_off_viscosity,
double &  zero_shear_viscosity 
)
inline
template<unsigned DIM>
double oomph::HerschelBulkleyTanMilRegWithBlendingConstitutiveEquation< DIM >::viscosity ( const double &  second_invariant_of_rate_of_strain_tensor)
inlinevirtual

Member Data Documentation

template<unsigned DIM>
double* oomph::HerschelBulkleyTanMilRegWithBlendingConstitutiveEquation< DIM >::Critical_second_invariant_pt
private
template<unsigned DIM>
double* oomph::HerschelBulkleyTanMilRegWithBlendingConstitutiveEquation< DIM >::Flow_index_pt
private
template<unsigned DIM>
double* oomph::HerschelBulkleyTanMilRegWithBlendingConstitutiveEquation< DIM >::Yield_stress_pt
private

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