A GeneralisedNewtonianConstitutiveEquation class defining a power-law fluid regularised according to Bercovier and Engelman (1980) to allow for n < 1. More...

#include <generalised_newtonian_constitutive_models.h>

Inheritance diagram for oomph::PowerLawBerEngRegConstitutiveEquation< DIM >:

Public Member Functions
	PowerLawBerEngRegConstitutiveEquation (double power_pt, double reg_par_pt)

double	viscosity (const double &second_invariant_of_rate_of_strain_tensor)
	Function implementing the constitutive model Input: second invariant of the rate of strain Output: the viscosity For Newtonian behaviour this returns 1. More...

Public Member Functions inherited from oomph::GeneralisedNewtonianConstitutiveEquation< DIM >
	GeneralisedNewtonianConstitutiveEquation ()
	Empty constructor. More...

virtual	~GeneralisedNewtonianConstitutiveEquation ()
	Empty virtual destructor. More...

virtual double	dviscosity_dinvariant (const double &second_invariant_of_rate_of_strain_tensor)=0
	Function returning the derivative of the viscosity w.r.t. the second invariant of the rate of strain tensor For Newtonian behaviour this returns 0.0. More...

Private Attributes
double *	Power_pt
	power law index n More...

double *	Regularisation_parameter_pt
	regularisation parameter e << 1 More...

Detailed Description

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

A GeneralisedNewtonianConstitutiveEquation class defining a power-law fluid regularised according to Bercovier and Engelman (1980) to allow for n < 1.

Definition at line 105 of file generalised_newtonian_constitutive_models.h.

Constructor & Destructor Documentation

◆ PowerLawBerEngRegConstitutiveEquation()

template<unsigned DIM>

oomph::PowerLawBerEngRegConstitutiveEquation< DIM >::PowerLawBerEngRegConstitutiveEquation	(	double *	power_pt,
		double *	reg_par_pt
	)

inline

Definition at line 117 of file generalised_newtonian_constitutive_models.h.

Member Function Documentation

◆ viscosity()

template<unsigned DIM>

double oomph::PowerLawBerEngRegConstitutiveEquation< DIM >::viscosity ( const double & second_invariant_of_rate_of_strain_tensor )

inlinevirtual

Function implementing the constitutive model Input: second invariant of the rate of strain Output: the viscosity For Newtonian behaviour this returns 1.

Implements oomph::GeneralisedNewtonianConstitutiveEquation< DIM >.

Definition at line 124 of file generalised_newtonian_constitutive_models.h.

References oomph::PowerLawBerEngRegConstitutiveEquation< DIM >::Power_pt, and oomph::PowerLawBerEngRegConstitutiveEquation< DIM >::Regularisation_parameter_pt.