MaterialLib::Fluid::LinearPressureDependentViscosity Class Reference

Detailed Description

Class of a linear pressure dependent viscosity model.

\[ \mu = \mu_0\,(1 + \gamma (p -p_0) ) \]

where

\begin{eqnarray*} &\mu_0:& \mbox{reference viscosity,}\\ &\gamma:& \mbox{parameter,}\\ &p:& \mbox{pressure,}\\ &p_0:& \mbox{initial pressure.}\\ \end{eqnarray*}

Definition at line 35 of file LinearPressureDependentViscosity.h.

#include <LinearPressureDependentViscosity.h>

Inheritance diagram for MaterialLib::Fluid::LinearPressureDependentViscosity:

Collaboration diagram for MaterialLib::Fluid::LinearPressureDependentViscosity:

Public Member Functions
	LinearPressureDependentViscosity (const double mu0, const double p0, const double gamma)
std::string	getName () const override
	Get model name.
double	getValue (const ArrayType &var_vals) const override
double	getdValue (const ArrayType &var_vals, const PropertyVariableType var) const override
Public Member Functions inherited from MaterialLib::Fluid::FluidProperty
virtual	~FluidProperty ()=default

Private Attributes
const double	_mu0
	Reference viscosity.
const double	_p0
	Reference pressure.
const double	_gamma
	Parameter.

Additional Inherited Members
Public Types inherited from MaterialLib::Fluid::FluidProperty
using	ArrayType = std::array<double, PropertyVariableNumber>

Constructor & Destructor Documentation

LinearPressureDependentViscosity()

MaterialLib::Fluid::LinearPressureDependentViscosity::LinearPressureDependentViscosity ( const double mu0, const double p0, const double gamma )

inlineexplicit

Parameters

mu0	\( \mu_0 \)
p0	\( p_0 \)
gamma	\( \gamma \)

Definition at line 43 of file LinearPressureDependentViscosity.h.

        : _mu0(mu0), _p0(p0), _gamma(gamma)
    {
    }

Member Function Documentation

getdValue()

double MaterialLib::Fluid::LinearPressureDependentViscosity::getdValue ( const ArrayType & var_vals, const PropertyVariableType var ) const

inlineoverridevirtual

Get the partial differential of the viscosity with respect to pressure.

Parameters

var_vals	Variable values in an array. The order of its elements is given in enum class PropertyVariableType.
var	Variable type.

Implements MaterialLib::Fluid::FluidProperty.

Definition at line 71 of file LinearPressureDependentViscosity.h.

    {
        (void)var_vals;
        (void)var;
        return _mu0 * _gamma;
    }

References _gamma, and _mu0.

getName()

std::string MaterialLib::Fluid::LinearPressureDependentViscosity::getName ( ) const

inlineoverridevirtual

Get model name.

Implements MaterialLib::Fluid::FluidProperty.

Definition at line 51 of file LinearPressureDependentViscosity.h.

    {
        return "Linear pressure dependent viscosity";
    }

getValue()

double MaterialLib::Fluid::LinearPressureDependentViscosity::getValue ( const ArrayType & var_vals ) const

inlineoverridevirtual

Get viscosity value.

Parameters

var_vals

Variable values in an array. The order of its elements is given in enum class PropertyVariableType.

Implements MaterialLib::Fluid::FluidProperty.

Definition at line 60 of file LinearPressureDependentViscosity.h.

    {
        const double p = var_vals[static_cast<int>(PropertyVariableType::p)];
        return _mu0 * (1 + _gamma * (p - _p0));
    }

References _gamma, _mu0, _p0, and MaterialLib::Fluid::p.

Member Data Documentation

_gamma

const double MaterialLib::Fluid::LinearPressureDependentViscosity::_gamma

private

Parameter.

Definition at line 82 of file LinearPressureDependentViscosity.h.

Referenced by getdValue(), and getValue().

_mu0

const double MaterialLib::Fluid::LinearPressureDependentViscosity::_mu0

private

Reference viscosity.

Definition at line 80 of file LinearPressureDependentViscosity.h.

Referenced by getdValue(), and getValue().

_p0

const double MaterialLib::Fluid::LinearPressureDependentViscosity::_p0

private

Reference pressure.

Definition at line 81 of file LinearPressureDependentViscosity.h.

Referenced by getValue().

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

• MaterialLib/Fluid/Viscosity/LinearPressureDependentViscosity.h