CENTERED4 Struct Reference

#include <ERF_Interpolation_UPW.H>

Collaboration diagram for CENTERED4:

Public Member Functions
	CENTERED4 (const amrex::Array4< const amrex::Real > &phi, const amrex::Real)
AMREX_GPU_DEVICE AMREX_FORCE_INLINE void	InterpolateInX (const int &i, const int &j, const int &k, const int &qty_index, amrex::Real &val_lo, amrex::Real) const
AMREX_GPU_DEVICE AMREX_FORCE_INLINE void	InterpolateInY (const int &i, const int &j, const int &k, const int &qty_index, amrex::Real &val_lo, amrex::Real) const
AMREX_GPU_DEVICE AMREX_FORCE_INLINE void	InterpolateInZ (const int &i, const int &j, const int &k, const int &qty_index, amrex::Real &val_lo, amrex::Real) const
AMREX_GPU_DEVICE AMREX_FORCE_INLINE amrex::Real	Evaluate (const amrex::Real &sp1, const amrex::Real &s, const amrex::Real &sm1, const amrex::Real &sm2) const
int	GetUpwindCellNumber () const

Private Attributes
amrex::Array4< const amrex::Real >	m_phi

Static Private Attributes
static constexpr amrex::Real	g1 =(7.0/12.0)
static constexpr amrex::Real	g2 =(1.0/12.0)

Detailed Description

Interpolation operators used for 4th order centered scheme

Constructor & Destructor Documentation

CENTERED4()

CENTERED4::CENTERED4 ( const amrex::Array4< const amrex::Real > &  phi, const amrex::Real    )

inline

        : m_phi(phi) {}

Member Function Documentation

Evaluate()

AMREX_GPU_DEVICE AMREX_FORCE_INLINE amrex::Real CENTERED4::Evaluate ( const amrex::Real &  sp1, const amrex::Real &  s, const amrex::Real &  sm1, const amrex::Real &  sm2  ) const

inline

    {
        // Averages and diffs
        amrex::Real a1 = (s   + sm1);
        amrex::Real a2 = (sp1 + sm2);
 
        // Interpolated value
        return ( g1*a1 - g2*a2 );
    }

Referenced by InterpolateInX(), InterpolateInY(), and InterpolateInZ().

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GetUpwindCellNumber()

int CENTERED4::GetUpwindCellNumber ( ) const

inline

{return 2;}

InterpolateInX()

AMREX_GPU_DEVICE AMREX_FORCE_INLINE void CENTERED4::InterpolateInX ( const int &  i, const int &  j, const int &  k, const int &  qty_index, amrex::Real &  val_lo, amrex::Real    ) const

inline

    {
        // Data to interpolate on
        amrex::Real sp1 = m_phi(i+1, j  , k  , qty_index);
        amrex::Real s   = m_phi(i  , j  , k  , qty_index);
        amrex::Real sm1 = m_phi(i-1, j  , k  , qty_index);
        amrex::Real sm2 = m_phi(i-2, j  , k  , qty_index);
 
        // Interpolate lo
        val_lo = Evaluate(sp1,s,sm1,sm2);
    }

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InterpolateInY()

AMREX_GPU_DEVICE AMREX_FORCE_INLINE void CENTERED4::InterpolateInY ( const int &  i, const int &  j, const int &  k, const int &  qty_index, amrex::Real &  val_lo, amrex::Real    ) const

inline

    {
        // Data to interpolate on
        amrex::Real sp1 = m_phi(i  , j+1, k  , qty_index);
        amrex::Real s   = m_phi(i  , j  , k  , qty_index);
        amrex::Real sm1 = m_phi(i  , j-1, k  , qty_index);
        amrex::Real sm2 = m_phi(i  , j-2, k  , qty_index);
 
        // Interpolate lo
        val_lo = Evaluate(sp1,s,sm1,sm2);
    }

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InterpolateInZ()

AMREX_GPU_DEVICE AMREX_FORCE_INLINE void CENTERED4::InterpolateInZ ( const int &  i, const int &  j, const int &  k, const int &  qty_index, amrex::Real &  val_lo, amrex::Real    ) const

inline

    {
        // Data to interpolate on
        amrex::Real sp1 = m_phi(i  , j  , k+1, qty_index);
        amrex::Real s   = m_phi(i  , j  , k  , qty_index);
        amrex::Real sm1 = m_phi(i  , j  , k-1, qty_index);
        amrex::Real sm2 = m_phi(i  , j  , k-2, qty_index);
 
        // Interpolate lo
        val_lo = Evaluate(sp1,s,sm1,sm2);
    }

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Member Data Documentation

g1

constexpr amrex::Real CENTERED4::g1 =(7.0/12.0)

staticconstexprprivate

Referenced by Evaluate().

g2

constexpr amrex::Real CENTERED4::g2 =(1.0/12.0)

staticconstexprprivate

Referenced by Evaluate().

m_phi

amrex::Array4<const amrex::Real> CENTERED4::m_phi

private

Referenced by InterpolateInX(), InterpolateInY(), and InterpolateInZ().

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

• Source/Utils/ERF_Interpolation_UPW.H