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UPWIND5 Struct Reference

#include <ERF_Interpolation_UPW.H>

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Public Member Functions

 UPWIND5 (const amrex::Array4< const amrex::Real > &phi, const amrex::Real upw_frac)
 
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 upw_lo) 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 upw_lo) 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 upw_lo) const
 
AMREX_GPU_DEVICE AMREX_FORCE_INLINE amrex::Real Evaluate (const amrex::Real &sp2, const amrex::Real &sp1, const amrex::Real &s, const amrex::Real &sm1, const amrex::Real &sm2, const amrex::Real &sm3, const amrex::Real &upw) const
 
int GetUpwindCellNumber () const
 
void SetUpwinding (amrex::Real upw_frac)
 

Private Attributes

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

Static Private Attributes

static constexpr amrex::Real g1 =(37.0/60.0)
 
static constexpr amrex::Real g2 =(2.0/15.0)
 
static constexpr amrex::Real g3 =(1.0/60.0)
 

Detailed Description

Interpolation operators used for 5th order upwind scheme

Constructor & Destructor Documentation

◆ UPWIND5()

UPWIND5::UPWIND5 ( const amrex::Array4< const amrex::Real > &  phi,
const amrex::Real  upw_frac 
)
inline
309  : m_phi(phi)
310  , m_upw_frac(upw_frac)
311  {}
UPWIND5::m_upw_frac
amrex::Real m_upw_frac
Definition: ERF_Interpolation_UPW.H:426
UPWIND5::m_phi
amrex::Array4< const amrex::Real > m_phi
Definition: ERF_Interpolation_UPW.H:425

Member Function Documentation

◆ Evaluate()

AMREX_GPU_DEVICE AMREX_FORCE_INLINE amrex::Real UPWIND5::Evaluate ( const amrex::Real &  sp2,
const amrex::Real &  sp1,
const amrex::Real &  s,
const amrex::Real &  sm1,
const amrex::Real &  sm2,
const amrex::Real &  sm3,
const amrex::Real &  upw 
) const
inline
407  {
408  // Averages and diffs
409  amrex::Real a1 = (s + sm1);
410  amrex::Real a2 = (sp1 + sm2);
411  amrex::Real a3 = (sp2 + sm3);
412  amrex::Real d1 = (s - sm1);
413  amrex::Real d2 = (sp1 - sm2);
414  amrex::Real d3 = (sp2 - sm3);
415 
416  // Interpolated value
417  return ( g1*a1 - g2*a2 + g3*a3 - upw * g3 * (d3 - 5.0*d2 + 10.0*d1) );
418  }
UPWIND5::g2
static constexpr amrex::Real g2
Definition: ERF_Interpolation_UPW.H:428
UPWIND5::g1
static constexpr amrex::Real g1
Definition: ERF_Interpolation_UPW.H:427
UPWIND5::g3
static constexpr amrex::Real g3
Definition: ERF_Interpolation_UPW.H:429

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

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◆ GetUpwindCellNumber()

int UPWIND5::GetUpwindCellNumber ( ) const
inline
420 {return 3;}

◆ InterpolateInX()

AMREX_GPU_DEVICE AMREX_FORCE_INLINE void UPWIND5::InterpolateInX ( const int &  i,
const int &  j,
const int &  k,
const int &  qty_index,
amrex::Real &  val_lo,
amrex::Real  upw_lo 
) const
inline
322  {
323  // Data to interpolate on
324  amrex::Real sp2 = m_phi(i+2, j , k , qty_index);
325  amrex::Real sp1 = m_phi(i+1, j , k , qty_index);
326  amrex::Real s = m_phi(i , j , k , qty_index);
327  amrex::Real sm1 = m_phi(i-1, j , k , qty_index);
328  amrex::Real sm2 = m_phi(i-2, j , k , qty_index);
329  amrex::Real sm3 = m_phi(i-3, j , k , qty_index);
330 
331  // Upwinding flags
332  if (upw_lo != 0.) upw_lo = (upw_lo > 0) ? 1. : -1.;
333 
334  // Add blending
335  upw_lo *= m_upw_frac;
336 
337  // Interpolate lo
338  val_lo = Evaluate(sp2,sp1,s,sm1,sm2,sm3,upw_lo);
339  }
UPWIND5::Evaluate
AMREX_GPU_DEVICE AMREX_FORCE_INLINE amrex::Real Evaluate(const amrex::Real &sp2, const amrex::Real &sp1, const amrex::Real &s, const amrex::Real &sm1, const amrex::Real &sm2, const amrex::Real &sm3, const amrex::Real &upw) const
Definition: ERF_Interpolation_UPW.H:400
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◆ InterpolateInY()

AMREX_GPU_DEVICE AMREX_FORCE_INLINE void UPWIND5::InterpolateInY ( const int &  i,
const int &  j,
const int &  k,
const int &  qty_index,
amrex::Real &  val_lo,
amrex::Real  upw_lo 
) const
inline
350  {
351  // Data to interpolate on
352  amrex::Real sp2 = m_phi(i , j+2, k , qty_index);
353  amrex::Real sp1 = m_phi(i , j+1, k , qty_index);
354  amrex::Real s = m_phi(i , j , k , qty_index);
355  amrex::Real sm1 = m_phi(i , j-1, k , qty_index);
356  amrex::Real sm2 = m_phi(i , j-2, k , qty_index);
357  amrex::Real sm3 = m_phi(i , j-3, k , qty_index);
358 
359  // Upwinding flags
360  if (upw_lo != 0.) upw_lo = (upw_lo > 0) ? 1. : -1.;
361 
362  // Add blending
363  upw_lo *= m_upw_frac;
364 
365  // Interpolate lo
366  val_lo = Evaluate(sp2,sp1,s,sm1,sm2,sm3,upw_lo);
367  }
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◆ InterpolateInZ()

AMREX_GPU_DEVICE AMREX_FORCE_INLINE void UPWIND5::InterpolateInZ ( const int &  i,
const int &  j,
const int &  k,
const int &  qty_index,
amrex::Real &  val_lo,
amrex::Real  upw_lo 
) const
inline
378  {
379  // Data to interpolate on
380  amrex::Real sp2 = m_phi(i , j , k+2, qty_index);
381  amrex::Real sp1 = m_phi(i , j , k+1, qty_index);
382  amrex::Real s = m_phi(i , j , k , qty_index);
383  amrex::Real sm1 = m_phi(i , j , k-1, qty_index);
384  amrex::Real sm2 = m_phi(i , j , k-2, qty_index);
385  amrex::Real sm3 = m_phi(i , j , k-3, qty_index);
386 
387  // Upwinding flags
388  if (upw_lo != 0.) upw_lo = (upw_lo > 0) ? 1. : -1.;
389 
390  // Add blending
391  upw_lo *= m_upw_frac;
392 
393  // Interpolate lo
394  val_lo = Evaluate(sp2,sp1,s,sm1,sm2,sm3,upw_lo);
395  }
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◆ SetUpwinding()

void UPWIND5::SetUpwinding ( amrex::Real  upw_frac)
inline
422 {m_upw_frac = upw_frac;}

Member Data Documentation

◆ g1

constexpr amrex::Real UPWIND5::g1 =(37.0/60.0)
staticconstexprprivate

Referenced by Evaluate().

◆ g2

constexpr amrex::Real UPWIND5::g2 =(2.0/15.0)
staticconstexprprivate

Referenced by Evaluate().

◆ g3

constexpr amrex::Real UPWIND5::g3 =(1.0/60.0)
staticconstexprprivate

Referenced by Evaluate().

◆ m_phi

amrex::Array4<const amrex::Real> UPWIND5::m_phi
private

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

◆ m_upw_frac

amrex::Real UPWIND5::m_upw_frac
private

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

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