ERF_WallGradientCoeffs.H File Reference

#include <AMReX_REAL.H>
#include <AMReX_GpuQualifiers.H>
#include "ERF_NumericalConstants.H"

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Classes
struct	WallGradCoeffs

Functions
AMREX_GPU_HOST_DEVICE AMREX_FORCE_INLINE WallGradCoeffs	WallGradientCoeffs (const amrex::Real dz0, const amrex::Real dz1) noexcept
AMREX_GPU_HOST_DEVICE AMREX_FORCE_INLINE WallGradCoeffs	WallGradientCoeffsUniform () noexcept

Function Documentation

WallGradientCoeffs()

AMREX_GPU_HOST_DEVICE AMREX_FORCE_INLINE WallGradCoeffs WallGradientCoeffs ( const amrex::Real  dz0, const amrex::Real  dz1  )

noexcept

{
    const amrex::Real f  = (dz1 / dz0) + two;
    const amrex::Real f2 = f*f;
    const amrex::Real c3 = two / (f - f2);
    const amrex::Real c2 = -f2*c3;
    const amrex::Real c1 = -(one-f2)*c3;
    return {c1, c2, c3};
}

Referenced by ImplicitDiffForMomLU_S(), and ImplicitDiffForMomLU_T().

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WallGradientCoeffsUniform()

AMREX_GPU_HOST_DEVICE AMREX_FORCE_INLINE WallGradCoeffs WallGradientCoeffsUniform ( )

noexcept

The uniform-mesh stencil, with the constants ComputeStrain_N uses.

{
    return {-eightthirds, three, -third};
}

Referenced by ImplicitDiffForMomLU_N().

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