\[\snGrad Q = \alpha \frac{Q_P - Q_N}{| \vec{d} |}\]

where

\[\alpha = \frac{1}{cos(\theta)}\]

Properties🔗

• Central-difference scheme without non-orthogonal correction
• Implicit evaluation
• delta coefficients given by: nonOrthDeltaCoeffs

Usage🔗

The scheme is specified using:

snGradSchemes
{
    default         none;
    grad(U)         uncorrected;
}

Further information🔗

Source code

• Foam::fv::uncorrectedSnGrad