\[\snGrad Q
=
\underbrace{\alpha \frac{Q_P - Q_N}{| \vec{d} |}}_{\mathrm{implicit}}
+ \underbrace{\left( \hat{\vec{n}} - \alpha \hat{\vec{d}} \right) \dprod \left( \grad Q \right)_f}_{\mathrm{explicit\ correction}}\]
where \(\alpha = \frac{1}{cos(\theta)}\)
Properties🔗
- Central-difference snGrad scheme with non-orthogonal correction
- delta coefficients given by: nonOrthDeltaCoeffs
- explicit non-orthogonal correction
Usage🔗
The scheme is specified using:
snGradSchemes
{
default none;
grad(U) corrected;
}
Further information🔗
Source code