Uncorrected surface-normal gradient scheme

Table of Contents

• Properties
• Usage
• Further information

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

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

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