Mixed

Properties

• Robin condition
• a linear blend of fixedValue and gradient conditions
• blending specified using a value fraction
• not usually applied directly, but used in derived types, e.g. the inletOutlet condition
• explicit and implicit contributions

Face values are evaluated according to:

$$\phi_f = w \phi_{\ref} + \left(1-w\right)\left(\phi_c + \Delta \grad{\phi}_{\ref} \right)$$

where $\phi_f$ : face value

$\phi_c$ : cell value

$\phi_{\ref}$ : reference value

$\Delta$ : face-to-cell distance

$w$ : value fraction

Usage

<patchName>
{
    type            mixed;
    refValue        <field value>;
    refGradient     <field value>;
    valueFraction   <field value>;
}

Further information

Source code:

• Foam::mixedFvPatchField