Mixed

Table of Contents

• Properties
• Usage
• Further information

Properties

• Robin condition
• a linear blend of fixed value 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

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