GeometricField::dimensionedInteralFieldRef() -> GeometricField::ref()
In order to simplify expressions involving dimensioned internal field it is preferable to use a simpler access convention. Given that GeometricField is derived from DimensionedField it is simply a matter of de-referencing this underlying type unlike the boundary field which is peripheral information. For consistency with the new convention in "tmp" "dimensionedInteralFieldRef()" has been renamed "ref()".
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