7.6.15.13.16. Scalar_String_Function

Syntax: Porosity [{of} SpeciesName] = Scalar_String_Function F = f
Scope: Aria Material
Summary: Variable porosity defined by a scalar string function.
Description: The value, $\phi$ , is calculated from the user-defined string function, $f$ which can be a function of time ( $T$ ), coordinates ( $X$ , $Y$ , $Z$ ), or any valid expression name. Check the String Functions chapter (String Functions) for more details about valid functions and variables that can be used.