Material constants in user-defined functions for material properties

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Hello,

I am trying to create my own material property by adding an analytical function. This is a function of one input argument (frequency), but it contains several material constants.

I was hoping to use "local properties" table in the corresponding material settings to create my own local parameters. So that my function could be neatly written e.g. like

f=A*x

instead of

f=2.2454*x

And according to the "Materials Library User Guide":

"These local properties are useful for parameterizing functions that describe material properties if they contain inputs other than those that are model inputs"

However, it looks like the analytical function I am creating has no access to the "local properties". For instance, if I try to plot this function, Comsol gives me the error "Failed to evaluate variable: -Variable: A", even though A is defined as a local property.

What am I doing wrong?

regards,


0 Replies Last Post 23 févr. 2021 à 08:39 UTC−5
COMSOL Moderator

Hello Andriy Gorbach

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