In Setup > Named Expression. In expression, you are able to write any function (for example T= a * sin(b*x) + c). You have to write the unit of the variable in square brackets while writing the expression.

thank you

Use expressions

please when i find in expression in fluent 16.

I think it is not available in Fluent 16, It is available after Fluent 19 or 20.

yes but we can use udf program with expression of parabolic temperature inlet