add equation driven curve as parameter

I'm trying to fully define an airfoil 'parametrically', so that I can import it into ANSYS/Fluent and use shape optimisation. I can define the airfoil using 'equation driven curve' but can't find any way to add this equation as a parameter. Is there any way to do this? Any help would be appreciated, thanks...

SolidworksDrawings And Detailing