I don't think aerodynamics will be useful for modelling flight paths of fuel; the holes will let air through, and even if the interaction is significant, it wouldn't be practical to model internal air flow.
Sidenote: I know one of the pieces of software in the KoP vouchers does airflow modelling, that might be worth looking into. Also
Wolfram Alpha Pro: Amazing.
But...
Here I'll link my projectile motion with air resistance desmos graph. I used it last year with the solid balls. It assumes that friction is proportional to velocity directly (ie not squared) which is technically an incorrect assumption, but it looks pretty.