Ask HN: Online Tutor for Navier-Stokes / CFD

Hi,

I'm looking to learn about computational fluid dynamics for art projects.

I understand Python and graphics programming. However, I'm having trouble following the tutorials because I do not understand the symbols. http://lorenabarba.com/blog/cfd-python-12-steps-to-navier-stokes/

I would like to pay someone to answer basic questions.

Does anyone know what to look for in a math tutor who would understand this?