Sup /sci/ , I'm an electrical eng student final year and due to this COVID19 my final year project basically came to an end and I had to adapt.

The project was buildint a vertical axis wind turbine, and to adapt I decided to do some analysis with airfoils (yeh, I know, completely nothing to do with electrical&electronics).

Anyway, Im having a little bit of a hard time trying to grasp some of the concepts. I am running some simulations in ANSYS fluent following a tutorial I found online.

So in the k-epsilon method for solving, the convergence graph that is generated, Im really at a loss how to interpret.

Tbh in the last 2-3 weeks ive been trying to teach myself loads about aerospace and some of it is just abit beyond. I was wondering if anyone could shed some light to understanding the concepts involved.

Thanks in advance!