Stagnation point
Flow separation
Adverse pressure gradient
Dead air region
–big find-
Transport phenomena
Placeholding in this post to go back to. Transport coefficient and Onsager reciprocal relations will eventually follow. For now though, going to link back to a nice article.
https://arstechnica.com/science/2018/10/turbulence-the-oldest-unsolved-problem-in-physics/