Airplane Update #7

Hi, today I'll be sharing the velocity flow sim over the airplane that ANSYS calculated. For those interested, I used ANSYS 18.2 (student version) and created the sim using Fluent. Here it is:

As the air flows over the wings, it speeds up quite drastically (from 20m/s to about 23-25m/s) compared to the bottom of the wing (where the air continues to move at 20m/s). According to Bernoulli's Principle, this means that the pressure on the top of the wing will be less than that on the bottom, which corresponds to lift generation as the air "pushes" on the craft from underneath. In addition, the streamlines also show that air in the wake of the wings is being turned downwards, which will generate a positive lift force in accordance with Newton's third law of motion. However, there is also quite a bit of drag in this model, since once the air passes past the wings (but before reaching the tail) it slows down significantly. This, along with a pressure deficit in relation to the free flow (not shown), would correspond to a substantial drag. Finally, it appears that there are a lot of vortices emerging as the air passes over the tail. I'm not sure if that is just an ANSYS thing or if there's an issue with the design itself. I'll try testing different tails soon, see if there's a difference, and post an update when I get the chance.