Hi Im a student and i'm doing a research on how planes work and for my practical part I wanted to do some CFD simulations based on some models I generated. The problem is that when I check the simulation of forces, i get a MUCH lower L/D ratio than the expected value. Im using Simscale and incompressible simulation. I'd really appreaciate if someone could think of some things to check for to try and be able to solve the problem. Thanks in advance!