Why XFOIL Matters
Designing a wing always starts with the same uncomfortable gap:
You can draw a beautiful airfoil shape but how do you know what it does aerodynamically?
For conventional aircraft, that gap is often bridged with wind-tunnel data, empirical charts, or CFD. For small UAVs and human-powered aircraft, those options are either too expensive or too slow to iterate.
XFOIL, written in Fortran at MIT by Mark Drela mit.edu/drela/xfoil, sits precisely in that gap. It provides a fast, physics-based way to go from geometry to aerodynamic coefficients lift, drag, and moment as a function... read more
The final car
CFD for Drone Design