kutta

Cesar Gimenes·crgimenes.kutta

Qualitative 2D wind tunnel with an airfoil editor

kutta streams a 2D flow past an airfoil and draws the speed field, vorticity, smoke streaklines and the lift/drag vectors while you change the angle of attack. It includes a shape editor to draw custom profiles, split a wing into wing + flap, and animate control surfaces with keyframes. Qualitative and educational — it captures the shape of the flow, not calibrated numbers.