A wing in a viscous wind tunnel

Change the wing angle, then watch passive tracer trails move through the calculated flow. This fixed side view shows a single two-dimensional wing section, not a finite-span aerodynamic prediction.

Inlet: 1 m/s · viscous model fluidFlow → left to right · fixed 2D side view

Wing angle 8°

Pressure colors Pressure force and components Surface pressure arrows

Yellow: one pressure resultantPink: pressure drag →Green: pressure lift ↑

Pressure-only force per unit span, not full lift/drag. Viscous shear is omitted from arrows. Negative relative pressure is not negative absolute pressure. Surface arrows use the stair-step numerical boundary, not the smooth drawing. Reset can produce a start-up pressure spike, not steady-wing performance.

Starting the pressure solve…