Question

The lifting force required to lift an aeroplane is 1000 N/m². If velocity of air flow is 100 m/s inside its wing, then what Will be the velocity from the upper surface of the wing so that the aeroplane receive required lifting force?

(d = 1 kg/m³)

Answer 1

Given: P₁ - P₂ = 1000 N/m²; v₁ = 100 m/s; v₂ = ?; P = 1 kg m^-3

From Bernoulli's theorem:

Based on Surface Tension and Surface Energy