English Deutsch Français Italiano Español Português 繁體中文 Bahasa Indonesia Tiếng Việt ภาษาไทย
All categories

Use Bernoulli's equation to estimate the upward force on an airplane's wing if the average flow speed of air is 180 m/s above the wing and 155 m/s below the wing. The density of the air is 1.2 kg/m3 and the area of each wing surface is 27 m2

2007-11-01 10:54:44 · 1 answers · asked by Lzoza A 1 in Science & Mathematics Physics

1 answers

Bernoulli's equation says
p + 0.5ρV^2 + 0.5ρgh = constant where ρ is density.
Ignoring the small effect of the height-dependent pressure difference (since wing thickness isn't given), the pressure difference on the two sides of the wing is
Δp = 0.5ρ(V1^2-V2^2)
Then the force = AΔp where A = wing area

2007-11-02 13:01:41 · answer #1 · answered by kirchwey 7 · 0 0

fedest.com, questions and answers