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# 原文空氣動力題目(20點)

A Piper Cub, a general aviation airplane, is flying at a velocity of 60 miles per hour at a geometric altitude of 5,000 ft. At a point on the wing, the pressure is 1753.9 / . Calculate the velocity at that point, assuming incompressible flow?

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### 12 Answers

- 不好意思Lv 67 years agoFavorite Answer
請參考意見欄例題後，貼上你的解答和計算過程，請大家幫你看看。

Apply Bernoulli equation

gz + P/ρ + V2/2 = Constant

g = gravity

z = geometric altitude

P = pressure

ρ = air density

V = velocity

圖片參考：https://s.yimg.com/lo/api/res/1.2/FG_AQpEiVcYwM0hk...

2014-05-23 17:59:08 補充：

http://www.docstoc.com/docs/129030720/Applying-the...

第 3.24 題

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