Find the pressure difference (in kPa) on an airplane wing if air flows over the upper surface with a speed of 125 m/s, and along the bottom

Question

Find the pressure difference (in kPa) on an airplane wing if air flows over the upper surface with a speed of 125 m/s, and along the bottom surface with a speed of 109 m/s. [Express answer in TWO decimal places]

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Thái Dương 4 years 2021-08-21T04:11:22+00:00 1 Answers 17 views 0

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  1. thienthanh
    0
    2021-08-21T04:12:39+00:00
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    Answer:

    P= 2414.9 Pa

    Explanation:

    given

    density of air , p = 1.29 kg/m³

    speed of air over the upper surface , v₁ = 125 m/s

    speed of air over the lower surface , v₂ = 109 m/s

    the pressure difference on an airplane wing , P = 0.5 × p × ( v₁² – v₂²)

    P = 0.5 × 1.29 × ( 125² – 109²)

    P= 0.645(3744)

    P = 2414.9 Pa

    the pressure difference on an airplane wing is 2414.9 Pa

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