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I A1v1=a2v2? pressure and velocity are inversely proportional?

  1. May 16, 2018 #1
    If Bernoulli's equation P + 1/2ρv2 + ρgh = constant, implying that pressure decreases as velocity increases, and the Venturi effect states that a1v1 = a2v, what resolves this apparent contradiction? The velocity slows as the cross sectional area increases, but a narrower pipe would have greater pressure?
  2. jcsd
  3. May 16, 2018 #2
    I don't see any contradiction.
  4. May 16, 2018 #3


    Staff: Mentor

    There is no contradiction to resolve.

    You have this backwards. A larger pipe has greater pressure. That is why brain aneurysms are dangerous
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