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Inflating tubes

  1. Apr 29, 2008 #1
    Ok imagine this:


    1 is a rigid pipe supplying air at a constant rate
    2 and 3 are elongated air tight cloth bags of equal volume
    4 is a rigid pipe connecting the 1,2 and 3 together

    Would both the bags fill at the same rate?

    I think they would and i THINK I know why, but i am not sure.

    Could someone tell me if they would/wouln't and why that is the case?

    Thanks for your time.
  2. jcsd
  3. Apr 29, 2008 #2


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    Gold Member

    The pressure will remain equal throughout the system, so the inflation rates should be the same. This assumes that there aren't any restrictions such as valves or regulators.
  4. Apr 29, 2008 #3


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    Staff: Mentor

    Since the OP hasn't provided any information about sizes or flow rates, we can't give a meaningful answer. Ie, are 1 and 4 equal in size? And speed matters too - if the velocity of the air in 1 is high and 4 T's off it, there will not be an even split of air.
  5. Apr 29, 2008 #4


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    Gold Member

    Good points. I spake too soon. :redface:
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