Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Calculating Pressure and Volume for an Air Cannon Tank

  1. Mar 27, 2017 #1
    Morning all,

    I am working on a Air Cannon Project and have hit a stumbling block.

    I am trying to work out what tank pressure and volume I would need to project a 1.4kg mass to 83m/s when it leaves the barrel.

    The barrel the mass will travel down is 4 meters long and 6inch in diameter, would anyone be able to help?

    Thanks in advance!
  2. jcsd
  3. Mar 29, 2017 #2


    User Avatar
    Science Advisor

    Welcome to PF.

    The flow will be limited by restriction.
    How will you connect the air tank to the barrel?
    What valve will you use?
  4. Mar 29, 2017 #3
    Well that's six and a half square feet of barrel you need to fill just to get your missile to fall out of the end
    So... Start with a one square foot tank six and a half bar and go up
    That's the fun way
    If this is not for fun then it's proly homework
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?
Draft saved Draft deleted

Similar Threads - Calculating Pressure Volume Date
How to calculate flow loss between 90 and 45 degree fittings Dec 13, 2017