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Velocity of the pressure change

  1. May 31, 2015 #1
    Hej guys,

    Do you know how to calculate the pressure re balancing time in an underwater container where the liquid were de -pressured by taking very small amount of liquid away (just to have the normal enclosed liquid's gravitational pressure there, without the external water column's pressure). Opening a door would be the method for the re-pressurizing. So calculate instantaneous the water displacement and only the time requires to the pressure wave to balance the pressure needed...

    Thank you very much!
     
  2. jcsd
  3. May 31, 2015 #2

    mfb

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    Staff: Mentor

    Pressure changes usually propagate with the speed of sound in the medium. Reaching a good equilibrium can need longer in the same way as sound waves can bounce around in a room multiple times.
     
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