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Optimum container shape

  1. Mar 31, 2008 #1
    Hi there,
    I am developing a really cool new product and it somehow relates to pressure's behavior. Since I do not have any Physics background I will appreciate if someone could help me out.
    The thing is that I attach a small container to certain area. This attachment actually seals the container so the inside of the container is isolated. However, plastic permeability enable gas to penetrate the container's walls and accumulate in the container. At some stage, the gas pressure gets to a critical point in which it pushes the container from the inside and makes it bounce up detach from the area to which it was attached.
    Currently, the containe has a cylindrical shape with flat top. I figured out that since pressure acts in perpendicular direction on the surface, it is easy for it to push the container up since it has a flat top.
    I wonder, and here comes my question: If I'll make a cone shaped or a cylinder with sphere shaped top, will it reduce the risk of the container from bouncing up. My logic says that in a conic container. the pressure force will be distributed partly to the top direction and partly to the sides because of the diagonal angle of the cone's walls (Compared to a flat top which directs all the pressure's force directly up).
    Shortly, Would it be better to design a conic container than a flat-top container?

    Thank you for reading and I will appreciate your answer. If you have any ling that might be helpful here, I will appreciate your reference.

    Ofer
     
  2. jcsd
  3. Mar 31, 2008 #2

    marcusl

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    Science Advisor
    Gold Member

    The shape of a pressure vessel makes no difference, the force normal to the entrance is the same in all cases.
     
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