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Flow through a pipe

  1. Feb 9, 2010 #1
    Hello guys,

    I need to model a pipe in modelica. Now modelica has its own fluid library where i can find a model of a pipe. But i need to model a pipe which has unequal inlet and outlet area. The outlet of the pipe is smaller than the inlet. Since mass going in the pipe=mass going out, hence the velocity of the fluid at the outlet should increase. I need a detail mathematical expression of this behavior. Please help me out.
  2. jcsd
  3. Feb 9, 2010 #2


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  4. Feb 9, 2010 #3


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    Bernoulli with loss terms included for frictional/viscous effects? Seems pretty cut and dry.
  5. Feb 24, 2010 #4
    you can ask for a help in http://waterdesign.tk/ [Broken] you ask them about pipes. they can help you
    Last edited by a moderator: May 4, 2017
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