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Air speed and differential pressure are there in relation?

  1. Jul 29, 2015 #1
    I am looking for a "simple" relation between differential pressure and air speed of a compressible fluid (air).
    I would like to calculate air speed in m/s in a a tube with a restrictor with only a differential pressure instrument, but not with experimentation, I'm looking for theorical formulation.

    Something like V= kP where V is in m/s, k a constant and P in Pa or mBar, I know there is the Darcy's law, but there is too much parameter that I could not measuring or knowing.

    Is my question is judicious ?
  2. jcsd
  3. Jul 29, 2015 #2


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    Staff: Mentor

    Welcome MARECHAL,

    No questions or discussions are allowed in this section, this is Introductions Only. Please post your question in the proper forum.

    Thank you.
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