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Relationship of discharge and minor loss coefficient

  1. Feb 5, 2017 #1
    What is relationship between discharge coefficient and minor loss coefficient. Am I right with that equations?
    Mechanika_p_yn_w.png
    hl – minor head loss
    k – minor loss coefficient
    ρ – air density
    A – pipe cross section area
    Cd – discharge coefficient
    Δp – pressure drop
    u – air velocity
    m – mass flow

    here is written that it is true:
    https://neutrium.net/fluid_flow/discharge-coefficient-for-nozzles-and-orifices/
    https://en.wikipedia.org/wiki/Discharge_coefficient

    but what with case when k <= 1 ?
     
  2. jcsd
  3. Feb 9, 2017 #2
    is that question too difficult?
     
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