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Simulating Flow in Orifice-Distance from inlet and outlet

  1. Nov 7, 2012 #1
    Hi Guys

    I am trying to simulate flow in an orifice plate

    I want to know what should be the distance between orifice and the inlet and outlet.

    I have checked few ISO files , only problem is they have values for practical conditions , such as minimum distance between orifice and expander/valve/bends etc

    I have found some values from different papers such as inlet should be 4 times diameter , outlet should be 23 times diameter etc etc but there is no proper reasoning behind it.

    Can anyone point me the right direction ?

    Also ,K-epsilon model is most widely used , but it seems RSM models give a better result

    Any comments on that ?

  2. jcsd
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