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CFD help

  1. Jul 24, 2015 #1
    Good morning, i am new to this forum.

    I work for a company we do spare parts.

    I am talking about injectors for diesel engines.




    I shoud admit i don't have knoledge about CFD.










    American customer sent us a table of common rail nozzles (bosch type DLLA ecc...)




    One column of the table have a value "Cd" ... serching the web it shoud be "discharge coefficent" I tried to understand what it is but I am not able.




    I send 3 lines from the table:




    INJ. NOZZLE HOLES SPRAY HOLE DIAMETER FLOW Cd




    *** ****** 7 0.195 1814 0.94

    *** ****** 7 0.198 1879 0.94

    *** ****** 7 0.163 1211 0.9







    Flow is 100bar pressure value is in ml/min
     
  2. jcsd
  3. Jul 24, 2015 #2

    boneh3ad

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    Science Advisor
    Gold Member

    Did you have some specific question here? Where does CFD come into play here?
     
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