Moody Diagram

I appear to be making a career out of re-drawing old diagrams which the department has been photocopying since 1968 and now are a bit tatty.

One of my latest attempts was to produce a Moody Diagram in SI Units on A4 paper. The code is available elsewhere but for your viewing pleasure I include the diagram here. It was produce using Python and Matplotlib so is full of free software goodness…..

Friction Factor vs Reynolds Number

Friction Factor vs Reynolds Number

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4 thoughts on “Moody Diagram

    1. grantingram Post author

      Looks o.k. to me. Note that friction factor is quite often defined differently in standard US practise. So it works out as f=64/Re for laminar flows, i.e four times larger than the ones shown on the chart in my post.

      Reply
  1. LKB

    I’m thrilled and thank you for a Moody Diagram for the Fanning Friction Factor/equation rather than the Darcy-Weisbach

    Reply

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