View Model     Problem Statement

PRODUCT: AFT Fathom

TITLE: FthVerify24.fth

REFERENCE: Michael R. Lindeburg, P.E., Mechanical Engineering Review Manual, 7th Ed., Professional Publications, Page 3-19, 21, Example 3.19

FLUID: Water

ASSUMPTIONS: N/A

RESULTS:

Parameter	Lindenburg	AFT Fathom
Head loss (feet)	51.6	51.53

DISCUSSION:

All input was provided explicitly by the problem statement.

Lindeburg pulls the friction factor directly from the Moody chart, while AFT Fathom uses the Colebrook-White equation to iterate for friction factor. Both methods result in a friction factor of 0.0195 if the friction factor is rounded to 4 digits.

Note this model uses fluid properties from the AFT Standard fluid library. The AFT Standard fluid library was updated in AFT Fathom 12, thus the AFT Fathom results will be slightly different for this verification case when compared to previous versions of AFT Fathom.

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