Verification Case 38

View Model     Problem Statement

PRODUCT: AFT Fathom

TITLE: FthVerify38.fth

REFERENCE: Crane Co., Flow of Fluids Through Valves, Fittings, and Pipe, Technical Paper No. 410, Crane Co., Joliet, IL, 1988, Page 4-12, Example 4-19

FLUID: Water at 60 deg. F

ASSUMPTIONS: N/A

RESULTS:

Parameter	Crane	AFT Fathom
Flow rate (gpm)	137	139

DISCUSSION:

Crane used friction factors of 0.021 and 0.020 based on a chart lookup. AFT Fathom calculated friction factors of 0.0201 and 0.0206 for the two pipes based on the Colebrook-White correlation. Crane's slightly larger friction factor from the chart lookup is the reason the results differ slightly.

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