Verification Case 53

View Model     Problem Statement

PRODUCT: AFT Fathom

TITLE: FthVerify53.fth

REFERENCE: William S. Janna, Introduction to Fluid Mechanics, 1983, PWS Publishers, Page 177-179, Example 5.7

FLUID: Water

ASSUMPTIONS: Water at 77F

RESULTS:

Parameter	Janna	AFT Fathom
Flow rate (ft3/sec)	0.0918	0.0905

DISCUSSION:

The various pipe lengths and intermediate junction elevations are not specified by Janna, so values were assigned to the AFT Fathom model such that the total length of 82 feet resulted, and the endpoint elevations were correct.

Results disagree slightly because Janna reads friction factors from a chart, which is less accurate than AFT Fathom's correlation based method.

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