Verification Case 78

View Model     Problem Statement

PRODUCT: AFT Fathom (with ANS Module)

TITLE: FthVerify78.fth

REFERENCE: James John, William Haberman, Introduction to Fluid Mechanics, 2nd Ed., 1980, Prentice-Hall, Example 6.6, page 179.

FLUID: Water

ASSUMPTIONS: N/A

RESULTS:

	John & Haberman	AFT Fathom Continuous	AFT Fathom Discrete
Minimum Diameter	0.0311 m	0.02848 m	0.03505 m
Nominal Size	-	-	1-1/4 in

DISCUSSION:

The AFT Fathom pipe material library only has ductile iron data from 3 inch to 54 inch. The minimized pipe size is less than 3 inch so steel pipe was substituted for cast iron. Because the roughness of steel pipe is less than cast iron, the minimized size for the continuous case was smaller than the reference value.

Both the continuous and discrete automated sizing scenarios were run to minimize flow volume.

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