Verification Case 7

View Model     Problem Statement

PRODUCT: AFT Fathom

TITLE: FthVerify7.fth

REFERENCE: Ernest Brater, Horace Williams, James Lindell, C.Y. Wei, Handbook of Hydraulics, 7th Ed., 1996, McGraw-Hill, Page 6.31, Example 6.2

FLUID: Unspecified

ASSUMPTIONS: N/A

RESULTS:

Parameter	Handbook	AFT Fathom
Head loss (meters)	62.8	62.65

DISCUSSION:

The velocity and diameter are specified. For use in AFT Fathom, this is converted to a flow rate, obtaining 0.8482 cm3/sec. The unit weight is specified as 9580 N/m3. At 9.81 meters/sec2 gravitational acceleration, the density is thus 976.55 kg/m3.

The answers differ slightly because the handbook rounds off the Reynolds number to 3 digits.

No pressure boundary conditions are specified. In determining pressure drop, the boundary pressure plays no role. Therefore any value is suitable. The model assumes 1 MPa at the inlet.

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