Verification Case 8
PRODUCT: AFT Fathom
TITLE: FthVerify8.fth
REFERENCE: Ernest Brater, Horace Williams, James Lindell, C.Y. Wei, Handbook of Hydraulics, 7th Ed., 1996, McGraw-Hill, Page 6.40-42, Example 6.3a
FLUID: Water at 21 deg. C
ASSUMPTIONS: N/A
RESULTS:
| Parameter | Handbook | AFT Fathom |
| Head loss (meters) | 41.99 | 42.14 |
DISCUSSION:
The exit loss factor of 1.0 is modeled as part of the exit Assigned Flow.
The overall head loss in AFT Fathom is obtained by subtracting the discharge EGL (17.86 meters) from the supply (60 meters). It is also displayed in the General Results list at the top of the Output window. Finally, the head loss is given in the Junction Deltas table at the top of the Output window. The junction delta was setup in the Output Control window.
The difference in the final answer (61.48 vs. 61.33) is due to round-off errors in the handbook calculations.
