Verification Case 43
PRODUCT: AFT Fathom
TITLE: FthVerify43.fth
REFERENCE: Theodore Baumeister, Eugene Avallone, Theodore Baumeister III, Marks’ Standard Handbook for Mechanical Engineers, 8th ed., 1978, McGraw-Hill, Page 3-58
FLUID: Benzene at 68 deg. F
ASSUMPTIONS: N/A
RESULTS:
| Parameter | Marks' | AFT Fathom |
| Flow rate in 1 inch pipe (ft3/sec) | 0.0750 | 0.0744 |
| Flow rate in 2 inch pipe (ft3/sec) | 0.4250 | 0.4256 |
| Pressure at discharge (psig) | 73.40 | 73.28 |
DISCUSSION:
In order to fix the flowrate of 0.5 ft3/sec given in the problem statement the second pressurized tank is defined as a branch junction with a flow sink. In AFT Fathom the convention for flow out of the system is to use a negative sign, so the flow sink is entered as -0.5 ft3/sec.
Note this model uses fluid properties from the AFT Standard fluid library. The AFT Standard fluid library was updated in AFT Fathom 12, thus the AFT Fathom results will be slightly different for this verification case when compared to previous versions of AFT Fathom.
