Verification Case 10
PRODUCT: AFT Arrow
MODEL FILE: AroVerify10.ARO
REFERENCE: Michael R. Lindeburg, P.E., Mechanical Engineering Review Manual, Seventh Edition, Professional Publications, Belmont, CA, 1984, Pages 8-12, 8-13, example 8.14b
GAS: Methane
ASSUMPTIONS: 1) Isothermal flow, 2) Perfect gas
RESULTS:
| Parameter | Lindeburg | AFT Arrow |
| Mass flow rate (lbm/s) | 456 | 457 |
DISCUSSION:
The predictions agree closely. Part "a" makes a comparison to the Bernoulli equation, which Arrow does not solve. So part “a” was skipped.
Note that the friction factor in Lindeburg is the Fanning friction factor. To obtain the Darcy-Weisbach friction factor used in AFT Arrow, multiply the Fanning friction factor by 4.
