Verification Case 70
PRODUCT: AFT Fathom (with SSL Module)
TITLE: FthVerify70.fth
REFERENCE: Wilson, Addie, Sellgren & Clift, Slurry Transport Using Centrifugal Pumps 3rd Edition, 2006, Publisher Springer, Page 145-147, Case Study 6.1
FLUID: Water/Sand
ASSUMPTIONS: Water temperature is assumed to be 4 C to match the specified fluid specific gravity of 1. The pipe length and inlet pressure were not specified in the problem statement. They were assumed to be 100 m and 1 MPa, respectively. The choice of pipe length and inlet pressure does not affect the resulting calculations. It was also assumed that Vt/Vts(Xi) = 0.55 for coarse sand.
RESULTS:
Wilson, Addie, Sellgren & Clift Results:
| Case | Velocity (meters/sec) | Cv (Decimal) | Im (m/m) | SEC (kW-hr/mton-km) |
| Cvd 0.221 | 5.70 | 0.221 | 0.0609 | 0.289 |
| Cvd 0.2 | 6.30 | 0.200 | 0.0612 | 0.315 |
| Cvd 0.183 | 6.90 | 0.183 | 0.0636 | 0.358 |
AFT Fathom Results:
| Case | Velocity (meters/sec) | Cv (Decimal) | Im (m/m) | SEC (kW-hr/mton-km) |
| Cvd 0.221 | 5.72 | 0.221 | 0.0613 | 0.285 |
| Cvd 0.2 | 6.32 | 0.200 | 0.0610 | 0.313 |
| Cvd 0.183 | 6.91 | 0.183 | 0.0633 | 0.355 |
DISCUSSION:
There is close agreement between the results for AFT Fathom and the results for Wilson, Addie, Sellgren and Clift.
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.
