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 | 0.0609 | 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.
